Hughes Network Hardware DW4020 User Manual
®
DW4020 Installation Guide  
1031484-0001  
Revision 3  
October 24, 2002  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Declaration of Conformity  
Standards to which Conformity is declared: FCC Part 15  
This device complies with part 15 of the FCC Rules. Operation is subject to the following  
two conditions:  
(1) this device may not cause harmful interference, and (2) this device must accept any  
interference received, including interference that may cause undesired operation.  
Responsible Party’s name: Hughes Network Systems, Inc.  
Address: 11717 Exploration Lane, Germantown, MD 20876  
Telephone: 866-DIRECWAY (347-3292)  
Trade Name: HUGHES  
Type of Equipment:Satellite Transmit and Receive Modem, VSAT, Ethernet Appliance  
Model Numbers:DW4-G1  
Part Numbers: 3003618  
•
iii  
1031484-0001 Revision 3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
•
iv  
1031484-0001 Revision 3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Contents  
About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi  
Scope and audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi  
Audience profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi  
Organization and updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi  
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii  
Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii  
Revision record. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii  
Chapter 1  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1  
DW4020 purpose and components. . . . . . . . . . . . . . . . . . . . . . . .1  
Characteristics and identification of equipment. . . . . . . . . . . . . .2  
Chapter 2  
Installing the indoor equipment . . . . . . . . . . . . . . . . . . . .5  
System pre-installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
Installation PC requirements . . . . . . . . . . . . . . . . . . . . . . . . . .5  
Customer installation requirements . . . . . . . . . . . . . . . . . . . . .5  
Two DW4020 installation methods . . . . . . . . . . . . . . . . . . . . .6  
Summary of DW4020 installation process. . . . . . . . . . . . . . . .6  
Antenna installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6  
Installing DIRECWAY installation software on installer laptop.8  
Installing the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9  
Installing the system using a modem . . . . . . . . . . . . . . . . . . . . .11  
The power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12  
Assembling the components, modem installation method. . .13  
Connect Ethernet, power up, and read the Gateway  
LED display  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Obtain IP address and test Ethernet connection . . . . . . . . . . .18  
The modems’ LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18  
Ethernet port LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20  
Running the DW4020 installation software, commissioning, and  
registering the customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21  
Post-commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27  
Peak the satellite signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27  
Connect to customer computer and confirm surfing . . . . . . .30  
If the customer cannot surf. . . . . . . . . . . . . . . . . . . . . . . . . . .31  
• Contents  
1031484-0001 Revision 2  
v
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3  
The User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33  
How to access the User Interface . . . . . . . . . . . . . . . . . . . . . . . .34  
The Home screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35  
The System Status indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . .36  
Transmit Status messages. . . . . . . . . . . . . . . . . . . . . . . . . . . .37  
Receive Status messages . . . . . . . . . . . . . . . . . . . . . . . . . . . .42  
Receive Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43  
Transmit Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44  
System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45  
The Connectivity Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . .47  
Network Operations Center (NOC) Connectivity . . . . . . . . .47  
Internet Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48  
The Firewall Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49  
The Settings Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49  
The Help Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51  
myDIRECWAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52  
Software updates and the User Interface . . . . . . . . . . . . . . . . . .52  
Chapter 4  
DW4020 LEDs and troubleshooting . . . . . . . . . . . . . . .53  
The DW4020 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53  
DW4020 LEDs status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54  
Normal operation, no transmit or receive. . . . . . . . . . . . . . . .54  
Normal operation, data being sent and received . . . . . . . . . .55  
Problem: receive modem READY LED not on . . . . . . . . . . .55  
Transmit modem READY LED not lit. . . . . . . . . . . . . . . . . .57  
Gateway LEDs not lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58  
Gateway LEDs flash, receive modem READY LED off or  
flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59  
LED blinking indicating status codes. . . . . . . . . . . . . . . . . . .60  
Ethernet port LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62  
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63  
Abbreviations and Acronyms . . . . . . . . . . . . . . . . . . . . .67  
Appendix A  
Lat/Long Decimals to Minutes Table. . . . . . . . . . . . . . .69  
• Contents  
1031484-0001 Revision 2  
vi  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix B  
The Internet and the DW4020 . . . . . . . . . . . . . . . . . . . .71  
Internet protocol (IP) and transmission control protocol (TCP) 71  
Turbo Intranet™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71  
IP addressing and the DW4020 . . . . . . . . . . . . . . . . . . . . . . .72  
Private IP addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74  
Types of hosts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74  
Private address space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74  
Private IP addressing and DW4020 customers . . . . . . . . . . .75  
DW4020s provide connections . . . . . . . . . . . . . . . . . . . . . . . . .76  
Subnet mask. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76  
Appendix C  
Installing the DW4020 Manually . . . . . . . . . . . . . . . . . .77  
Items needed for installation . . . . . . . . . . . . . . . . . . . . . . . . . . .77  
The power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78  
Assembling the components. . . . . . . . . . . . . . . . . . . . . . . . . .79  
Powering up and reading the DW4020 LED display. . . . . . .85  
The DW4020 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86  
DW4020 LEDs status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87  
Normal operation, no transmit or receive. . . . . . . . . . . . . . . .87  
Normal operation, data being sent and received . . . . . . . . . .88  
Problem: receive modem READY LED not on . . . . . . . . . . .88  
Transmit modem READY LED not lit. . . . . . . . . . . . . . . . . .90  
Gateway LEDs not lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91  
Gateway LEDs flash, receive modem READY LED off or  
flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92  
LED blinking indicating status codes. . . . . . . . . . . . . . . . . . .92  
Ethernet port LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94  
Communicating with the Gateway through the serial port. . . . .95  
Connecting the Gateway and laptop. . . . . . . . . . . . . . . . . . . .95  
Configuring Hyperterminal or terminal emulation program .95  
Configuring Boot Parameters. . . . . . . . . . . . . . . . . . . . . . . .101  
The Installation Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103  
Antenna Pointing - Receiver. . . . . . . . . . . . . . . . . . . . . . .104  
Antenna Pointing - Transmitter, Manual . . . . . . . . . . . . .106  
Antenna Pointing - Transmitter, Automatic . . . . . . . . . . .106  
Range value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107  
Verifying software download. . . . . . . . . . . . . . . . . . . . . . . . . .108  
DW4020 status information via the serial port . . . . . . . . . . . .110  
Verifying correct DW4020 operation. . . . . . . . . . . . . . . . . . . .110  
Displaying traffic statistics. . . . . . . . . . . . . . . . . . . . . . . . . .111  
Displaying PEP statistics . . . . . . . . . . . . . . . . . . . . . . . . . . .111  
The Final Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112  
• Contents  
1031484-0001 Revision 2  
vii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Other options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112  
Display active routing table . . . . . . . . . . . . . . . . . . . . . . .112  
Reset history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112  
Appendix D  
Configuring the installer laptop for IP addressing. . .113  
Windows 98SE and ME . . . . . . . . . . . . . . . . . . . . . . . . . . . .113  
Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116  
Windows XP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118  
Appendix E  
Installation checklist . . . . . . . . . . . . . . . . . . . . . . . . . . .121  
Installation summary and checklist . . . . . . . . . . . . . . . . . . . . .121  
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123  
• Contents  
1031484-0001 Revision 2  
viii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Important safety information  
For your safety and protection, read this entire manual before you  
attempt to install the DW4020. In particular, read this safety  
section carefully. Keep this safety information where you can  
refer to it if necessary.  
This section introduces the various types of warnings used in this  
manual to alert you to possible safety hazards.  
Types of warnings used  
in this manual  
DANGER  
Indicates an imminently hazardous situation, which, if not  
avoided, will result in death or serious injury.  
WARNING  
Indicates a potentially hazardous situation, which, if not  
avoided, could result in death or serious injury.  
CAUTION  
Indicates a potentially hazardous situation, which, if not  
avoided, may result in minor or moderate injury.  
CAUTION  
Indicates a situation or practice that might result in property  
damage.  
• Important safety information  
1031484-0001 Revision 2  
ix  
Download from Www.Somanuals.com. All Manuals Search And Download.  
• Important safety information  
1031484-0001 Revision 2  
x
Download from Www.Somanuals.com. All Manuals Search And Download.  
About this document  
This manual describes installing and servicing the DIRECWAY  
Scope and audience  
®
DW4020 terminal. It addresses installers, network system  
engineers, and network operators who install, commission,  
operate, and maintain the system.  
The DW4020 is installed by professional telecommunications  
installers. This product cannot be installed by the end user.  
Audience profile  
There are four primary audiences:  
• HNS Installers – at this time, only HNS installers will install  
this product.  
• Installer trainers, who prepare separate instructions for the  
installers.  
• Call center operators, who respond to user’s calls.  
• Call center trainers, who train call center operators.  
This manual is organized into the following chapters. Major  
changes from Revision 1 are identified.  
Organization and  
updates  
Chapter 1 - Introduction gives an overview of the DW4020 and its  
components. The description of IP addressing is moved to an  
appendix.  
Chapter 2 - Installing the indoor equipment provides information  
regarding installing and configuring the DW4020. The "modem"  
method using Websetup is documented. The "manual" method  
using the serial port is moved to an appendix.  
Chapter 3 - The User Interface provides information about the  
new browser-based interface. The interface reports performance  
data and information for configuring operating systems network  
settings.  
Chapter 4 - DW4020 LEDs and troubleshooting described LED  
activity and troubleshooting stratetgies.  
There is also a safety summary, glossary, list of abbreviations and  
acronyms, appendices, and index.  
• About this document  
1031484-0001 Revision 2  
xi  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
This manual follows the typographical conventions shown below  
to help clarify instructions:  
Conventions  
Example  
Explanation  
Indicates the names of command  
buttons that execute an action.  
Click Exit.  
The system displays the following: Indicates all system messages  
and prompts as the system  
displays them.  
Are you ready?  
Indicates operator input.  
Type exit  
Indicates the names of fields on  
windows.  
Enter a value in the Time field.  
Retrieve the following file:  
O:\template\techman_r3  
Indicates file names or file paths  
referenced in the manual.  
Indicates function or keyboard  
keys. Press two keys  
simultaneously—in this case, Alt  
and V.  
Press ALT+V to view the menu.  
Indicates the names of menu bar  
options on a software screen.  
Select the Edit menu.  
Indicates a menu/submenu  
sequence for selecting an action  
or option  
Go to Edit → Spelling Checker  
The installation of this product may also require the use of one of  
the following antenna or outdoor unit manuals:  
Related publications  
• DIRECWAY Satellite Dish Installation Guide Model:  
DW4000 Two-Way (HNS 1031362-0201)  
• DIRECWAY Outdoor Unit Installation Guide DW 4000-098  
DW 4000-120 (HNS 1032025-0001)  
• .89/.98M Ku-Band Rx/Tx Series 1892/1982 Antenna System  
Assembly Manual (Prodelin 4906-629)  
• 1.2m Ku-Band Rx/Tx Series 1132 Antenna System  
(Prodelin 4906-630)  
Revision record  
Revision  
Rev 1  
Date of issue  
8/02/02  
Scope  
Production release  
Rev 2  
9/27/02  
Incorporates Web commissioning  
Rev 3  
10/24/02  
Documents change to Websetup  
Welcome screen  
• About this document  
1031484-0001 Revision 2  
xii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 1  
Introduction  
This chapter addresses the following topics:  
• DW4020 purpose and components on page 1  
• Characteristics and identification of equipment on page 2  
The DW4020 is designed to provide multiple computer  
DW4020 purpose and  
components  
connections through a single DIRECWAY terminal. It is  
®
composed of three stackable components as shown in Figure 1:  
• Receive modem (also sometimes referred to as the Indoor  
Receive Unit (IRU))  
• Transmit modem (also sometimes referred to as the Indoor  
Transmit Unit (ITU))  
• Gateway (GWH)  
Note: Revision 1 of this manual referred to the DW4020 as the  
"Gateway," and the Gateway as the "Gateway host." This  
terminology has changed. Please use the terminology in this  
manual.  
Receive modem  
Transmit modem  
Gateway  
Figure 1: The DW4020  
Chapter 1 • Introduction  
1031484-0001 Revision 2  
1
Download from Www.Somanuals.com. All Manuals Search And Download.  
                 
These units, in combination with an antenna, provide satellite  
connectivity for multiple local area network (LAN) hosts through  
one DIRECWAY System. All the necessary software resides on  
the Gateway, which serves as the router. Because the software is  
on the Gateway, there is no need for a computer to run client  
software, unlike previous versions of DIRECWAY.  
Figure 1 illustrates the functionality of the DW4020 within a  
DIRECWAY network. Note that the DW4020 is independent of  
operating platforms. It can also be used with devices other than  
computers, such as point-of-sale (POS) terminals or credit  
verification devices.  
POS terminal  
or other device  
Satellite  
Inroute  
Unix  
Mac  
PC  
DIRECWAY  
Network  
Operations  
Center (NOC)  
Outroute  
Linux  
Antenna  
Ethernet  
Gateway  
Internet  
G-25080 F  
08/27/02  
Figure 2: Remote site with DW4020 installed  
The part number label is located on the rear of the unit.  
Table 1 shows the hardware characteristics of the DW4020.  
Table 2 shows the physical characteristics of the unit.  
Characteristics and  
identification of  
equipment  
Table 3 shows the cable requirements for the unit. The cable  
requirements are the same regardless of the type of antenna used.  
Chapter 1 • Introduction  
1031484-0001 Revision 2  
2
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
.
Table 1: DW4020 hardware characteristics  
Characteristic  
Main processor  
Ethernet 10/100  
DW4020  
200Mhz  
4 ports (switched)  
RJ-45  
Main Memory  
Flash Memory  
Serial Port  
32MB  
8MB  
Asynchronous RS232  
One USB 1.1 (Type A)  
USB Port  
Table 2: DW4020 physical characteristics  
Characteristic  
Value  
Physical Dimensions  
Height  
Width  
Depth  
Weight  
5.75 inches  
6.5 inches  
8.8 inches  
4.0 lbs.  
Electrical Requirements  
Input line voltage  
Input line frequency  
Current Required  
90 - 264 V ~ 2A max,  
50-60 HZ AC  
100 W typical  
Chapter 1 • Introduction  
1031484-0001 Revision 2  
3
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Table 3: Cable requirements  
Grounding and Cable Choice  
Your choice of grounding scheme may affect your choice of cable. Note that meeting the  
National Electrical Code grounding requirements is easier if you use RG-6 with quad shield.  
However, you can also use standard RG-6 and ground according to the Code or the  
instructions in the antenna installation manual.  
Recommended cable specifications for One-Way and Two-Way Systems  
Cable length from satellite Type of cable to be used  
dish to DW4020  
Receive  
Transmit  
Up to 300 ft.  
RG6 with solid copper  
center conductor  
(CommScope 5729 or  
equivalent)  
RG6 with solid copper  
center conductor  
(CommScope 5729 or  
equivalent)  
300 ft. to 420 ft.  
RG6 with solid copper  
center conductor  
(CommScope 5729 or  
equivalent)  
RG6 with solid copper  
center conductor and quad  
shield (CommScope 5781  
or equivalent)  
Important: A higher grade of cable can be used for an installation where a lower grade is  
specified. For example, an RG6 cable with solid copper center conductor and quad shield  
can be used for installations where the cable length is less than 300 ft. Never use a lower  
grade of cable than specified. Be sure to record the grade of the cable used for your  
installation. The grade is printed on the cable every few feet. Never use a cable which  
does not have the manufacturers name and its grade clearly printed on it!  
Important notes:  
1. Coaxial cables with copper clad steel center conductor are  
not recommended.  
2. Do not use splitters.  
3. Line amplifiers are required for Receive cable runs of more  
than 150 ft.  
4. If the Receive cable run length is less that 150 ft., then no line  
amplifier is required. If the Receive cable run length is  
greater than 150 ft., but less than 300 ft., then install a a line  
amplifier in the Receive cable only, at a minimum of 25 ft.  
and up to 30 ft. from the LNB.  
5. A line amplifier can only be installed in the Receive cable,  
not in the Transmit cable.  
6. Line amplifier specification: Channel Master 5113 IFD or  
equivalent.  
Chapter 1 • Introduction  
1031484-0001 Revision 2  
4
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 2  
Installing the indoor equipment  
Together, the receive modem, the transmit modem, and the  
System pre-installation  
Gateway are called the DW4020 and sometimes referred to as the  
indoor unit (IDU). The receive modem is also called the IRU; the  
transmit modem is also called the ITU; and the Gateway is  
sometimes called the GWH.  
The three units must be stacked correctly to ensure proper heat  
dissipation. The receive modem must be installed on top of the  
transmit modem, which is in turn installed on top of the Gateway.  
See Figure 10 on page 15.  
The installer laptop PC must fulfill the following requirements:  
Installation PC requirements  
• USB port  
• Ethernet  
• Dial-out modem  
• Windows 98 or higher, with DHCP configured to  
automatically accept IP addresses. See Appendix D.  
• Websetup installed. See Installing DIRECWAY installation  
software on installer laptop on page 8.  
The customer must have:  
Customer installation  
requirements  
• A functioning Ethernet interface installed on at least one  
computer. This is not necessary to commission the DW4020,  
but you must ensure the customer can surf before you leave.  
• Ethernet cables; as many as there are computers that will  
connect to the DW4020.  
• An analog phone line.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
             
There two ways to install the DW4020.  
Two DW4020 installation  
methods  
• If an analog phone line is available, assemble and install the  
system using the instructions in Installing the system using a  
modem on page 11. This method is preferred and is usually  
the one that will be used.  
• If no analog phone line is available, you must configure the  
DW4020 through the serial port. Follow the instructions in  
Appendix C.  
DW4020 installation is a 10-step process.  
Summary of DW4020  
installation process  
1. Assemble the DW 4020 components.  
2. Connect the DW4020 to the installer PC Ethernet and power  
up the DW4020. Use surge protectors.  
3. Connect the installer PC via USB and run Websetup to  
establish operating parameters and commission.  
4. Register the customer and select subscription options via  
Websetup.  
5. Record site ID and assigned IP address(es) for the customer  
on the cover of the User Guide.  
6. Transfer of parameter information to Gateway Host; Exit  
Websetup.  
7. Assemble and install the satellite antenna. Run cables from  
the outdoor components to the indoor equipment. Clearly  
label the receive and transmit coaxial cable at the antenna,  
ground block, and indoor units connectors.  
8. Complete pointing and ACP.  
9. Disconnect installer PC and connect the Gateway to the  
receive modem with the USB cable. Connect the customer  
computer equipment to the Gateway via Ethernet cable.  
10. Verify customer operation, information recorded on User  
Guide cover, and receive and transmit cable labeling.  
Optional: assist in customer computer configuration.  
The DW4020 can be used with the HNS DW4000 74cm  
Two-Way antenna. The DW4020 can also be used in conjunction  
with 98cm, 1.2m, and 1.8m antennas. Refer to the manufacturer’s  
antenna installation manual for instructions on how to install the  
antenna. See the About section for a list of antenna installation  
manuals. Follow all safety procedures. Cable requirements are on  
page 4.  
Antenna installation  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
6
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
CAUTION  
A password from the authorized installer is required before  
the National Operations Center will activate the system.  
CAUTION  
Professional installation and service of the antenna  
assembly is required by the Federal Communications  
Commission because the radio transmits radio frequency  
energy.  
• The two-way antenna assembly must be installed in a  
location or manner not readily accessible to children.  
• The two-way antenna assembly must be installed at  
least 5 feet (1.5 meters) above ground level or any  
nearby surface on which a person could sit or stand.  
CAUTION  
• The two-way satellite dish assembly emits radio  
frequency energy when in the transmit mode.  
• Unplug indoor power connection before performing  
maintenance or adding upgrades to any satellite dish  
components.  
• To avoid risk of injury, do not place head or other body  
parts between feed horn and reflector when system is  
operational.  
Prohibited area  
(when operational)  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
7
Download from Www.Somanuals.com. All Manuals Search And Download.  
The installation software for the DW4020 is on a CD. The  
software will enable you to register DW4020 customers. You  
need a receive modem (IRU) to install the software on your  
installer laptop PC.  
Installing DIRECWAY  
installation software on  
installer laptop  
Do not confuse the installation software with the software that is  
downloaded to the Gateway via satellite during registration. The  
DW4020 installation software enables you to register customers  
and configure the DW4020 for operation. The software that  
actually operates the DW4020 is downloaded during registration.  
It is important to understand that there are three service options:  
consumer, small office/home office, and enterprise. Each option  
has its own registration server that appears in the Websetup  
Welcome screen when you start Websetup to register a customer.  
You must be careful to choose the correct option. If in doubt  
consult the work order.  
For example, if you are installing a DW4020 for a SOHO  
customer, you would double-click on the registration server for a  
SOHO installation. If you click on one of the other servers, you  
will not be able to install the customer correctly.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
8
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Do not connect USB cable to the receive modem until prompted.  
You may use the cable that came with the unit, or a different cable  
if you need a longer one.  
Installing the software  
1. Load the installer software CD into your laptop computer.  
The installation wizard should appear. If it does not, select  
Start→Run, browse to the CD drive, select it, and select  
setup.exe.  
Figure 3: Installation screen  
2. Select Install Software. A Setup screen appears.  
3. Select Next. An Agreement screen appears.  
4. Select Yes. The Device Install Status screen in Figure 4  
appears.  
5. Connect the USB cable. The installation will complete and  
the Websetup Welcome screen appear. See Figure 5. If you  
are prompted for the location of your Windows .cab files,  
enter the location or insert your Windows installation CD,  
load the files, and re-insert the DIRECWAY installation CD.  
If you continue to see the Device Install Status screen, try the  
following:  
– Unplug the USB cable and plug it in again.  
– Verify you are using the correct power supply.  
– Try a different cable.  
– Troubleshoot your USB port.  
– Try a different receive modem.  
6. Select Exit.  
Note: If you are using Windows XP as the installer laptop  
operating system, the laptop may reboot after you attach the  
USB cable. If this occurs, unplug the USB cable and repeat  
the installation process after the laptop reboots.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
9
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Figure 5: Websetup Welcome screen  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
You need all the items shown in Figure 6. Some of them are in the  
modem installation kit or inside the antenna box.  
Installing the system  
using a modem  
If you are using Web commissioning, you must provide an  
Ethernet cable to connect between the DW4020 and installer PC.  
If Web commissioning is not available, you must provide a 9-pin  
female/female (F/F) null modem serial cable. The serial cable can  
be used to configure the DW4020 via the serial port. Appendix C  
– Installing the DW4020 Manually, on page 77.  
You will also need the installation work order. This is provided to  
you by HNS.  
Note: At some installation sites, the USB cable that comes with  
the DW4020 may not be long enough to reach from the installer  
PC to the DW4020. You may need a long USB cable.  
Read this manual and obtain serial cable and installation work order  
ual  
an  
This m  
Install Spec  
9-pin F-F serial cable  
Install specification  
Installation manual  
Ethernet cable  
These items are packaged in a small box inside your antenna box  
Clips  
Receive modem  
Transmit modem  
Gateway  
AC cord  
DC cord  
Power supply  
1031105-0001  
USB cable  
Power adapter  
25-pin connector cable  
Figure 6: Items required for installation  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
The DW4020 uses a power supply with the part number P/N:  
1031105-0001. The part number is on a sticker on the power  
supply. Verify that you are using the correct power supply. Do not  
use anything but the power supply supplied with the DW4020  
system (1031105-0001).  
The power supply  
Be sure the power supply is labeled ADP 64AB B in the upper  
right hand corner of the label, above the bar codes. See Figure 7.  
CAUTION  
• This unit’s performance may suffer if the wrong power  
supply is used.  
• This unit must be used with the power supply PN  
1031105-0001.  
• When power needs to be removed from the receive  
modem, ALWAYS unplug the AC power cord from either  
the wall outlet, surge protector, or power strip.  
• NEVER pull the power cord from the back of the receive  
modem. Doing so could damage the pins and also  
cause a short in the system.  
• Power supply with the part number 1031105-0001 is to  
be used only in the United States and Canada.  
• This unit must be used with 110-volt AC input.  
• Other countries may have different standards and  
requirements.  
PN: 1031105-0001  
ADP-64AB B  
Figure 7: ADP-64AB B above bar code  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Follow the steps below and refer to the illustrations on page 13  
through page 16 to assemble the DW4020 components. Note that  
some cables are connected to the installer laptop until  
commissioning is complete. Then the DW4020 is connected to  
the customer’s computer.  
Assembling the  
components, modem  
installation method  
Before beginning the installation, be sure that you have installed  
the installation software correctly. See Installing the software on  
page 9. In addition, confirm that DHCP is enabled to accept IP  
addresses automatically on your installer laptop PC. See  
Appendix D – on page 113.  
CAUTION  
• The components must be stacked in this order: Gateway  
on bottom; transmit modem on top of Gateway; receive  
modem on top of transmit modem. See Figure 10.  
• If the components are not stacked in the proper order, the  
receive modem may overheat and malfunction.  
• Do not block any ventilation openings. Do not install near  
any heat sources such as radiators, heat registers,  
ovens, stoves, or other apparatus (including amplifiers)  
that produce heat.  
• Recommended ventilation space around the top and  
sides of the DW4020 assembly should be approximately 6  
inches. Ventilation is necessary to avoid overheating.  
1. Be sure the power supply is not plugged into a wall outlet,  
surge protector, or power strip.  
2. Lay two of the four clips on a table and mount the  
components as shown in Figure 8. Mount the Gateway first,  
then the transmit modem, then the receive modem.  
3. Turn the component stack right side up and install the other  
two clips as shown in Figure 9.  
Note: The Gateway and the transmit modem have a hole at  
the center of each of their four feet. There is a tab on the  
bottom of each mounting clip, which snaps into place on the  
Gateway when properly aligned over the hole.There is also a  
tab in the middle of each mounting clip, which snaps into place  
on the transmit modem when properly aligned over the hole.  
4. Double-check that the components are installed in this order  
from top to bottom: receive modem, transmit modem,  
Gateway. See Figure 10.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Figure 8: Mount the components on two clips  
Figure 9: Attach the other clips  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Receive modem  
Transmit modem  
Gateway  
Figure 10: Component stack  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
5. Connect the component interconnection cables. See  
Figure 11. A USB cable connects the receive modem and the  
installer PC; you may use a longer cable rather than the one  
that is supplied if you wish. An Ethernet cable connects the  
Gateway and the installer PC. A 25-pin connector cable  
connects the transmit and receive modems. A power supply  
adapter cable provides power to the Gateway and receive  
modem. See Figure 11.  
Installer laptop PC  
Ethernet port  
Ethernet cable  
USB cable  
Receive  
modem  
25-pin connector  
cable  
Transmit  
modem  
Power supply  
adapter  
Gateway  
Four 10 Base - T/100 -  
network ports  
Figure 11: Attach interconnection cables  
6. Attach the power supply cords to the power supply and to the  
power adapter. Ensure that the power cord is tightly  
connected to the power supply, receive modem, and Gateway.  
See Figure 12.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Installer laptop PC  
Ethernet port  
AC power  
cord  
Ethernet cable  
USB cable  
Receive  
modem  
Transmit  
modem  
Power  
supply  
Gateway  
DC power  
cord  
Figure 12: Connect power cord  
After you assemble the DW4020, connect it to the installer laptop  
with Ethernet cable. Plug it into a 110 V wall outlet, power strip,  
or surge protector. The Gateway LED display will cycle. The  
cycle completes in less than a minute and follows this sequence:  
Connect Ethernet,  
power up, and read the  
Gateway LED display  
• Gateway STATUS LED is red until the power-on self-tests  
are completed.  
• Gateway READY LED blinks green because it is not yet  
commissioned.  
• Gateway STATUS LED blinks orange as it is not attached to  
the receive modem.  
Note: In countries outside North America, the DW4020 may be  
plugged, with a physical adapter, directly into a 220 V outlet.  
Different countries may have different standards and requirements.  
Note: Whenever the LEDs do not function properly as described  
below, check to be sure you have the correct power supply, PN  
1031105-0001.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
The transmit and receive modems have their own LEDs, which  
show their status. These are described in The modems’ LEDs on  
page 18.  
For more information on LEDs, troubleshooting, and LED  
blinking and status codes, see Chapter 4 – DW4020 LEDs and  
troubleshooting, on page 53.  
Note that normal Gateway operation alone doesn't imply normal  
DW4020 operation. The installation and commissioning process  
may not have been completed or software download (DLL) from  
the Network Operations Center (NOC) may not have been  
completed. Additional status information is available via the User  
Interface. See Chapter 3 – The User Interface, on page 33) and  
the LEDs on the receive and transmit modems. The modems’  
LEDs.  
Table 4: Gateway LED display  
LED condition  
STATUS LED  
Power off  
READY LED  
Off  
Power off or startup  
diagnostics not yet run  
successfully  
Steady Green  
Normal operation  
Running software  
downloaded from NOC;  
successfully  
commissioned  
Blinking Orange  
Contact between GWH Not applicable  
and IRU over USB not  
established; USB cable  
not installed or some  
other USB problem  
Blinking Green  
Steady Red  
Not applicable  
Power on tests  
Not commissioned  
Not applicable  
1. Restart the PC so that the Gateway assigns it an IP address.  
Or use the command ipconfig /renewfrom a DOS  
command line prompt.  
Obtain IP address and test  
Ethernet connection  
2. The embedded DHCP server assigns IP address =  
192.168.0.2 to the PC. The DW4020 Address is set to  
192.168.0.1.  
3. Make sure the PC can communicate with the DW4020 over  
the Ethernet connection. Enter Ping <192.168.0.1>at a  
DOS prompt.  
The receive and transmit modems have LEDs on their front  
panels. Both modems have a green READY LED. The receive  
modem has a green RX LED. The transmit modem has a green  
The modems’ LEDs  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
TX LED. The LEDs’ status indicate various conditions. Table 5  
describes the basic states.  
The LEDs may also indicate various conditions through blink  
patterns. The numbers in brackets are the status codes discussed  
in The System Status indicator on page 36.  
If the modem does not appear to be functioning, check all cable  
connections. If they are secure, cycle the power by unplugging  
the power cord at the power supply and plugging it back in. A  
number of conditions and corrective actions are described in  
Chapter 4 – DW4020 LEDs and troubleshooting, on page 53.  
The READY LEDs should come on steady when the DW4020 is  
powered up, commissioned, and when it is operating. The TX and  
RX lights can also blink when the DW4020 is first powered up, or  
when the DW4020 is power cycled. However, that blinking does  
not indicate anything about their status.  
Table 5: Basic Receive and Transmit Modem LED States  
Ready OFF/RX OFF  
Ready ON/RX Off  
Ready ON/RX  
blinking  
Receive modem  
Transmit modem  
Modem not functioning Modem functioning, no Modem functioning,  
data being received  
data being received  
Ready OFF/TX OFF  
Ready ON/TX Off  
Ready ON/TX blinking  
Modem not functioning Modem functioning, no Modem functioning,  
data being transmitted data being transmitted  
The DW4020 is extremely reliable. If you find you cannot surf  
the Internet or the DW4020 seems to have a problem, follow this  
sequence of steps below to identify and fix the problem.  
• Check whether the DW4020 LEDs are on or off. The LEDs  
may indicate that a connection has become loose.  
Reconnecting a cable or power cord may restore function.  
• Check if the LEDs are blinking in a pattern. The LEDs can  
blink in a pattern. The patterns correspond to the receive and  
transmit status codes discussed in Transmit Status messages  
on page 37 and Receive Status messages on page 42. See  
LED blinking indicating status codes on page 60 for a  
discussion of the blinking LEDs.  
• Check if the LEDs on the back of the Gateway or on or off.  
The LAN ports on the back of the Gateway have LEDs. See  
Ethernet port LEDs on page 20.  
• Contact technical support. If the corrective actions described  
in this chapter and Chapter 3 – The User Interface do not  
solve the problem, contact technical support.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Each of the four Ethernet ports on the DW4020 has two LEDs  
associated with it. One LED is green and one is yellow. See  
Figure 13.  
Ethernet port LEDs  
The green LED will be on if power is applied to the DW4020 and  
a 100baseT Ethernet device is connected to the corresponding  
Ethernet port. Otherwise, the green LED will be off.  
If the power is on and the light is off while a network device is  
connected, then the device is a 10baseT device and the port is  
autosensing.  
The yellow LED will also be on when power is applied to the  
DW4020. It will flash momentarily when there is LAN activity  
on the corresponding Ethernet port.  
Green LED  
Yellow LED  
Figure 13: Ethernet port LEDs  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
20  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
The DW4020 installer’s computer software is basically  
DIRECWAY 4.0 software with some functions, such as  
interacting with a browser, removed. It is used to run Websetup  
and commission the customer.  
Running the DW4020  
installation software,  
commissioning, and  
registering the  
There are three registration servers, one each for consumer, small  
office/home office, and enterprise. Before you select the  
registration server, check the work order and confirm which  
service option the customer has chosen.  
customer  
You will connect the installer laptop and receive modem, register  
the customer, peak the satellite signal, connect the customer’s  
DW4020, and confirm that they can surf the Internet.  
1. Connect the receive modem to the installer laptop PC with  
the USB cable.  
2. Connect the installer laptop PC to an analog telephone line  
or alternate connection to the Internet.  
3. Select Start→Programs→Direcway Installer→Websetup. The  
Welcome screen appears. Check the work order for the  
service option and highlight the proper registration server.  
The select Next. Follow the instructions on subsequent  
screens; the instructions below will supplement the onscreen  
instructions.  
If the Welcome screen does not appear, the receive modem is  
not connected to the PC or there is a problem with the receive  
modem installation. Check cable connections. If cable  
connections are not the problem, restart the PC. If that does  
not solve the problem, call technical support.  
Figure 14: Welcome screen; choose proper registration server  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
4. Websetup will first detect the Gateway and the modem. See  
Figure 15.  
5. Then Websetup will check for an existing connection to  
WebACS. Websetup may bring up a dial-up connection if  
necessary. See Figure 16.  
Figure 15: Websetup - Detection  
Figure 16: Dial up connection may be necessary  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
22  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Figure 17: Registration Connection - Authentication  
6. Websetup will then authenticate the receive modem serial  
number and enable it. See Figure 17.  
7. Websetup then presents a series of forms to the user to  
complete registration. See Figure 18 through Figure 20. The  
appearance of the forms may vary, and the forms’ content  
may change from time to time. For example, a SOHO  
customer Service Offerings screen shown in Figure 19will be  
different from a consumer screen.  
Figure 18: Agreement  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Figure 19: Service Offerings  
Figure 20: Registration  
Note: The registration information in Figure 20 is very  
important. Make certain this information is recorded on  
the cover of the customer’s User Guide. That way the  
customer will have important information available  
should their DW4020 not function and they need to call  
technical support.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
24  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
8. After the customer enters registration information, write the  
information in Figure 20 on the cover of their User Guide.  
9. Select Continue in the Registration screen in Figure 20. The  
Antenna Pointing - Antenna Location screen appears. See  
Figure 21.  
Figure 21: Enter ZIP code  
10. Verify that the ZIP code shown matches the ZIP code for the  
installation site. If not, correct it. Select Next. The Antenna  
Pointing - Receiver screen appears. See Figure 22. At this  
point it shows no signal strength or auto cross-pol checkbox.  
11. Click through all pointing screens by selecting Next. Click  
through until you reach the Websetup - Finish screen. You  
will finish registration before peaking the signal.  
Note: You must not disconnect the power cables before  
completing Step 13. Finish registration before peaking the signal.  
12. When the Websetup-Finish screen appears, Websetup  
receives a parameter file from the WebACS and transfers it to  
the DW4020 over the Ethernet connection. If it is successful,  
a message appears asking you to press Finish. See Figure 23.  
13. Select Finish. The unit is commissioned. A message may  
appear telling you to connect and reconnect the USB cable.  
Click OK. You do not need to do anything with the USB  
cable at this time.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Figure 22: Antenna Pointing - Receiver  
Figure 23: Finish  
Figure 24:  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
26  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
In post-commissioning, you peak the satellite signal, attach the  
DW4020 to the customer computer that has a functioning  
Ethernet interface, and confirm the customer can surf the Internet.  
Post-commissioning  
1. Unplug the DW4020 power cord from the wall outlet or surge  
protector.  
Peak the satellite signal  
2. Remove the phone line and network cable from the installer  
laptop PC.  
3. Remove the network cable from the Gateway and unplug the  
USB cable from the receive modem.  
4. Connect a long USB cable from the back of the receive  
modem to the installer laptop PC.  
5. Assemble and install the satellite antenna.  
6. Place the outdoor pointing interface (OPI) in the receive  
cable line if applicable.  
7. Power on the DW4020.Select Start→Programs→DIRECWAY  
Installer→Antenna Pointing. The Antenna Pointing - Antenna  
Location screen appears. See Figure 25.  
8. Verify the ZIP code matches the antenna location and select  
Next. The Antenna Pointing - Receiver screen appears. Check  
the Longitude, Hemisphere, and Frequency values. See  
Figure 26.  
Figure 25: Antenna Location; verify ZIP code  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
27  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Figure 26: Antenna Pointing - Receiver  
9. Use the Elevation, Azimuth and Polarization values to adjust  
the antenna to achieve maximum receive signal strength.  
10. Select the ACP (auto cross-pol) checkbox. If it is not  
available, wait five minutes; the system will update.  
11. Select Next to go to the Antenna Pointing - Transmitter  
screen. See Figure 27.  
Figure 27: Start manual cross-pol; pass and peak isolation  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
28  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
12. Select the Manual fine pointing mode radio button.  
13. Select Start Test. Adjust the antenna to achieve maximum  
transmit isolation.  
14. When the unit consistently passes the manual transmit test,  
bolt the antenna securely before going to Step 15.  
15. After the antenna is bolted, select Stop Test. See Figure 28.  
16. Then select the Automatic radio button and select Start Test  
to start the automatic ACP test. See Figure 29.  
17. Make sure the test passes.  
18. Select Exit after passing the test.  
Figure 28: Manual cross-pol passed; select Stop Test  
Figure 29: Auto cross-pol  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
29  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Figure 30: ACP passes; select Exit  
1. Disconnect the USB cable from the installer’s PC.  
2. Connect the receive modem to the Gateway using the USB  
cable supplied with the unit. See Figure 31.The DW4020 will  
re-initialize and come back up in normal mode.  
Connect to customer  
computer and confirm  
surfing  
3. Connect the receive coaxial cable to the receive modem and  
the transmit coaxial cable to the transmit modem. See  
Figure 31.  
4. Plug the power cord into the wall outlet or surge protector.  
5. Make sure that the READY LEDs on all three units are  
STEADY GREEN. Make sure the transmit and receive cables  
are clearly labeled at the connectors.  
6. The DW4020 is now commissioned. Connect the customer’s  
computer and the Gateway with Ethernet cable. See  
Figure 31. If the computer has a functioning and properly  
configured Ethernet interface, it will surf the Internet. If the  
customer cannot surf, see the instructions below.  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
30  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
If the customer cannot surf, configure your installer laptop so its  
network properties match the customer’s. Refer to Appendix D for  
exact instructions for setting your network properties. Then:  
If the customer cannot surf  
1. Start a Web browser on the installer laptop.  
2. Enter the Gateway IP address in the browser URL location  
bar and press Enter. If the DW4020 is functioning, the User  
Interface appears.  
3. Enter an URL for a known Web site, such as abc.com or  
cnn.com. If it appears, the DW4020 is functioning and any  
problem exists on the customers computer. The customer’s  
network properties may not be configured properly, or there  
may be some other system problem. They should consult the  
User Guide for support information.  
AC power  
cord  
Receive  
modem  
Transmit  
modem  
Power  
supply  
DC power  
cord  
Gateway  
Ethernet cables  
Short USB cable  
Figure 31: Final cabling  
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
31  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 2 • Installing the indoor equipment  
1031484-0001 Revision 2  
32  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3  
The User Interface  
In the Version 1.0 software, DW4020 status information was  
available on menus accessed through the serial port via  
Hyperterminal. In the Version 2.0 software, a browser-based User  
Interface provides information about system status, system  
configuration, online documentation, and firewall configuration.  
Access it if the DW4020 doesn’t seem to be functioning properly,  
to find system information for configuring networks, or to check  
system performance. Clicking on items highlighted in blue  
displays help information or other documentation.  
Note: The information about the DW4020 User Interface in this  
manual is the same as that in the DW4020 User Guide (HNS  
1032564-0001 Rev A). Each DW4020’s software is updated  
periodically via satellite link. The updates should be reflected in  
User Interface Help if they are not documented in the User Guide  
or in this manual. Always refer to User Interface Help and the  
latest revision of the User Guide, as well as this manual, for the  
latest information about the User Interface and DW4020 software.  
If at any time you are unable to access the User Interface, take the  
steps below:  
• Make sure the Gateway is powered up. The STATUS and  
READY LEDs should be lit continuously. If they are not,  
power cycle the DW4020 by unplugging the power cord from  
the wall outlet or surge protector, waiting 10 seconds, and  
plugging it back in. Refer to the Chapter 5 Troubleshooting  
for more information.  
• If the User Interface is still not accessible, check the Ethernet  
cable connection from the computer to the DW4020. Check  
that the power adapter is securely attached to the receive  
modem and Gateway. Also check the computer’s network  
configuration.  
• If the User Interface is still not available, contact technical  
support.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
33  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
How to access the User The User Interface is accessed through any browser, such as  
Internet Explorer or Netscape. Follow the steps below to set up an  
Interface  
entry for the User Interface in a browser. The steps are written for  
Internet Explorer or Netscape, but you can use a similar  
procedure for any browser.  
1. Go to Start→Programs→Internet Explorer (or Netscape). The  
browser interface appears.  
2. Place the cursor in the Internet Explorer Address bar or the  
Netscape Location Bar.  
3. Type the DW4020 IP Gateway address. The should have been  
written this on the front of this manual when the installer  
finished configuring the unit.  
4. Press ENTER. The User Interface Home screen appears. See  
Figure 32. .  
Figure 32: The User Interface Home screen  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
34  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
The Home screen has system indicators across the top. There are  
menu items in a column along the left. The system indicators  
consist of the following:  
The Home screen  
• System Status reports the strength of the receive signal, the  
status of the receive and transmit modems, and software  
download status. If System Status is colored green, the  
DW4020 is functioning properly. If there is a problem, it is  
colored red and the word “PROBLEM” appears below  
System Status. See Figure 33.  
• Receive Statistics reports data on receive modem  
functioning.  
• Transmit Statistics reports data on transmit modem  
functioning.  
• System Information provides information such as the  
Gateway IP address, subnet mask, site ID, and what features  
are enabled.  
Figure 33: System Status reports PROBLEM  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
35  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
The System Status  
indicator  
Clicking on System Status will display a System Status screen.  
See Figure 34.  
Figure 34: System Status screen  
The screen consists of the following fields.  
• Signal Strength - indicates the signal quality factor (SQF),  
which is the strength of the receive signal. If SQF is 30 or  
below, the antenna must be repointed by a certified  
professional installer.  
• Transmit Status - indicates the status of the transmit modem.  
• Receive Status - indicates the status of the receive modem.  
• Software Download Status - indicates the status of the  
downloading of software from the Network Operations  
Center (NOC). If the DW4020 has been commissioned, this  
message will generally indicate that software download has  
been completed. Occasional updates are automatically  
downloaded to the DW4020 from the NOC. The purpose of  
these updates is to enhance DW4020 performance.  
Remember that this software is not placed on the customer’s  
computer, but on the DW4020. No action is required from  
them. The software version number in the System  
Information page indicates the current version of the  
downloaded software. See System Information on page 45.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
36  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
If there is a problem with any of these four status elements, a red  
exclamation mark will appear in the status field. In addition, if  
there is a problem with the Transmit Status or Receive Status, an  
error message and an error code will appear in blue. You can click  
on the error message and an explanation of the error condition  
and what action might solve it will appear. See Figure 35. The  
tables below provide a more detailed explanation of status codes,  
error messages, and corrective actions.  
Figure 35: On-line help for status messages  
The following messages may appear in the Transmit Status field.  
The Comments section gives more information about each code,  
and describes any possible corrective measures. See Figure 36 on  
page 41 for corrective measure involving cables or the power  
supply. Power cycling means to unplug the power cord from the  
wall outlet or surge protector, wait 10 seconds, and plug it back  
in.  
Transmit Status messages  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
37  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
If corrective measures do not solve a problem, contact technical  
support.  
TxCode 8 means the transmit modem is working properly. It is  
the code you will see most of the time.  
Note: Remember that IRU refers to the receive modem, and that  
ITU refers to the transmit modem.  
Table 6: Transmit status (TxCode) messages and corrective actions  
Numeric  
TxCode  
Message Displayed  
Comments  
0
The transmitter is not  
connected to the receiver  
This status will occur only if the Indoor Transmit Unit (ITU) is not connected to  
the Indoor Receive Unit (IRU). It can result for the following reasons:  
• The 25-pin parallel cable is not properly connected to the Indoor Receive Unit  
or Indoor Transmit Unit: Check the cable and make sure the ends are securely  
fastened.  
• Indoor Transmit Unit failure. The Indoor Transmit Unit has failed and may need  
to be replaced.  
1
The transmitter has been  
disabled by the Network  
Operations Center  
This condition occurs when the transmitter is not enabled. A transmitter may be  
disabled for short periods of time by the NOC for service or troubleshooting. It  
may also be disabled if the user discontinues the satellite service. If this  
condition persists, it can only be corrected by requesting that the unit be  
enabled.  
2
3
The transmitter has been  
placed in test mode by the  
Network Operations Center  
This status requires no user action and this test usually completes in 15 minutes  
or less. This condition occurs when the NOC places the transmitter into special  
transmission modes to measure the performance of the transmitter. When in this  
mode, the unit is unable to transmit normal user data to the NOC.  
The transmitter is locking to  
the receive carrier  
This condition occurs during initial startup or when the receiver is locking to the  
receive signal. It is normal for this condition to persist for up to 10 seconds. If this  
condition  
persists for more than 10 seconds, try disconnecting and reconnecting the  
receiver coaxial cable and wait 10 seconds. If the situation still persists, then the  
Indoor Transmit Unit may need to be replaced.  
4
The transmitter is not  
This condition indicates that something is not operating properly in the  
responding to commands sent Receive/Transmit Unit configuration. Perform the following actions to attempt to  
from the receiver  
recover from this condition:  
• Verify that the Indoor Receive and Transmit Units are securely connected with  
a 25-pin parallel cable.  
• Reset the IRU by unplugging the IRU power cord from the wall socket and then  
plugging the power cord back into the wall socket. This will reset the Indoor  
Receive and Transmit Units.  
This condition could also be caused if the power supply is faulty. If this condition  
cannot be resolved by following the steps listed above, then you may need to  
replace the power supply, the Receive/Transmit unit cable and/or the Transmit  
Unit.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
38  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Table 6: Transmit status (TxCode) messages and corrective actions  
5
6
The transmitter is not locked to No action is necessary if this condition occurs from time to time and quickly  
the network timing  
resolves itself. If this issue persists, it is likely due to a NOC-related service  
issue. The condition may also be due to Indoor Transmit Unit failure; in rare  
cases, the Transmit unit may fail and may have to be replaced.  
The transmitter is not available Check your receive signal. This condition occurs when the Indoor Receive Unit is  
because the receiver is not  
detecting a signal or is not  
locked to the correct  
network  
not receiving a good signal. The receiver must be locked to the correct network  
in order for the transmitter to operate. If the receiver is not locked (no signal) or is  
locked to the wrong network, the transmitter is unable to transmit data. Please  
verify that you have a good signal strength by going to the Receive Statistics  
page. This could also be caused by inclement weather.  
7
The transmitter is not available This condition occurs when the transmitter is disabled for safety reasons. If this  
because the satellite receiver  
is not tuned for normal  
operation  
happens during installation or commissioning, the installer will close the Antenna  
Pointing program and resolve the condition.  
8
9
The transmitter is available  
This is the normal operational state and indicates that the transmitter is ready to  
transmit data.  
The transmitter is adjusting for This condition typically occurs when the DW4020 is first commissioned or the  
optimal network timing  
first time it is used for data traffic. This must occur before the Indoor Transmit  
Unit is able to transmit successfully. Typically, this process usually takes less  
than a minute.  
10  
11  
The transmitter is unable to  
This condition indicates that the unit has stopped attempting to transmit user  
communicate with the Network data because there were a number of failures in sending data to the NOC over  
Operations Center  
the satellite link. This could be the result of weather conditions causing lost  
packets or return channel equipment failures in the NOC.  
The transmitter is not available This condition indicates that the installed software version is not recent enough  
because the receiver software to operate on the network. New software will be required from time to time due to  
is out of date  
network infrastructure and capability upgrades and in order to maintain network  
efficiency and fix any known problems.The system will automatically update the  
software version to ensure that you can enjoy uninterrupted operation. If you do  
not use the DW4020 for a long period of time and miss the updates, you may  
need to contact Customer Care.  
12  
13  
The transmitter is not  
receiving network control  
messages from the Network  
Operations Center  
This condition indicates a NOC equipment outage. This may be a transient  
condition and the system should recover automatically.  
The transmitter is unable to  
range because it cannot  
communicate with the  
Ranging is the process that adjusts the satellite transmitter timing and  
power. The satellite transmitter conducts ranging as needed to ensure  
that it can communicate successfully with the Network Operations  
Center.This condition can indicate any of the following:  
• The NOC is not receiving ranging information from the transmitter. This may  
indicate a transmit problem at the NOC. This should get cleared in a few  
minutes.  
Network Operations Center  
• The transmitter is unable to achieve enough transmit power to send ranging  
information to the NOC. Make sure that the power supply is correct. The power  
supply should be Part #1031105-0001.  
• The transmitter is sending incorrect timing data because the wrong zip code or  
latitude/longitude information was entered during installation.  
• The outdoor transmitter unit (ODU)--that is, the antenna--is not operating  
properly or is not properly connected to the ITU. Please ensure that the  
transmit cable is securely fastened to the Transmit Unit.  
Chapter 3 • The User Interface  
39  
1031484-0001 Revision 2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Table 6: Transmit status (TxCode) messages and corrective actions  
14  
The transmitter is not available This condition indicates that the transmitter is not operational because ranging  
because ranging has failed  
has failed. Ranging is the process that adjusts the satellite transmitter timing and  
power. The satellite transmitter conducts ranging as needed to ensure that it can  
communicate successfully with the Network Operations Center. The ranging  
failure may happen due to the antenna becoming misaligned or if repeated  
attempts to range do not succeed. This condition may also be caused due to  
adverse weather conditions. In rare cases, this may also indicate NOC issues  
but should clear within a few minutes.If the system was operational in the past  
and you see these messages repeatedly, you can try to force range by  
performing the Connectivity Test.  
15  
16  
17  
The transmitter is waiting for a This condition occurs if the system is busy adjusting power and timing for other  
ranging request to be  
processed by the Network  
Operations Center  
users. This process may take up to a minute or more.  
The transmitter is waiting for a This condition occurs when the system is unable to provide transmit bandwidth.  
transmit request to be  
processed by the Network  
Operations Center  
This occurs when many users sign-on simultaneously. It should clear in a few  
minutes automatically.  
The satellite transmitter is  
unable to obtain an available  
transmission rate  
This condition occurs if the transmitter cannot successfully range. Ranging is the  
process that adjusts the satellite transmitter timing and power. The satellite  
transmitter conducts ranging as needed to ensure that it can communicate  
successfully with the Network Operation Center. A possible cause is that the  
transmitter could not achieve enough power to transmit. This is likely caused  
because the antenna is not accurately pointed. However, it may also be a  
transmitter power problem. Check the power supply and make sure that it is Part  
# 1031105-0001.  
18  
The transmitter is requesting a This condition can occur during installation when the Antenna Pointing program  
transmit pointing test  
on the installation computer requests that the transmitter perform a transmit  
pointing test. This condition persists until the NOC responds that the transmitter  
is either actively performing the pointing test or is queued to perform the test  
when test resources become available in the NOC. This is a normal condition for  
initial installation. The transmitter may also periodically go into this condition for  
short periods of time (less than 5 seconds) to perform periodic transmit pointing  
tests. These periodic tests are performed to ensure that the antenna is pointed  
accurately.  
19  
20  
The transmitter is queued for a This condition can occur during installation when the Antenna Pointing software  
transmit pointing test  
on the installation computer requests a transmit pointing test and the NOC has  
responded that the transmitter is queued for the next available test time. It may  
also occur when the transmitter is performing periodic background transmit  
pointing tests at the same time that other users on the network have requested  
tests. This is a normal state after initial installation.  
The transmitter is performing a This condition occurs when one of the following tests are active:  
transmit pointing test  
• During installation, the Antenna Pointing software requests that the transmitter  
perform a transmit pointing test. This condition will persist until the Antenna  
Pointing software exits from the transmit pointing test mode.  
• The DW4020 performs a periodic background transmit pointing test to make  
sure that the antenna is still pointed correctly. This periodic test takes less than  
5 seconds.  
If the problem persists, try power-cycling the DW4020 by unplugging the wall  
outlet and plugging it back in.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
40  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Table 6: Transmit status (TxCode) messages and corrective actions  
21  
22  
The transmitter is disabled  
because a transmit pointing  
test failed  
This condition occurs when the transmitter fails a transmit pointing test. This  
indicates that the transmitter did not meet the minimum specifications required.  
This is likely due to an antenna installation problem. The antenna installer needs  
to fine-point the antenna. The transmitter will not transmit until the transmit  
pointing test passes.  
The transmitter is disabled  
pending a transmit pointing  
test  
This condition occurs when the transmitter is required to perform a periodic  
background transmit pointing test, but has not been able to perform the test  
within the time window required. The transmitter is expected to be in this  
condition for no more than two minutes at random periodic intervals. This  
condition can also occur after the transmitter is first powered on after it has been  
powered off for more than a day. If the unit remains in this condition for more  
than two minutes, then the automated transmit pointing components in the NOC  
are likely experiencing problems. This condition should clear in a few minutes.  
23  
The transmitter is disabled  
because a transmit pointing  
test cannot be performed  
This condition occurs when the transmitter cannot perform the transmit pointing  
test when initially installed or when the transmitter is required to range. The  
condition indicates that the NOC components needed to perform the transmit  
pointing test are not operational.  
AC power  
cord  
Receive  
modem  
Transmit  
modem  
Power  
supply  
DC power  
cord  
Gateway  
Ethernet cables  
T0091013  
Figure 36: DW4020 connections  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
41  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
CAUTION  
Never unplug the power cord from the DW4020 while it is powered  
on. Always disconnect the power cord from the power supply, wall  
outlet, or surge protector.  
The following messages may appear in the Receive Status field.  
The Comments section gives more information about each code,  
and describes any possible corrective measures. See Figure 36 on  
page 41 for corrective measure involving cables or the power  
supply. Power cycling means to unplug the power cord from the  
wall outlet or surge protector, wait 10 seconds, and plug it back  
in.  
Receive Status messages  
If corrective measures do not solve a problem, contact technical  
support.  
RxCode 5 means the receive modem is working properly. It is the  
code you will see most of the time.  
Note: Remember that IRU refers to the receive modem, and that  
ITU refers to the transmit modem.  
Table 7: Receive code (RxCode) messages and corrective actions  
Numeric  
RxCode  
Message Displayed  
Comments  
0
The receiver is not connected  
Please make sure that the Indoor Receive Unit is connected to the  
Gateway via the USB cable. If the cable is connected and you still  
see this message, use the following steps for troubleshooting:  
• Make sure the power supply is correct. The power supply should  
be Part # 1031105-0001.  
• Try power-cycling the DW4020 by unplugging the power cord  
from the wall outlet and then plugging it back in.  
• Try using a different USB cable.  
• If none of the above resolve the issue, you may need to replace  
the Indoor Receive Unit.  
1
2
The receiver is in pointing mode  
This condition indicates that the installer is performing antenna  
pointing. In this mode, the transmitter is disabled for safety  
reasons since the installer is working near the dish. If this occurs  
during normal operation, try power-cycling the DW4020 by  
unplugging the power cord from the wall outlet and then plugging  
it back in.  
The receiver is in factory or NOC mode  
This status is for DW4020 testing purposes only. You should never  
see it. If this occurs during normal operation, try power-cycling the  
DW4020 by unplugging the power cord from the wall outlet and  
then plugging it back in.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
42  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Table 7: Receive code (RxCode) messages and corrective actions  
3
The receiver is not locked to a signal  
If the DW4020 had been operating previously, this status is  
probably due to inclement weather conditions and will be  
corrected when the weather improves. This condition can also  
indicate that the IRU is unable to receive the signal from the NOC.  
This is also associated with a signal level less than 30. This  
occurs if there is a weather outage at the user location, a NOC  
outage due to inclement weather or other reasons, a misaligned or  
faulty antenna, or faulty cabling. If this keeps happening under  
normal weather conditions, make sure the power supply is correct.  
The power supply should be Part # 1031105-0001. If the power  
supply is correct, try power-cycling the DW4020 by unplugging the  
power cord from the wall outlet and then plugging it back in.  
4
The receiver is locked to the wrong network This condition should only be seen during installation and occurs  
when the receiver is locked to a signal, but the signal ID does not  
match the ID that was assigned to the user during commissioning  
or the ID that was entered by the installer during manual pointing.  
If this occurs during normal operation, it may be due to the user  
changing acquisition parameters, including frequency and/or  
location of satellite, or the antenna becoming misaligned.  
5
6
The receiver is operational  
This is the normal operating state where the receiver is receiving  
data from the NOC. Only when the receiver is in this state will the  
transmitter operate correctly.  
The receiver is not detecting a signal  
This condition occurs when the IRU is not detecting any type of  
radio signal from the antenna. This could indicate that the cabling  
between the receiver and the antenna is faulty or that the receiver  
itself is faulty. Check that the cables are firmly connected on the  
DW4020. Also, make sure that the power supply is correct. The  
power supply should be Part # 1031105-0001. Try power-cycling  
the DW4020 by unplugging the power cord from the wall outlet  
and then plugging it back in.  
7
The receiver is locked to an unknown  
network  
This condition should only be seen during installation and occurs  
when the receiver is locked to a signal but there is no DIRECWAY  
Network ID on that signal. If this occurs during pointing or  
commissioning, the antenna has not been pointed correctly. If it  
occurs during normal operation, it may be due to the user  
changing acquisition parameters, including frequency and/or  
location of satellite, or the antenna becoming misaligned. The  
former condition can be corrected by re-commissioning the site.  
The latter requires an antenna repointing.  
The Receive Statistics screen contains information about how  
the receive modem is processing frames. It contains the following  
fields. See Figure 37.  
Receive Statistics  
• Receive Status - displays receive modem status messages.  
Click on Receive Status to view a list of receive status  
messages. Click on a receive status message to learn more  
about it.  
Chapter 3 • The User Interface  
43  
1031484-0001 Revision 2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
• Frames Received - displays the number of frames the receive  
modem has received.  
• Frames with Errors- displays the percentage of bad frames  
received.  
• Bad Key Frames - packets received over satellite that could  
not be decrypted successfully. A non-zero value indicates  
commissioning problems. (Clicking on the field will display  
this definition in the Web interface.)  
Figure 37: Receive Statistics screen  
The Transmit Statistics screen contains information about how  
the transmit modem is processing transmissions. It contains the  
following fields. See Figure 38.  
Transmit Statistics  
• Transmit Status - displays receive modem status messages.  
Click on Transmit Status to view a list of transmit status  
messages. Click on a transmit status message to learn more  
about it.  
• Number of Successful Transmissions- displays the number of  
successful transmissions.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
44  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
• Number of Failed Transmissions- number of times the ITU  
failed to transmit data.  
• Number of Packets Submitted for Transmission- number of  
packets submitted to the transmit modem.  
Figure 38: Transmit Statistics screen  
System Information  
The System Information screen displays a number of fields.  
While all the information may be useful at some time, the most  
important is discussed below.  
Note: Print the System Information screen and give it to the  
customer. It will be helpful should they need to call Customer  
Care and not be able to access the User Interface.  
• Gateway section  
– Commissioned - displays whether the DW4020 is  
commissioned.  
– IP Address - use this as the default Gateway on the  
computers connected to the DW4020.  
– Subnet Mask - use this as the default Gateway on the  
computers connected to the DW4020.  
• Indoor Receive Unit (Receive Modem) section  
– Serial number - needed to identify customer’s receive  
modem when troubleshooting.  
• Satellite Transponder section  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
45  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
– Longitude - displays the satellite’s longitude.  
– Receive Polarization - polarization orientation.  
• Software Configuration section- WEB Acceleration, NAT,  
and DHCP are enabled or disabled as per a customer’s  
service offering and cannot be changed by the customer.  
– Web Acceleration -Allows fast access to Internet  
Web sites and high-speed data download from the Internet.  
– Network Address Translation (NAT)- typically  
used to allow multiple computers to share a single address  
on the Internet. It also allows preconfigured remote  
networks to be integrated easily with the DIRECWAY  
network.  
– Dynamic Host Configuration Protocol (DHCP)  
if enabled, this simplifies the network configuration of the  
computers. The computers just need to be set up to “Obtain  
IP address automatically.”  
– Firewall - can be enabled by the user and configured to  
help deflect unwanted Internet traffic.  
Figure 39: System Information; print and save this screen  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
46  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
You may lose connectivity to a particular server due to the  
Internet and/or the satellite network being heavily loaded or due  
to the server being down. If possible, check connectivity to some  
other server on the Internet to ensure it is not a server specific  
problem. Follow the procedure below for troubleshooting:  
The Connectivity Test  
Menu  
Use the Connectivity Test from the left pane to check  
connectivity to the DIRECWAY NOC.  
Network Operations Center  
(NOC) Connectivity  
Note: You may want to open a second browser window to be able  
to access this help page while conducting the Connectivity Test.  
1. Click on Connectivity Test on the left hand side of the User  
Interface. The screen in Figure 40 appears.  
2. Run the test. A message will appear, informing you if the test  
was successful.  
If the connectivity test succeeds, try pinging the NOC Router  
Address from the computer. This address can be obtained  
from the System Information page. See System Information  
on page 45.  
If this succeeds, skip to the Internet Connectivity test below.  
If this fails, the default gateway is probably not set correctly  
on the computer’s network settings. The default Gateway  
should be the Gateway IP address. Fix this in the computer's  
network settings and repeat the connectivity test.  
If the test still fails, power-cycle the DW4020 by unplugging  
the power cord from the wall outlet and plugging it back in. If  
this doesn't fix the problem, call Customer Care.  
If the connectivity test fails, check the DW4020 configuration  
via the System Information page.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
47  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Figure 40: Connectivity Test  
Try pinging the DIRECWAY Internet server  
(www.direcway.com).  
Internet Connectivity  
Note: If you are an enterprise customer and your enterprise has a  
backbone connection to the Network Operations Center, the  
DIRECWAY Internet server may not be accessible. In such a case,  
you should try to ping your enterprise's Internet server.  
If pinging succeeds, the problem is probably in the particular  
server that you were trying to access or there may be a temporary  
Internet or your enterprise's backbone connection outage. Please  
try repeating the test after sometime.  
If pinging fails, check your DNS Server settings in System  
Information. If you are using the DIRECWAY DNS Server, make  
sure the DNS Settings include the "198.77.116.8" address. If you  
are a business customer contact your System Administrator.  
If this problem persists, please contact Customer Care for further  
assistance.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
48  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
The Firewall Menu  
The User Interface enables customers to enable a firewall and  
configure its rules. If they use the firewall, they must configure it  
properly for maximum protection. They should be aware that  
even an optimally configured firewall cannot be guaranteed to  
keep out all potentially harmful traffic.  
A discussion of the principles applied when setting up a firewall  
is in the DW4020 User Guide (HNS 1032564-0001). There is  
also a great deal of information in the FAQ section of the Web  
interface Help menu.  
Note: It is important to remember that the firewall checks  
inbound packets only. If you want to check outbound packets,  
you must obtain another firewall and install it on the network or on  
selected hosts on the network.  
The firewall allows configuration of up to 10 rules for blocking  
packets received over the satellite link. Five port numbers or 5  
protocol types in each rule. Which Source IP Addresses are  
examined for each rule can also be specified. The table below lists  
some common port numbers and protocols.  
The Settings Menu  
1. Open the User Interface and go to Home→Firewall→Settings.  
The screen in Figure 41 appears.  
2. Select the Enable Firewall checkbox to enable the firewall.  
3. Determine which rule number you want to create or modify.  
4. Select a rule type.  
5. Select a port or protocol number.  
6. Type the source IP address that you want the firewall to check  
for.  
7. You can leave the subnet mask set at 255.255.255.255. Set  
the Subnet Mask to 0.0.0.0 if you would like to block access  
from everywhere in a particular rule.  
8. Click on the Save Configurations button to save the firewall  
settings.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
49  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Figure 41: Firewall Settings  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
50  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Table 8: Port numbers and protocols  
Port Number  
Internet Application or Protocol  
Echo  
7
21  
FTP control port  
23  
Telnet  
25  
Simple Mail Transfer Protocol (SMTP)  
Domain Name Server (DNS)  
Gopher  
53  
70  
79  
Finger  
80  
Hyper Text Transfer Protocol (HTTP)  
Remote Telnet Service (RTELNET)  
Post Office Protocol - Version 3 (POP3)  
Network News Transfer Protocol (NNTP)  
Internet Relay Chat (IRC)  
107  
110  
119  
6667  
The Help Menu contains information about receive and transmit  
modem status messages, the firewall, installation,  
troubleshooting, and other topics. Review it to become familiar  
with the User Interface and with the DW4020. Access it by  
clicking on Help.  
The Help Menu  
Note: Print the answer to the entry in the User Interface  
Troubleshooting page, “I am unable to access the DW4020 Web  
interface. Ping doesn’t work also.” The information on this page  
will help you if you cannot access the User Interface.  
Figure 42: Help Menu  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
51  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
myDIRECWAY  
Customers can click on myDIRECWAY to go to  
myDIRECWAY.com. Members get access to a variety of  
interactive tools and can check usage online, test satellite speed,  
manage passwords, and more.  
myDirecway.com is not an installer resource.  
Software updates and  
the User Interface  
The DW4020 software will be updated periodically to provide  
access to new features and for performance enhancements. Any  
updates that are not discussed in the User Guide can be found on  
the What's New page in the DW4020 User Interface. The link to  
this page will be available from the User Interface Home page  
and also from the FAQ page.  
Chapter 3 • The User Interface  
1031484-0001 Revision 2  
52  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 4  
DW4020 LEDs and troubleshooting  
The DW4020 LEDs can provide information for troubleshooting  
units that aren’t functioning at all, or don’t seem to be functioning  
as well as they might. The LEDs can show modem or Gateway  
operational status--whether they are connected, powered up, or  
working at al. The LEDs can also blink in patterns that  
correspond to the TxCode and RxCode discussed in The System  
Status indicator on page 36. Finally, the Gateway Ethernet ports  
have LEDs that indicate their status.  
The DW4020 LEDs  
The receive modem has a RX and a READY LED. The transmit  
modem has a TX and a READY LED. The Gateway has a  
STATUS and READY LED.  
Note: Whenever the LEDs do not function properly as described  
below, check to be sure you have the correct power supply, PN  
1031105-0001.  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
53  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
This section describes the LEDs’ appearance during typical  
DW4020 operation. It also describes their appearance when some  
basic problem is occurring.  
DW4020 LEDs status  
When the DW4020 is powered on but not receiving or  
transmitting data, it appears as shown in Figure 43. The modems’  
READY LEDs are continuously lit. Both the Gateway LEDs are  
continuously lit.  
Normal operation, no  
transmit or receive  
Modems’ READY  
LEDs continuously lit  
Both Gateway LEDs  
continuously lit  
Figure 43: DW4020 normal operation, no data received or transmitted  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
54  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
During normal DW4020 operation, the modems’ READY LEDs  
are continuously lit, the RX and TX LEDs blink as they pass data,  
and both the Gateway LEDs are continuously lit, as shown in  
Figure 44.  
Normal operation, data  
being sent and received  
RX LED blinks as  
modem passes  
data; READY  
LED on  
continuously  
TX LED blinks as  
modem passes  
data; READY  
LED on  
continuously  
Gateway STATUS  
and READY LEDs  
continuously lit  
Figure 44: Normal operation, data being sent and received  
If the DW4020 is not operating normally and the receive  
modem’s READY LED is not lit, as shown in Figure 45, take the  
following steps:  
Problem: receive modem  
READY LED not on  
• Check to make sure the power cord is securely attached to the  
receive modem and plugged into the wall outlet or surge  
protector. See Figure 46. If the power cord was loose, the  
receive modem READY led will come on when power is  
restored.  
• If securing the power cord does not solve the problem, check  
all cable connections. Tighten any that seem loose.  
• If the Receive modem READY LED still does not come on,  
power cycle the DW4020 by unplugging the power cord from  
the wall outlet or surge protector, waiting ten seconds, and  
plugging it back in.  
• If the problem persists, contact technical support.  
Note: Often, if the receive modem READY LED is not lit, the  
other modem LEDs will not be lit either.  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
55  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Receive modem READY LED  
not lit. Note that in many  
cases other modem LEDs  
will not be lit either.  
Figure 45: Receive modem READY LED not lit  
AC power  
cord  
Receive  
modem  
Transmit  
modem  
Power  
supply  
DC power  
cord  
Gateway  
Ethernet cables  
T0091013  
Figure 46: DW4020 power and cable connections  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
56  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
If the transmit modem is not operating normally and its READY  
LED is not lit, as shown in Figure 47, take the following steps.  
Transmit modem READY  
LED not lit  
• Check that the receive modem READY LED is continuously  
lit. If not, try the sequence in Problem: receive modem  
READY LED not on on page 55.  
• Check that the 25-pin connector is attached securely. See  
Figure 46.  
• Check to make sure the power cord is securely attached to the  
receive modem and plugged into the wall outlet or surge  
protector. See Figure 46. If the power cord was loose, the  
transmit modem READY led may come on.  
• If securing the power cord does not solve the problem, check  
all cable connections. Tighten any that seem loose.  
• If the transmit modem READY LED still does not come on,  
power cycle the DW4020 by unplugging the power cord from  
the wall outlet or surge protector, waiting ten seconds, and  
plugging it back in.  
• If the problem persists, contact technical support.  
Receive modem READY LED  
continuously lit, showing that it is  
functioning  
Transmit modem READY LED  
not lit  
Figure 47: Transmit modem READY LED not lit  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
57  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
If the Gateway does not seem to be functioning and its LEDs are  
not lit, and the receive modem READY LED blinks as shown in  
Figure 48, take the following steps.  
Gateway LEDs not lit  
• Check to make sure the power cord is securely attached to the  
Gateway and receive modem and plugged into the wall outlet  
or surge protector. See Figure 46. If the power cord was  
loose, the Gateway and receive modem READY LEDs will  
come on when power is restored.  
• If securing the power cord does not solve the problem, check  
all cable connections. Tighten any that seem loose.  
• If the Gateway READY LED still does not come on, power  
cycle the DW4020 by unplugging the power cord from the  
wall outlet or surge protector, waiting ten seconds, and  
plugging it back in.  
• If the problem persists, contact technical support.  
Receive modem READY  
LED blinks  
Gateway LEDS are  
not lit  
Figure 48: Gateway LEDs not lit  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
58  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
If the Gateway does not seem to be functioning and its STATUS  
LED flashes amber, and the receive modem READY LED blinks  
or is not lit, as shown in Figure 48, take the following steps.  
Gateway LEDs flash, receive  
modem READY LED off or  
flashing  
• Check to make sure the USB cable is securely attached to the  
Gateway and receive modem. See Figure 46. If the cable was  
loose, the Gateway and receive modem READY LEDs will  
come on when it is reattached.  
• If securing the USB cable does not solve the problem, check  
all cable connections. Tighten any that seem loose.  
• If the Gateway STATUS LED still does not come on  
continuously, power cycle the DW4020 by unplugging the  
power cord from the wall outlet or surge protector, waiting  
ten seconds, and plugging it back in.  
• If the problem persists, contact technical support.  
Receive modem READY  
LED blinks or is not lit  
Gateway STATIS LED  
blinks amber  
Figure 49: Gateway STATUS LED blinks amber  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
59  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
The DW4020 modems’ READY LEDs can blink in various  
patterns. These patterns correlate to the status codes discussed in  
Transmit Status messages on page 37 and Receive Status  
messages on page 42. If you can see the patterns, you also have  
access to the User Interface. It will be easier to find out what the  
status of the DW4020 is via the interface than the LED status  
blinking. The blink patterns are described below for your  
information.  
LED blinking indicating  
status codes  
Transmit  
READYLED  
Pattern  
Corresponding transmit status messages  
Off  
On  
4(or powered off)  
8
1
2 Long,  
1 Short  
2 Long,  
2 Short  
2
2 Long,  
3 Short  
11  
3
1 Long,  
1 Short  
1 Short  
2 Short  
3 Short  
4 Short  
5
10, 13, 14, 15,16, 21, 22, 23  
6, 7  
12, 17  
Slow  
9,18,19,20  
Alternating  
Fast  
Alternating  
The ITU interface testing – This is a continuous fast blinking pattern, with the Transmit LED being the  
inverse of the Ready LED. No corresponding message.  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
60  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Receive  
READY LED  
Pattern  
Corresponding receive status message  
Fast  
Alternating  
Prior to downloading software– This is a continuous fast-blinking pattern, with the RX LED being the inverse  
of the Ready LED. No corresponding message.  
Slow  
1
Alternating  
On  
5
1 Long,  
1 Short  
3,6  
1 Long,  
2 Short  
4,7  
1 Short  
0
2
1 Long,  
1 Short,  
1 Long  
Table 9: Receive modem READY LED blink patterns  
Chapter 4 • DW4020 LEDs and troubleshooting  
61  
1031484-0001 Revision 2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Each of the four Ethernet ports on the DW4020 has two LEDs  
associated with it. One LED is green and one is yellow. See  
Figure 50).  
Ethernet port LEDs  
The green LED will be on if power is applied to the DW4020 and  
a 100baseT Ethernet device is connected to the corresponding  
Ethernet port. Otherwise, the green LED will be off.  
If the power is on and the light is off while a network device is  
connected, then the device is a 10baseT device and the port is  
autosensing.  
The yellow LED will also be on when power is applied to the  
DW4020. It will flash momentarily when there is LAN activity  
on the corresponding Ethernet port.  
Green LED  
Yellow LED  
Figure 50: Ethernet port LEDs  
Chapter 4 • DW4020 LEDs and troubleshooting  
1031484-0001 Revision 2  
62  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Glossary  
D
H
Dotted decimal notation - An IP address  
Host - In packet- and message-switching  
consists of 32 bits. Rather than working with 32  
bits at a time, it is a common practice to segment  
the 32 bits of an IP address into four 8-bit fields  
called octets. Each octet is converted to a  
decimal number (the Base 10 numbering  
system) in the range 0-255 and separated by a  
period (a dot).  
communications networks, the collection of  
hardware and software that makes use of packet  
or message switching to support user-to-user,  
i.e., end-to-end, communications, interprocess  
communications, and distributed data  
processing. More simply, any computer that has  
full two-way access to other computers on the  
Internet.  
Dynamic Host Configuration Protocol (DHCP) -  
a communications protocol that lets network  
administrators manage centrally and automate  
the assignment of Internet Protocol (IP)  
addresses in an organization's network.  
I
Internet Assigned Numbers Authority (IANA) -  
the organization that has overseen the allocation  
of Internet Protocol addresses to Internet service  
providers (ISPs).  
.
E
Internet protocol (IP) - The method or protocol  
by which data is sent from one computer to  
another on the Internet. Each computer (known  
as a host) on the Internet has at least one IP  
address that uniquely identifies it from all other  
computers on the Internet. The protocol within  
TCP/IP that governs the breakup of data  
messages into packets, routing the packets from  
sender to destination network and station, and  
reassembling the packets into the original data  
messages at the destination.  
Enterprise - an entity autonomously operating a  
network using TCP/IP and in particular  
determining the addressing plan and address  
assignments within that network.  
G
Gateway - the receive modem, the transmit  
modem, and the Gateway host when cabled  
together form the Gateway. Also called the  
DW4020.  
Internet service provider (ISP) - A business that  
supplies Internet connectivity services to  
individuals, businesses, and organizations.  
Some ISPs are large national or multinational  
corporations that offer access in many locations,  
while others are limited to a single city or  
region.  
Gateway host - downloads code to the IRU,  
performs PEP and decompression functions, and  
monitors and controls the operation of the  
IRU/ITU. In addition, the Gateway host  
supports configuration, status monitoring, and  
commissioning using a "dumb terminal"  
connected to an asynchronous serial port.  
• Glossary  
1031484-0001 Revision 2  
63  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
IP address - a 32-bit number that identifies each  
sender or receiver of information that is sent in  
packets across the Internet. An IP address has two  
parts: the identifier of a particular network on the  
Internet and an identifier of the particular device  
(which can be a server or a workstation) within  
that network. On the Internet itself - that is,  
between the router that move packets from one  
point to another along the route - only the network  
part of the address is looked at.  
R
Receive modem - downloads data from the  
satellite. Also known as indoor receive unit  
(IRU).  
Router - a device or, in some cases, software in a  
computer, that determines the next network  
point to which a packet should be forwarded  
toward its destination.  
S
L
Signal quality factor (SQF) - an integer value  
from 0-99 that indicates the strength of the  
received satellite signal relative to noise.  
Local area network (LAN) - a group of  
computers and associated devices that share a  
common communications line and typically  
share the resources of a single processor or  
server.  
Subnet mask - a 32-bit value that is used to  
distinguish the network ID from the host ID in  
an arbitrary IP address. Each host on a network  
requires a subnet mask.  
N
National Operations Center - A place from  
which a network is supervised, monitored, and  
maintained.  
T
TCP/IP internet protocol suite - the basic  
communication language or protocol of the  
Internet.  
Network Address Translation - a method of  
connecting multiple computers to the Internet  
(or any other IP network) using one IP address.  
TCP spoofing - technique of using local devices  
to answer TCP overhead messages. Also known  
as Turbo Internet.  
P
Performance enhancing proxy (PEP) - modules  
that provide TCP acceleration. PEP is used to  
improve the performance of the Internet  
protocols on network paths where native  
performance suffers due to characteristics of a  
link or subnetwork on the path.  
Transmission control protocol (TCP) - a set of  
rules (protocol) used along with the Internet  
Protocol (IP) to send data in the form of  
message units between computers over the  
Internet. While IP takes care of handling the  
actual delivery of the data, TCP takes care of  
keeping track of the individual units of data  
(called packets) that a message is divided into  
for efficient routing through the Internet.  
Private IP addressing - A computer on the  
Internet is identified by its IP address. In order  
to avoid address conflicts, IP addresses are  
publicly registered with the Network  
Information Centre (NIC). Computers on private  
TCP/IP LANs however do not need public  
addresses, since they do not need to be accessed  
by the public. For this reason, the NIC has  
reserved certain addresses that will never be  
registered publicly. These are known as private  
IP addresses.  
Transmit modem - sends (uploads) data to the  
satellite. Also known as indoor transmit unit  
(ITU).  
• Glossary  
1031484-0001 Revision 2  
64  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Turbo Internet - A high-speed satellite link from  
the Internet, allowing users to download  
information at a very high rate. Turbo Internet  
services provide asymmetric connections  
between a customer PC and the Internet. This  
enables users to download very large files at a  
very high rate of speed.  
• Glossary  
1031484-0001 Revision 2  
65  
Download from Www.Somanuals.com. All Manuals Search And Download.  
• Glossary  
1031484-0001 Revision 2  
66  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Abbreviations and Acronyms  
Abbreviation  
Term  
or Acronym  
DHCP  
GWH  
IANA  
IP  
dynamic host configuration protocol  
Gateway host  
Internet Assigned Numbers Authority  
Internet protocol  
IRU  
indoor receive unit  
ISP  
Internet service provider  
indoor transmit unit  
ITU  
LAN  
NAT  
NMC  
NOC  
OPI  
local area network  
network address translation  
network management center  
network operations center  
outdoor pointing interface  
performance enhancing proxy  
receive  
PEP  
RX  
SDL  
TCP  
TCP/IP  
TX  
software download  
transmission control protocol  
transmission control protocol/Internet protocol  
transmit  
• Abbreviations and Acronyms  
1031484-0001 Revision 2  
67  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
• Abbreviations and Acronyms  
1031484-0001 Revision 2  
68  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix A  
Lat/Long Decimals to Minutes Table  
Use the following procedure to determine your latitude and  
longitude decimal to minutes conversion.  
1. Enter the whole number part of the site's longitude into the  
VSAT Longitude in degrees field in the Configure Boot  
Parameters screen.  
2. Take the two digits immediately to the right of the longitude  
decimal point (without doing any rounding) and use the chart  
below to translate these two digits into the number of  
minutes.  
3. Enter the minutes number into the VSAT Longitude in minutes  
field in the Configure Boot Parameters screen.  
4. Repeat steps 1, 2, and 3 for the VSAT Latitude in degrees and  
VSAT Latitude in minutes fields.  
For example, if the site's coordinates are:  
Longitude: 77.2395 deg. West  
Latitude: 38.8351 deg. North  
You should enter:  
VSAT Longitude in degrees: 77  
VSAT Longitude in minutes: 14  
VSAT Longitude Hemisphere (0 = East, 1 = West) <1>: 1  
VSAT Latitude in degrees: 38  
VSAT Latitude in minutes: 50  
VSAT Latitude Hemisphere (2 = North, 3 = South) <2>: 2  
Appendix A • Lat/Long Decimals to Minutes Table  
1031484-0001 Revision 2  
69  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Right of  
Decimal  
Right of  
Decimal  
Right of  
Decimal  
Minutes  
Minutes  
Minutes  
.01  
1
1
.36  
22  
22  
23  
23  
24  
25  
25  
26  
26  
27  
28  
28  
29  
29  
30  
31  
31  
32  
32  
33  
34  
34  
35  
35  
36  
37  
37  
38  
38  
39  
40  
40  
41  
41  
42  
.71  
43  
43  
44  
44  
45  
46  
46  
47  
47  
48  
49  
49  
50  
50  
51  
52  
52  
53  
53  
54  
55  
55  
56  
56  
57  
58  
58  
59  
59  
.02  
.03  
.04  
.05  
.06  
.07  
.08  
.09  
.10  
.11  
.12  
.13  
.14  
.15  
.16  
.17  
.18  
.19  
.20  
.21  
.22  
.23  
.24  
.25  
.26  
.27  
.28  
.29  
.30  
.31  
.32  
.33  
.34  
.35  
.37  
.38  
.39  
.40  
.41  
.42  
.43  
.44  
.45  
.46  
.47  
.48  
.49  
.50  
.51  
.52  
.53  
.54  
.55  
.56  
.57  
.58  
.59  
.60  
.61  
.62  
.63  
.64  
.65  
.66  
.67  
.68  
.69  
.70  
.72  
.73  
.74  
.75  
.76  
.77  
.78  
.79  
.80  
.81  
.82  
.83  
.84  
.85  
.86  
.87  
.88  
.89  
.90  
.91  
.92  
.93  
.94  
.95  
.96  
.97  
.98  
.99  
2
2
3
4
4
5
5
6
7
7
8
8
9
10  
10  
11  
11  
12  
13  
13  
14  
14  
15  
16  
16  
17  
17  
18  
19  
19  
20  
20  
21  
Appendix A • Lat/Long Decimals to Minutes Table  
1031484-0001 Revision 2  
70  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix B  
The Internet and the DW4020  
The Internet Protocol (IP) provides a format for moving packet  
data from node to node. The IP enables data to move from  
department to organization, to a region, across regions, to  
destination organizations, and to departments. The IP layer serves  
as the basis for other protocol layers, as shown in Table 10.  
Internet protocol (IP)  
and transmission  
control protocol (TCP)  
The transmission control protocol (TCP) verifies correct delivery  
of data. TCP detects errors or lost data. TCP initiates  
retransmission so that the data is eventually correctly received.  
The use of these two protocols, together along with a suite of  
other protocols, has been given the official name TCP/IP internet  
protocol suite, or, more commonly TCP/IP.  
Table 10: The Internet Protocol (IP) is the basis for other protocol layers  
FTP – File Transfer Protocol  
IP – multicast  
• Reliable method for delivering files from a host  
machine to remote personal computers  
• Universal way to broadcast digital content to  
multiple locations  
• Takes maximum advantage of DIRECWAY  
satellite star network topology  
TCP – Transmission Control Protocol  
UDP – User Datagram Protocol  
• Session oriented protocol  
verifies correct data delivery  
• For delivering web pages and mission critical data  
• Datagram oriented protocol  
method for delivering short messages between  
two points  
• Basis of IP-multicast  
IP – Internet Protocol  
• Format for moving data from node to node  
• Basis for all of the above protocols  
• Becoming de facto standard for digital transmission – data, video and audio  
• Widespread acceptance in the corporate world  
Turbo Intranet™  
Turbo Intranet is an HNS technique that increases the TCP  
throughput across the satellite link. Turbo Intranet involves using  
local devices to answer TCP overhead messages in the place of  
distant devices. These devices efficiently send outroute data over  
the spacelink and buffer the data for transfer to local hosts within  
Appendix B • The Internet and the DW4020  
1031484-0001 Revision 2  
71  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
their TCP limits, vastly increasing the overall throughput. This  
technique is also known as TCP spoofing.  
IP provides a method of constructing a network of networks  
where computers and networks made by different manufacturers  
and conforming to different standards can exchange information.  
The IP is layered on top of vendor-specific protocols. The data to  
be sent is divided into packets. IP directs each packet based on a  
four-byte destination address, the IP address, in the IP packet  
header.  
IP addressing and the  
DW4020  
The Internet Assigned Numbers Authority (IANA) assigns ranges  
of IP addresses to Internet Service Providers (ISPs), who assign  
ranges to organizations, who are their customers. The  
organizations, in turn, assign individual numbers within that  
range to each of their networked computers.  
In this way, every computer on a network, (each computer on a  
network may also be referred to as a "host") is assigned a unique  
number that identifies it and its network. Actually, the IP address  
is assigned to the connection rather than to the computer itself.  
However, it is assumed that the computers are not moved from  
their respective connections. By convention, these IP addresses  
are written by converting each byte (8 bits) into a decimal number  
(0 to 255) and separating each byte by a period as in 192.77.43.4.  
This format, called dotted decimal notation, is used to enter IP  
addresses.  
It is important to note that IANA defines an "enterprise" as an  
entity autonomously operating a network using TCP/IP and in  
particular determining the addressing plan and address  
assignments within that network. Thus, in the context of TCP/IP,  
installing networks or DW4020s, or assigning IP addresses, the  
term enterprise refers to an organization defined in this way.  
As an example of Internet address assignment, a small business  
owner with four networked computers might apply to IANA or its  
ISP for a “class C” network. In the IP address for a class C  
network the first three bytes identify the network and the last byte  
identifies the individual computer. The business owner is  
assigned the numbers 192.77.43.*, where * represents a “wild  
Appendix B • The Internet and the DW4020  
1031484-0001 Revision 2  
72  
Download from Www.Somanuals.com. All Manuals Search And Download.  
             
card.” The business owner can then assign his individual  
computer connections the numbers as shown in Figure 51.  
Internet  
address  
192.77.43.4  
192.77.43.5  
192.77.43.2  
192.77.43.3  
Figure 51: IP addresses assigned to individual computer connections  
A large organization like a university might apply for a class B  
network, in which the first two bytes are assigned and the last two  
bytes are available to the university to assign up to 64 thousand  
computers in sub-network LANs. For example, the university  
might be assigned a number like 170.15.*.*. The university, in  
turn, could make assignments such as: 170.15.100.* = Physics  
department LAN sub-network, 170.15.101.* = central library  
LAN1 sub-network, and so on. It is a common practice to assign  
the third byte to individual department LANs and the fourth byte  
to individual computers within each department.  
A very large entity might require a class A network that would  
allow over 16 million individual IP address assignments. Table 11  
gives the ranges of IP addresses IANA reserves for specific  
purposes.  
HNS customers have already acquired IP address ranges and  
supply these as needed to HNS installers.  
Note, however, that many organizations of various sizes now use  
private IP addressing (see Private IP addresses below). These  
organizations do not need to assign a unique public IP address to  
each computer (or "host") on their networks.  
Table 11: IP Address ranges  
Category  
Lowest address  
0.1.0.0  
Highest address  
126.0.0.0  
Example or comment  
9.*.*.* for IBM Corp.  
Class A network  
Class B network  
Class C network  
D – multicast  
128.0.0.0  
191.255.0.0  
170.15.*.* – a university  
192.77.43.* – small business  
192.0.1.0  
223.255.0.0  
224.0.0.0  
239.255.255.255  
Appendix B • The Internet and the DW4020  
1031484-0001 Revision 2  
73  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
As Internet use has increased, more and more IP addresses have  
been assigned. There is not an infinite number of IP addresses,  
and IANA is concerned that the supply of unique IP addresses  
could be exhausted. One way to conserve IP addresses is to assign  
them only to hosts that are designated as "public." Hosts that are  
designated as "private" do not need unique IP addresses.  
Private IP addresses  
Types of hosts  
IANA has created three categories of hosts:  
Category 1: hosts that do not require access to hosts in other  
enterprises or the Internet at large; hosts within this category  
may use IP addresses that are unambiguous within an  
enterprise, but may be ambiguous between enterprises.  
Category 2: hosts that need access to a limited set of outside  
services (e.g., E-mail, FTP, netnews, remote login) which can  
be handled by mediating gateways (e.g., application layer  
gateways). For many hosts in this category an unrestricted  
external access (provided via IP connectivity) may be  
unnecessary and even undesirable for privacy/security  
reasons. Just like hosts within the first category, such hosts  
may use IP addresses that are unambiguous within an  
enterprise, but may be ambiguous between enterprises.  
Category 3: hosts that need network layer access outside the  
enterprise (provided via IP connectivity); hosts in the last  
category require IP addresses that are globally unambiguous.  
Hosts in categories 1 and 2 are private hosts. Hosts in Category 3  
are public hosts. Hosts in categories 1 and 2 do not need to be  
directly accessible from other networks. These hosts might  
include airport arrival/departure displays, automatic teller  
machines, or equipment at clerical positions. Thus, these private  
hosts do not need unique IP address numbers. The IP addresses  
private hosts are assigned need only be unique within the  
network; they need not be directly accessible from other  
networks.  
In addition, for security reasons, many enterprises use application  
layer gateways to connect their internal network to the Internet.  
The internal network usually does not have direct access to the  
Internet; thus, only one or more gateways are visible from the  
Internet. In this case, the internal network can use non-unique IP  
network numbers.  
In short, there are many devices that can be connected on an  
internal Internet or intranet that need never be assigned unique IP  
addresses. In this way, IP addresses are conserved.  
IANA has reserved the following three blocks of the IP address  
space for private internets:  
Private address space  
Appendix B • The Internet and the DW4020  
1031484-0001 Revision 2  
74  
Download from Www.Somanuals.com. All Manuals Search And Download.  
             
10.0.0.0  
- 10.255.255.255 (10/8 prefix)  
172.16.0.0  
- 172.31.255.255 (172.16/12 prefix)  
192.168.0.0 - 192.168.255.255 (192.168/16 prefix)  
The first block is the "24-bit block," the second is the "20-bit  
block," and to the third is "16-bit" block. Note that the first block  
is nothing but a single class A network number, while the second  
block is a set of 16 contiguous class B network numbers, and  
third block is a set of 256 contiguous class C network numbers.  
An enterprise that decides to use IP addresses out of these address  
spaces can do so without any coordination with IANA or an  
Internet registry. The address space can thus be used by many  
enterprises. Addresses within this private address space will only  
be unique within the enterprise, or the set of enterprises which  
choose to cooperate over this space so they may communicate  
with each other in their own private internet. An enterprise that  
requests IP addresses for its external connectivity will never be  
assigned addresses from the blocks defined above.  
DW4020 customers who use private addressing must install a  
router or switch between the DW4020 and their network. They  
will also need to provide the installer with the LAN Gateway  
address and, if applicable, the LAN subnet mask (see Configuring  
the Gateway host in Chapter 3).  
Private IP addressing and  
DW4020 customers  
Appendix B • The Internet and the DW4020  
1031484-0001 Revision 2  
75  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
The DW4020 provides connectivity from a satellite network to  
multiple computers.  
DW4020s provide  
connections  
From the point of view of the individual computer user, the  
DW4020 provides the link to the outside world. DW4020s direct  
data traffic by inspecting the IP addresses. A DW4020 is assigned  
two IP addresses, one in each network that it links.  
Figure 52 illustrates a typical connection scheme for the  
DW4020.  
IRU  
ITU  
25 Pin  
Connector  
USB  
GWH  
From LAN  
LAN IP Address: 170.15.100.1  
Hub  
DW4020  
IP Address  
170.15.99.1  
LAN  
Gateway  
IP Address  
170.15.xxx.yyy  
IP Address  
170.15.100.2  
170.15.100.3  
170.15.100.4  
170.15.100.5  
HNS Network Operations Center  
(NOC)  
Figure 52: Typical DW4020 connection scheme  
The subnet mask defines the part of the IP address used to  
identify computers on the same LAN from computers in other  
departments or elsewhere in the world. Computers on the same  
LAN can send messages directly to each other. Messages for  
other LANs and the rest of the world need to be sent through a  
router. In a scheme where the first three bytes identify the LAN  
network, the subnet mask is 255.255.255.0. The decimal number  
255 corresponds to the binary number 11111111. In IP address  
notation, 0 is interpreted to mean “this.”  
Subnet mask  
Appendix B • The Internet and the DW4020  
1031484-0001 Revision 2  
76  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Appendix C  
Installing the DW4020 Manually  
The installation specification may direct you to install the  
DW4020 using the serial port. You would connect the installer  
laptop to the Gateway via the serial ports with a 9-pin female to  
female (F/F) null modem serial cable. That cable is not included  
with any DW4020 equipment.  
You need all the items shown in Figure 53. Some of them are in  
Items needed for  
installation  
the modem installation kit or inside the antenna box. You must  
provide a 9-pin female/female (F/F) null modem serial cable. The  
serial cable is used to configure the DW4020 via the serial port.  
You will also need the installation specification or work order.  
This is provided to you by HNS.  
Read this manual and obtain serial cable and installation work order  
l
a
u
n
a
m
c
is  
e
h
p
ll S  
T
ta  
s
In  
9-pin F-F serial cable  
Install specification  
Installation manual  
Ethernet cable  
These items are packaged in a small box inside your antenna box  
Clips  
Receive modem  
Transmit modem  
Gateway  
AC cord  
DC cord  
Power supply  
1031105-0001  
USB cable  
Power adapter  
25-pin connector cable  
Figure 53: Items required for installation  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
77  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
DW4020 users must use a power supply with the part number  
P/N: 1031105-0001. The part number is on a sticker on the power  
supply. Verify that you are using the correct power supply. Do not  
use anything but the power supply supplied with the DW4020  
system (1031105-0001).  
The power supply  
Be sure the power supply is labeled ADP 64AB B in the upper  
right hand corner of the label, above the bar codes. See Figure 54.  
CAUTION  
• This unit’s performance may suffer if the wrong power  
supply is used.  
• This unit must be used with the power supply PN  
1031105-0001.  
• When power needs to be removed from the receive  
modem, ALWAYS unplug the AC power cord from either  
the wall outlet, surge protector, or power strip.  
• NEVER pull the power cord from the back of the receive  
modem. Doing so could damage the pins and also  
cause a short in the system.  
• Power supply with the part number 1031105-0001 is to  
be used only in the United States and Canada.  
• This unit must be used with 110-volt AC input.  
• Other countries may have different standards and  
requirements.  
ADP-64AB B  
PN: 1031105-0001  
Figure 54: PN: 1031105-0001 and ADP-64AB B above bar code  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
78  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Follow the steps below and refer to the illustrations on page 80  
through page 83 to assemble the DW4020 components. After you  
assemble the components, you can plug in the power supply and  
observe the LED display cycling, as explained in The DW4020  
LEDs on page 86.  
Assembling the  
components  
CAUTION  
• The components must be stacked in this order: Gateway  
on bottom; transmit modem on top of Gateway; receive  
modem on top of transmit modem. See Figure 57.  
• If the components are not stacked in the proper order, the  
receive modem may overheat and malfunction.  
• Do not block any ventilation openings. Do not install near  
any heat sources such as radiators, heat registers,  
ovens, stoves, or other apparatus (including amplifiers)  
that produce heat.  
• Recommended ventilation space around the top and  
sides of the DW4020 assembly should be approximately 6  
inches. Ventilation is necessary to avoid overheating.  
1. Write down the receive modem serial number. It is located  
below the barcode on the back of the modem and is the  
second portion of the line. (For example, R1CF4B21E -  
00827500 would be Serial Number 827500.)  
2. Be sure the power supply is not plugged into a wall outlet,  
surge protector, or power strip.  
3. Lay two of the four clips on a table and mount the  
components as shown in Figure 55. Mount the Gateway first,  
then the transmit modem, then the receive modem.  
4. Turn the component stack right side up and install the other  
two clips as shown in Figure 56.  
Note: The Gateway and the transmit modem have a hole at  
the center of each of its four feet. There is a tab on the bottom  
of each mounting clip, which snaps into place on the Gateway  
when properly aligned over the hole.There is also a tab in the  
middle of each mounting clip, which snaps into place on the  
transmit modem when properly aligned over the hole.  
Note:  
5. Double-check that the components are installed in this order  
from top to bottom: receive modem, transmit modem,  
Gateway (see Figure 57).  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
79  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Figure 55: Mount the components on two clips  
Figure 56: Attach the other clips  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
80  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Receive modem  
Transmit modem  
Gateway  
Figure 57: Component stack  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
81  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
6. Connect the component interconnection cables. A short USB  
cable connects the receive modem and the Gateway. A 25-pin  
connector cable connects the transmit and receive modems. A  
power supply adapter cable provides power to the Gateway  
and receive modem (see Figure 58).  
7. Connect the receive coaxial cable to the receive modem and  
the transmit coaxial cable to the transmit modem (see  
Figure 59).  
Power supply  
adapter  
Receive  
modem  
25-pin connector  
cable  
Transmit  
modem  
Gateway  
USB cable  
Figure 58: Attach interconnection cables  
Receive  
modem  
Transmit  
modem  
Receive  
cable  
Gateway  
Transmit cable  
Figure 59: Attach coaxial cables  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
82  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
8. Connect up to four Ethernet cables to the network ports on  
the Gateway (see Figure 60). Either a straight-through or a  
cross-over Ethernet cable can be used. The four ports labeled  
1 through 4 are Ethernet 10 Base - T/100 network ports. They  
enable you to connect to other computers via an Ethernet  
connection. (Reference UL 60950, Annex NAA, Subclause  
reference 6, page 322.)  
Network  
cable  
Receive  
modem  
Transmit  
modem  
Connect up  
to four Ethernet  
cables  
Gateway  
Four 10 Base - T/100 -Tx  
network ports  
T0091012  
Figure 60: Attach network cables  
9. Attach the power supply cords to the power supply and to the  
power supply adapter. Ensure that the power cord is tightly  
connected to the power supply, modem, and Gateway (see  
Figure 61). The final assembly is shown in Figure 62.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
83  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
AC power  
cord  
Receive  
modem  
Transmit  
modem  
Power  
supply  
DC power  
cord  
Gateway  
Ethernet cables  
T0091013  
Figure 61: Connect power cord  
Figure 62: Final assembly  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
84  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
After you have assembled the DW4020, plug it into a 110 V wall  
outlet, power strip, or surge protector. The Gateway LED display  
will cycle as shown in Table 12. The cycling completes in less  
than a minute.  
Powering up and reading  
the DW4020 LED display  
Note: In countries outside North America, the DW4020 may be  
plugged, with a physical adapter, directly into a 220 V outlet.  
Different countries may have different standards and requirements.  
The transmit and receive modems have their own LEDs, which  
show their status. These are described in The DW4020 LEDs on  
page 86.  
Note that normal Gateway operation alone doesn't imply normal  
DW4020 operation. The installation and commissioning process  
may not have been completed or software download (DLL) from  
the Network Operations Center (NOC) may not have been  
completed. Additional status information is available via the User  
Interface. See Chapter 3 – The User Interface, on page 33) and  
the LEDs on the receive and transmit modems (see  
Communicating with the Gateway through the serial port on  
page 95).  
Table 12: Gateway LED cycling at startup  
LED condition  
STATUS LED  
Power off  
READY LED  
Off  
Power off or startup  
diagnostics not yet run  
successfully  
Steady Green  
Normal operation  
Running software  
downloaded from NOC;  
successfully  
commissioned  
Blinking Orange  
Contact between GWH Not applicable  
and IRU over USB not  
established; USB cable  
not installed or some  
other USB problem  
Blinking Green  
Steady Red  
Not applicable  
Power on tests  
Not commissioned  
Not applicable  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
85  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
The receive and transmit modems have LEDs on their front  
panels. Both modems have a green READY LED. The receive  
modem has a green RX LED. The transmit modem has a green  
TX LED. The LEDs’ status indicate various conditions. Table 13  
describes the basic states.  
The DW4020 LEDs  
The LEDs may also indicate various conditions through blink  
patterns. Tables 7 and 8 explain these. The numbers in brackets  
are the status codes discussed in The System Status indicator on  
page 36.  
If the modem does not appear to be functioning, check all cable  
connections. If they are secure, cycle the power by unplugging  
the power cord at the power supply and plugging it back in. A  
number of conditions and corrective actions are described below.  
The READY LEDs should come on steadily when the DW4020 is  
powered up and when it is operating. The TX and RX lights can  
also blink when the DW4020 is first powered up, or when the  
DW4020 is power cycled. However, that blinking does not  
indicate anything about their status.  
Table 13: Basic Receive and Transmit Modem LED States  
Ready OFF/RX OFF  
Ready ON/RX Off  
Ready ON/RX  
blinking  
Receive modem  
Transmit modem  
Modem not functioning Modem functioning, no Modem functioning,  
data being received  
data being received  
Ready OFF/TX OFF  
Ready ON/TX Off  
Ready ON/TX blinking  
Modem not functioning Modem functioning, no Modem functioning,  
data being transmitted data being transmitted  
The DW4020 is extremely reliable. If you find you cannot surf  
the Internet or the DW4020 seems to have a problem, follow this  
sequence of steps below to identify and fix the problem.  
• Check whether the DW4020 LEDs or on or off. The LEDs  
may indicate that a connection has become loose.  
Reconnecting a cable or power cord may restore function.  
See DW4020 LEDs status.  
• Check if the LEDs are blinking in a pattern. The LEDs can  
blink in a pattern. The patterns correspond to the receive and  
transmit status codes discussed in Transmit Status messages  
on page 37 and Receive Status messages on page 42. See  
LED blinking indicating status codes on page 60 for a  
discussion of the blinking LEDs.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
86  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
• Check if the LEDs on the back of the Gateway or on or off.  
The LAN ports on the back of the Gateway have LEDs. See  
Ethernet port LEDs on page 94.  
• Contact Customer Care. If the corrective actions described in  
this chapter and Chapter 3 – The User Interface do not solve  
the problem, contact technical support.  
The DW4020 LEDs  
The receive modem has a RX and a READY LED. The transmit  
modem has a TX and a READY LED. The Gateway has a  
STATUS and READY LED.  
Note: Whenever the LEDs do not function properly as described  
below, check to be sure you have the correct power supply, PN  
1031105-0001.  
DW4020 LEDs status  
This section describes the LEDs’ appearance during typical  
DW4020 operation. It also describes their appearance when some  
basic problem is occurring.  
When the DW4020 is powered on but not receiving or  
transmitting data, it appears as shown in Figure 63. The modems’  
READY LEDs are continuously lit. Both the Gateway LEDs are  
continuously lit.  
Normal operation, no  
transmit or receive  
Modems’ READY  
LEDs continuously lit  
Both Gateway LEDs  
continuously lit  
Figure 63: DW4020 normal operation, no data received or transmitted  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
87  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
During normal DW4020 operation, the modems’ READY LEDs  
are continuously lit, the RX and TX LEDs blink as they pass data,  
and both the Gateway LEDs are continuously lit, as shown in  
Figure 64.  
Normal operation, data  
being sent and received  
RX LED blinks as  
modem passes  
data; READY  
LED on  
continuously  
TX LED blinks as  
modem passes  
data; READY  
LED on  
continuously  
Gateway STATUS  
and READY LEDs  
continuously lit  
Figure 64: Normal operation, data being sent and received  
If the DW4020 is not operating normally and the receive  
modem’s READY LED is not lit, as shown in Figure 65, take the  
following steps:  
Problem: receive modem  
READY LED not on  
• Check to make sure the power cord is securely attached to the  
receive modem and plugged into the wall outlet or surge  
protector. See Figure 66. If the power cord was loose, the  
receive modem READY led will come on when power is  
restored.  
• If securing the power cord does not solve the problem, check  
all cable connections. Tighten any that seem loose.  
• If the Receive modem READY LED still does not come on,  
power cycle the DW4020 by unplugging the power cord from  
the wall outlet or surge protector, waiting ten seconds, and  
plugging it back in.  
• If the problem persists, contact technical support.  
Note: Often, if the receive modem READY LED is not lit, the  
other modem LEDs will not be lit either.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
88  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Receive modem READY LED  
not lit. Note that in many  
cases other modem LEDs  
will not be lit either.  
Figure 65: Receive modem READY LED not lit  
AC power  
cord  
Receive  
modem  
Transmit  
modem  
Power  
supply  
DC power  
cord  
Gateway  
Ethernet cables  
T0091013  
Figure 66: DW4020 power and cable connections  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
89  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
If the transmit modem is not operating normally and its READY  
LED is not lit, as shown in Figure 67, take the following steps.  
Transmit modem READY  
LED not lit  
• Check that the receive modem READY LED is continuously  
lit. If not, try the sequence in Problem: receive modem  
READY LED not on on page 88.  
• Check that the 25-pin connector is attached securely. See  
Figure 66.  
• Check to make sure the power cord is securely attached to the  
receive modem and plugged into the wall outlet or surge  
protector. See Figure 66. If the power cord was loose, the  
transmit modem READY led may come on.  
• If securing the power cord does not solve the problem, check  
all cable connections. Tighten any that seem loose.  
• If the transmit modem READY LED still does not come on,  
power cycle the DW4020 by unplugging the power cord from  
the wall outlet or surge protector, waiting ten seconds, and  
plugging it back in.  
• If the problem persists, contact technical support.  
Receive modem READY LED  
continuously lit, showing that it is  
functioning  
Transmit modem READY LED  
not lit  
Figure 67: Transmit modem READY LED not lit  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
90  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
If the Gateway does not seem to be functioning and its LEDs are  
not lit, and the receive modem READY LED blinks as shown in  
Figure 68, take the following steps.  
Gateway LEDs not lit  
• Check to make sure the power cord is securely attached to the  
Gateway and receive modem and plugged into the wall outlet  
or surge protector. See Figure 66. If the power cord was  
loose, the Gateway and receive modem READY LEDs will  
come on when power is restored.  
• If securing the power cord does not solve the problem, check  
all cable connections. Tighten any that seem loose.  
• If the Gateway READY LED still does not come on, power  
cycle the DW4020 by unplugging the power cord from the  
wall outlet or surge protector, waiting ten seconds, and  
plugging it back in.  
• If the problem persists, contact technical support.  
Receive modem READY  
LED blinks  
Gateway LEDS are  
not lit  
Figure 68: Gateway LEDs not lit  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
91  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
If the Gateway does not seem to be functioning and its STATUS  
LED flashes amber, and the receive modem READY LED blinks  
or is not lit, as shown in Figure 68, take the following steps.  
Gateway LEDs flash, receive  
modem READY LED off or  
flashing  
• Check to make sure the USB cable is securely attached to the  
Gateway and receive modem. See Figure 66. If the cable was  
loose, the Gateway and receive modem READY LEDs will  
come on when it is reattached.  
• If securing the USB cable does not solve the problem, check  
all cable connections. Tighten any that seem loose.  
• If the Gateway STATUS LED still does not come on  
continuously, power cycle the DW4020 by unplugging the  
power cord from the wall outlet or surge protector, waiting  
ten seconds, and plugging it back in.  
• If the problem persists, contact technical support.  
Receive modem READY  
LED blinks or is not lit  
Gateway STATIS LED  
blinks amber  
Figure 69: Gateway STATUS LED blinks amber  
The DW4020 modems’ READY LEDs can blink in various  
patterns. These patterns correlate to the status codes discussed in  
Transmit Status messages on page 37 and Receive Status  
messages on page 42. If you can see the patterns, you also have  
access to the User Interface. It will be easier to find out what the  
status of the DW4020 is via the interface than the LED status  
LED blinking indicating  
status codes  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
92  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
blinking. The blink patterns are described below for your  
information.  
Transmit  
READYLED  
Pattern  
Corresponding transmit status messages  
Off  
On  
4(or powered off)  
8
1
2 Long,  
1 Short  
2 Long,  
2 Short  
2
2 Long,  
3 Short  
11  
3
1 Long,  
1 Short  
1 Short  
2 Short  
3 Short  
4 Short  
5
10, 13, 14, 15,16, 21, 22, 23  
6, 7  
12, 17  
Slow  
9,18,19,20  
Alternating  
Fast  
Alternating  
The ITU interface testing – This is a continuous fast blinking pattern, with the Transmit LED being the  
inverse of the Ready LED. No corresponding message.  
Receive  
Corresponding receive status message  
READY LED  
Pattern  
Fast  
Alternating  
Prior to downloading software– This is a continuous fast-blinking pattern, with the RX LED being the inverse  
of the Ready LED. No corresponding message.  
Slow  
1
Alternating  
On  
5
1 Long,  
1 Short  
3,6  
1 Long,  
2 Short  
4,7  
1 Short  
0
2
1 Long,  
1 Short,  
1 Long  
Table 14: Receive modem READY LED blink patterns  
Appendix C • Installing the DW4020 Manually  
93  
1031484-0001 Revision 2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Each of the four Ethernet ports on the DW4020 has two LEDs  
associated with it. One LED is green and one is yellow. See  
Figure 70.  
Ethernet port LEDs  
The green LED will be on if power is applied to the DW4020 and  
a 100baseT Ethernet device is connected to the corresponding  
Ethernet port. Otherwise, the green LED will be off.  
if the power is on and the light is off while a network device is  
connected, then the device is a 10baseT device and the port is  
autosensing.  
The yellow LED will also be on when power is applied to the  
DW4020. It will flash momentarily when there is LAN activity  
on the corresponding Ethernet port.  
Green LED  
Yellow LED  
Figure 70: Ethernet port LEDs  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
94  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
After the Gateway finishes the LED sequence, you will use a  
laptop PC to communicate with the Gateway via a serial cable.  
(You can also use a desktop PC.) You access the Boot Parameters  
screen and set the parameters. You also point and cross-pol the  
antenna. In order to complete the parameters, you will need your  
installer ID and the information shown in Figure 80 on page 102.  
Communicating with the  
Gateway through the  
serial port  
1. Attach one end of a 9-pin F-F (female/female) null modem  
serial cable to the serial port on your PC.  
2. Attach the other end of the cable to the Gateway serial port  
(see Figure 71).  
Connecting the Gateway  
and laptop  
Gateway serial  
port  
Figure 71: Location of Gateway serial port  
3. Run Hyperterminal or a similar terminal emulation program  
to access the Gateway software Main Menu. The first time  
you do this, you configure the COM1 port’s properties and  
save the connection as a Hyperterminal.htfile. For all  
subsequent installs, you simply open the file.  
Configuring Hyperterminal  
or terminal emulation  
program  
Note: You can often find the Hyperterminal icon in the  
Accessories subfolder in the Windows Start menu. If you cannot  
find it there, go to Start→Find→Files or Folders and search for  
Hyperterminal. Windows will find the Hyperterminal folder. Open  
it and click on Hyperterminal.The program will run. If  
Windows does not find Hyperterminal you must install it. Go to  
Control Panel→Add/Remove Programs→ Add/Remove  
Programs Properties and select the tab for the version of  
Windows you use. Click the Communications checkbox. Click  
Details to make sure the Hyperterminal checkbox is checked; if  
it is not, check it and click OK. Click OK in the Add/Remove  
Programs Properties box. Windows should install Hyperterminal.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
95  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
a. Select Start→Accessories→Hyperterminal and click on the  
Hyperterminal file (see Figure 72). The Connection  
Description window appears (see Figure 73). The red and  
yellow phones icon is highlighted in blue. You will  
establish a new connection.  
Figure 72: Starting Hyperterminal  
Figure 73: Connection Description window  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
96  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
b. Enter DW4020in the New field.  
c. Select OK. The Connect To window appears.  
d. Select COM1from the Connect Using pull-down list (see  
Figure 74). (Select COM2 is you want to use that port.)  
Figure 74: Connect To window  
e. Select OK. The COM1 Parameters window appears.  
f. Configure the Port Settings by selecting the parameters  
below from the appropriate pull-down list (see Figure 75).  
– Bits per second (baud): 9600  
– Data bits: 8  
– Parity: none  
– Stop bits: 1  
– Flow control: none  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
97  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Figure 75: COM1 Properties window and pull-down menus  
g. Select OK. The window disappears.  
h. Select File→Save As. The Save As window appears.  
i. Enter DW4020in the File name field and select Save. The  
window disappears. Now you will simply be able to select  
the DW4020.htfile when connecting the Gateway and the  
laptop during future installs.  
j. Select Call→Connect. The laptop will connect to the  
Gateway.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
98  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
4. Press ENTER at the Hyperterminal prompt to display the  
initial Install Console screen shown in Figure 76.  
Figure 76: Initial Install Console screen  
Note: For all future Gateway installations, use the DW4020.ht  
file you saved to connect the Gateway and laptop. Start  
Hyperterminal. Select File→Open→DW4020.ht. The Gateway  
and laptop will connect.  
5. Press ENTER to display the Main Menu shown in  
Figure 77.  
Main Menu:  
(a) Configure Boot Parameters  
(b) Display Current Configuration  
(c) Display Satellite Interface Statistics  
(d) Display Active Routing Table  
(f) Run Software Download Monitor  
(h) Display Reset History  
(i) Installation  
(t) Run Final/Built-in Tests  
(pc) (Parameter Clear)  
(pw) (Parameter Write)  
(rr) (Gateway Reset)  
Clear Configuration  
Write Configuration  
Reset the Gateway  
(rd) (Gateway Deconfigure) Force Download and  
Acquire New Keys  
Figure 77: BOOT ROM installer console Main Menu  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
99  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
6. Enter c to display the Satellite Interface Statistics menu  
(see Figure 78).  
Figure 78: Satellite Interface Statistics menu with Display  
Satellite Interface Serial Number displayed  
7. Enter c to display the satellite interface serial number (see  
Figure 78).  
If the electronic serial number is different from the barcode  
receive modem serial number, call the installer hotline for the  
DW4020 series and request the serial number be corrected.  
You must supply the Site/Master account number that can be  
found on the work order. Also observe all cautions in the  
Caution box below.  
8. Enter Zto return to the Main Menu.  
CAUTION  
• You must confirm the receive modem electronic serial  
number through the serial connection using  
Hyperterminal when configuring the DW4020.  
• If the electronic serial number is different from the  
barcode receive modem serial number, call the installer  
hotline for the DW4020 series and request the serial  
number be corrected. You must supply the Site/Master  
account number that can be found on the work order.  
• Do not use any other receive modem at the site unless  
instructed by HNS personnel. If the wrong modem is  
brought to the pre-configured site, delays can occur due  
to re-configuration issues in the NOC.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
100  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Use Configure Boot Parameters to configure the Gateway for  
outroute reception and downloading of software. For initial  
installation, most parameters must be entered, except for VSAT  
Return Path, which is always “Inroute.”  
Configuring Boot  
Parameters  
Thus, you will need your installer ID, and you will need all  
necessary information to enter data for the fields marked with an  
asterisk in Figure 80. One asterisk means the installer must  
provide or obtain the information; two asterisks means the  
information is global for all installations. Refer to Appendix A  
for information on how to determine how to convert  
degrees/decimal values to degree/minutes values.  
Note: Two good Web sites for determining your latitude and  
longitude include: http://www.zipinfo.com/search/zipcode.htm  
and http://www.census.gov/cgi-bin/gazetteer  
Note: If you will be using the Outdoor Pointing Interface (OPI)  
device, remember that the LNB 22KHz Switch parameter must be  
set to "OFF" to enable the device. You may leave the parameter at  
OFF for the rest of the installation. The instructions below  
describe how to set parameters.  
1. Enter aat the Main Menu prompt. Each parameter shown in  
Figure 80 appears, one at a time, one line at a time.  
For example, the first parameter to appear after you enter a is  
the VSAT Return Path Parameter, as shown in Figure 79.  
.
VSAT Return Path (1 = Receive Only, 2 = Inroute, 3 = LAN) <2>:  
Figure 79: VSAT Return Path Parameter  
All the parameters are shown in the Display Current  
Configuration screen in Figure 80. The screen is displayed by  
entering bat the Main Menu prompt.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
101  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Creation Date:  
Feb 8 2002, 11:43:08  
Current Gateway Image Executing:  
IRU Software Version Number:  
Main.bin  
33  
=======================================================================  
Parameter  
Value entered  
Value in use  
-------------------------------------- --------------  
------------  
VSAT Return Path:  
**Inroute  
**117  
**0  
**West  
*77  
*10  
*West  
*39  
Inroute  
117  
0
West  
77  
10  
West  
39  
10  
Satellite Longitude in degrees:  
Satellite Longitude in minutes:  
Satellite Hemisphere:  
VSAT Longitude in degrees:  
VSAT Longitude in minutes:  
VSAT Longitude Hemisphere:  
VSAT Latitude in degrees:  
VSAT Latitude in minutes:  
VSAT Latitude Hemisphere:  
Satellite Channel Frequency:  
Receive Symbol Rate:  
*10  
*North  
North  
*11100 (x 100Khz) 11100 (x 100Khz)  
*30000000 Sps  
*Vertical  
*On  
30000000 Sps  
Vertical  
On  
LNB Polarization:  
LNB 22KHz Switch:  
Filter Rolloff:  
*20  
20  
LAN1 IP Address:  
*66.82.56.50  
66.82.56.50  
LAN1 Subnet Mask:  
*255.255.255.240 255.255.255.240  
IP Gateway IP Address:  
SDL Control Channel Multicast Address: *224.0.1.4  
VSAT Management IP Address:  
Default Router IP Address:  
Main Menu (<?/CR> for options):  
*66.82.24.154  
66.82.24.154  
224.0.1.4  
10.0.0.0  
*10.0.0.0  
10.0.0.10  
10.0.0.0  
Figure 80: Display Current Configuration Screen  
2. As each one-line parameter appears, enter the specific values  
as defined in the installation specification for this customer or  
as specified by HNS personnel and press ENTER. The next  
parameter will then appear.  
Type -and press ENTER at the prompt to go to the previous  
parameter. You can also skip the remaining parameters by  
typing \and pressing ENTER.  
Note: The Default Router Address isn’t used in most cases  
and doesn’t have to be configured. The VSAT Return Path  
should be configured to "Inroute."  
Note: The values in the examples are for illustrative  
purposes only. Do not use them to configure the Gateway.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
102  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
3. When you have entered all parameters, return to the Main  
Menu and enter pw. This saves the configuration parameters  
to the flash memory. At this point, depending on the  
parameters that were modified, the Gateway may reset.  
4. A message Writing the configuration -are you  
sure (y/n) appears. Enter y. At this point, depending on  
the parameters that were modified, the Gateway should reset.  
If it does not reset, enter rrto do a Gateway reset.  
5. At the Main Menu prompt, enter bto display the current  
configuration. The display is similar to the one shown in  
Figure 80. Verify the parameter values and match them to the  
installation or NOC specification.  
After you have entered the boot parameters, use the Installation  
Menu to receive and transmit point the antenna. Transmit  
pointing uses both an automatic and manual mode.  
The Installation Menu  
The Outdoor Pointing Interface (OPI) device can also be used to  
point an antenna used with a DW4020. Follow the instructions in  
the Outdoor Pointing Interface Operating Instructions (HNS  
1031832-0001).  
Note: Remember that if you use the OPI, the LNB 22KHz  
Switch parameter must be set to "OFF." You may leave the  
parameter set at "OFF" for the rest of the installation.  
Note: Remember that if you wish to exit the Installation Menu  
and return to the Main Menu, you must type "Z" and press  
ENTER. If you don’t you’ll remain in one of the Installation  
submenus until you do so.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
103  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
CAUTION  
• The two-way satellite dish assembly emits radio  
frequency energy when in the transmit mode.  
• Unplug indoor power connection before performing  
maintenance or adding upgrades to any satellite dish  
components.  
• To avoid risk of injury, do not place head or other body  
parts between feed horn and reflector when system is  
operational.  
Prohibited area  
(when operational)  
Antenna Pointing - Receiver This section describes how to verify adequate receive signal  
reception, that is, with a signal quality factor (SQF) of over 30.  
1. Enter iat the Main Menu prompt. The Installation Menu  
appears (see Figure 81). Enter either your installer ID number  
or <CR>, which defaults to a valid installer ID, to access the  
submenus. If automatic cross-polarization (ACP) is not  
available, "Transmitter, Automatic (not  
available" will appear in the menu.  
Installation Menu:  
(a) Antenna Pointing - Receiver  
(b) Antenna Pointing - Transmitter, Automatic  
(c) Antenna Pointing - Transmitter, Manual  
(d) Verify Ranging  
(z) Return to Main Menu  
Figure 81: Installation Menu  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
104  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
2. At the Installation Menu prompt, enter ato obtain antenna  
pointing values and assigned satellite parameters. The  
Antenna Pointing - Receiver screen in Figure 82 appears.  
Figure 82: Antenna Pointing - Receiver  
The SQF represents the strength of the received signal  
relative to noise. SQF is an integer value between 0 and 99.  
The SQF value is interpreted as follows:  
– 0-29. The receive modem is not locked onto the desired  
signal. The value increases as the Gateway receives  
stronger signal power.  
– 31-99. The receive modem is locked onto the desired  
satellite signal.  
– 30. The receive modem is locked onto a satellite signal, but  
is waiting for a message confirming that it is locked to the  
correct signal. An unchangeable value of 30 indicates that  
the receive modem is locked onto a wrong signal.  
3. If the SQF is less than 30, refine the antenna pointing to bring  
the SQF over 40 and to as close to 99 as possible. The SQF  
message updates automatically. There is a delay of up to 10  
seconds between the displayed and the current SQF value.  
4. If you cannot achieve a satisfactory SQF, take the steps below  
in the order suggested until the situation is corrected.  
a. Check for unobstructed view to the satellite.  
b. Refine antenna aiming.  
c. Check LNB polarization.  
d. Check receive symbol rate.  
e. Replace LNB.  
f. Replace entire DW4020 unit.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
105  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Antenna Pointing - Transmitter, The manual cross-polarization function can be used to adjust the  
Manual antenna and peak the antenna’s transmit polarization for  
maximum isolation. You can also use manual pointing to adjust  
polarization after failing the automatic cross-polarization test.  
1. Enter C at the Installation Menu prompt. The Antenna  
Pointing - Transmitter, Manual screen appears.  
Otherwise, the screen shows the current queue position until  
the test can be run. When the Test Status field shows Active  
the test can be run. The result of the test is shown in the  
Result: field, where a transmitter isolation value is reported.  
2. Make small, one-degree or less changes in polarization while  
observing the transmitter isolation. Peak the transmitter to the  
highest possible transmitter isolation value.  
3. Press Enterto return to the Installation Menu.  
Antenna Pointing - Transmitter, Automatic cross-polarization (ACP) is used for a rapid Pass/Fail  
Automatic test of the antenna’s transmit polarization adjustment. If you pass  
ACP the unit is enabled and no further antenna pointing is  
needed.  
1. Enter Bat the Installation Menu prompt. The Antenna  
Pointing - Transmitter, Automatic screen appears.  
Otherwise, the screen shows your current queue position until  
the test can be run. (Sometimes a number of installers will be  
pointing their antennas at the same time. You may have to  
wait for the test to be run, and are placed in a queue until it  
can be run.)  
The result of the test is shown in the Result: field. PASS  
means the transmit modem will be enabled and the system  
should be operational. FAILmeans the transmit modem will  
be disabled and the dish pointing needs to be checked.  
2. Whether you pass or fail, press Enterto return to the  
Installation Menu.  
3. Enter zto return to the Main Menu.  
4. At the Main Menu enter c. The Satellite Interface Statistics  
Menu appears (see Figure 83).  
5. Enter a. The Display Main Statistics screen appears. Confirm  
the SQF is greater than 31 and that the transmitter is  
available.  
6. Enter zto return to the Main Menu.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
106  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
CAUTION  
Any time you enter the DW4020 Installation Menu, the  
transmitter is turned off for safety reasons. Do not enter "I"  
to access the Installation Menu after this point unless  
instructed to do so by a technician at the NOC.  
Figure 83: Display Main Statistics  
Range value Ranging may have to be initiated by the NOC to adjust for  
differences in delay due to distance to the satellite. Check your  
installation specification to see if this is necessary.  
To learn if ranging is available and being used by the unit, enter d.  
If it is available and used, SUCESSFULwill appear; if not, NEED  
RANGING will appear.  
Ranging must be done before you exit the Installation Menu.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
107  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
If the Gateway is configured correctly for outroute reception and  
SQF is greater than 30, it will acquire the outroute. As soon as the  
Gateway acquires the outroute, it begins to look for the Hub  
Server in the data stream to perform software download.  
Verifying software  
download  
1. To monitor software download (SDL) progress, enter f at the  
Main Menu prompt to select Software Download Monitor.  
2. The following message is displayed at the bottom of the  
screen:  
SDL Initialization complete. Awaiting first heartbeat msg.  
This message is dynamically updated. It indicates that SDL  
has started and is waiting to connect with the hub server.  
Note: It may be 20 minutes before the first heartbeat message is  
received.  
3. If SDL does not progress beyond this message, check the  
following:  
• The SDL control channel’s multicast IP address  
– Return to the Main Menu.  
– Enter bto view the current configuration  
– Check that the SDL Control Channel Multicast Address is  
correct. If not, enter the correct address.  
• The Ready lights to ensure they are on. See The DW4020  
LEDs on page 86 and Communicating with the Gateway  
through the serial port on page 95.  
4. When the Gateway receives a message from the Hub Server,  
the following message is displayed:  
Received first heartbeat message.  
5. If there is no progress beyond this message, check the return  
path. When operating normally, the following message is  
displayed:  
Received File/Group message. Reconciling files...  
MM loading...  
IP loading...  
...  
All files downloaded. Notifying CFM.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
108  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
6. On successful download, the Gateway automatically resets to  
reflect the new software. The new configuration takes effect.  
Figure 84: Gateway reset  
7. At the Main Menu prompt, select fto monitor SDL progress.  
The following messages are displayed:  
SDL Initialization complete. Awaiting first heartbeat msg.  
Received first heartbeat message.  
All files downloaded. No pending changes.  
The DW4020 may now be hooked up to either a configured PC or  
network.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
109  
Download from Www.Somanuals.com. All Manuals Search And Download.  
The DW4020 has no serviceable parts. However, you may be able  
to debug units with help from the network operations center  
(NOC). You access the menus below via the serial port, just as  
when you set up the DW4020.  
DW4020 status  
information via the  
serial port  
You can verify that the DW4020 unit is receiving and processing  
data by following the steps given below.  
Verifying correct  
DW4020 operation  
1. Enter A at the Main Menu to access Satellite Interface  
Statistics.  
2. At the Satellite Interface Stats submenu enter Ato select  
Display Main Statistics. In the display that appears (see  
Figure 85), check if frames are being accepted.  
Signal Quality Factor: <83>  
Frames Received:  
F-error:  
<181>  
<0>  
Addresses Open:  
<2>  
Receive Status:  
Transmit Status:  
<The receiver is operational. (RxCode 5)>  
<The transmitter is available. (TxCode 8)  
Figure 85: Display Main Statistics  
The Frames Received and F-error values indicate the  
DW4020 is detecting frames and correctly receiving and  
demodulating an outroute signal.  
Note the Signal Quality Factor is also reported; if the SQF is  
below 31, the antenna must be repointed.  
The Receive Status and Transmit Status fields report whether  
the receive and transmit modems are operational. If they are  
not operational or available, antenna pointing is not possible.  
The Rx and Tx codes have the same meanings as explained in the  
LED flashing code tables above.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
110  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
At the Satellite Interface Statistics submenu enter B to select  
Display Traffic Statistics. The screen in Figure 86 appears.  
Displaying traffic statistics  
aam info  
---------------------------------------------------------  
state dpcmac ethmac key  
------------------ -------- ------------ ----------------  
ADDR_RESERVED (4) 5E6EEFEF 01005E6EEFEF 0000000000000000  
ADDR_UNICAST (8) 0A0B36E3 02000A0B36E3 DFCFA55F949BA608  
ADDR_CLOSED  
MacAdrs  
(5) 5E000104 01005E000104 0000000000000000  
RxOk RxCrc RxLost BadKey  
------------ ---------- ---------- ---------- ----------  
000000000000 0000000000 0000000000 0000000000 0000000000  
02000A0B36E3 0000000171 0000000000 0000000000 0000000000  
01005E6EEFEF 0000000012 0000000000 0000000000 0000000000  
030001000009 0000007651 0000000000 0000000000 0000000000  
030001020000 0000000476 0000000000 0000000000 0000000000  
030001010000 0000001419 0000000000 0000000000 0000000000  
Figure 86: Display Traffic Statistics screen  
To check performance enhancing proxy (PEP), at the Satellite  
Interface Statistics submenu enter G to select Display PEP  
Statistics. The screen in Figure 87 appears.  
Displaying PEP statistics  
TCP Spoofing Flag  
Rx PBP  
:Disabled  
:3  
:0  
:0  
:0  
:0  
:0  
:0  
:0  
Rx PBP Bad Checksum  
Tx PBP  
Rx TCP  
Rx TCP Bad Checksum  
Rx TCP Spoofed  
Rx TCP SYN Unspoofed  
Rx TCP Unspoofed  
Priority  
1
2
3
4
PBP Status  
Closed  
Closed  
Closed  
Closed  
PBP Rx Pkts  
PBP Tx Pkts  
PBP Rx SACK  
PBP Tx SACK  
PBP Rx RST  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PBP Tx RST  
PBP Snd/Rcv Win  
W2L limit/curr  
L2W limit/curr  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
0/ 0  
Figure 87: Display PEP Statistics screen  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
111  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
The Final Test Menu is not used by installers. It is used at the  
factory to ensure the various DW4020 components are functional.  
The menu is shown below.  
The Final Test Menu  
Final Test Menu:  
(a) LED Test Pattern  
(b) Ethernet Ports Test  
(c) Modem Signal Test  
(d) USB Port Test  
(g) Factory Information Read  
(z) Return to Main Menu  
Figure 88: Final Test Menu  
This section describes some other options in the Main Menu.  
Other options  
Display active routing table  
Menu Option (d) displays the current data in the Active  
Routing Table, shown in Figure 89. This data is read-only.  
Main Menu (<?/CR> for options): d  
Active Routing Table:  
Entry Destination Network Gateway Address  
Subnet Mask  
Main Menu (<?/CR> for options):  
Figure 89: Active Routing Table display  
Reset history Menu Option (h) displays the reset history for the DW4020 as  
shown in Figure 90. One of the most recent 8 reset logs may be  
displayed. Index 0 is the most recently logged reset.  
Time of Reset :  
Asserted at :  
Reset Type  
Reset Reason :  
THU JAN 01 05:47:35 1970  
t=tInterface ../../../source/sd/cim.c#1918:  
Valid Software Reset  
:
Manual reboot via Install Console rr command  
Figure 90: Reset history  
This data is read-only.  
Note that you reset the DW4020 by typing rr at the Main Menu  
prompt and pressing Enter. You can force the DW4020 to  
download new software keys by typing rd and pressing Enter.  
Reading factory information  
Option (g) displays read-only information from the manufacturer.  
This option automatically returns to the Final Test menu.  
Appendix C • Installing the DW4020 Manually  
1031484-0001 Revision 2  
112  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Appendix D  
Configuring the installer laptop for IP  
addressing  
This chapter explains how to configure your installer laptop PC  
so that you can register the DW4020. All DW4020s come from  
the factory with Dynamic Host Configuration Protocol (DHCP)  
enabled. Therefore, your installer laptop PC must have DHCP  
enabled and set to automatically obtain IP addresses..  
1. On the client computer, go to Start→Settings→Control Panel  
and double-click Network. See Figure 91.  
Note: On Windows ME computers, choose View All Control  
Panel Options to see the Network icon.  
Windows 98SE and ME  
2. A list of network components will be displayed. See  
Figure 92.  
Figure 91: Control Panel  
Appendix D • Configuring the installer laptop for IP addressing  
1031484-0001 Revision 2.a  
113  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Figure 92: Network window  
3. Select the TCP/IP entry associated with Network Interface  
Card (NIC) and then select Properties. The TCP/IP  
Properties window appears. See Figure 93.  
4. In the IP Address tab, select Obtain an IP address  
automatically.  
5. Select the Gateway tab. Remove any installed gateways by  
selecting them and selecting Remove. See Figure 94.  
6. Select the Disable DNS radio button on the DNS  
Configuration tab.  
7. Select OK to accept the updates for the TCP/IP properties  
Appendix D • Configuring the installer laptop for IP addressing  
1031484-0001 Revision 2.a  
114  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
8. Select OK to close the list of network components. Windows  
may request the installation CD-ROM to complete updating  
the TCP/IP settings.  
9. Restart the computer if it does not do so automatically.  
Figure 93: TCP/IP Properties  
Figure 94: Gateway tab  
Appendix D • Configuring the installer laptop for IP addressing  
1031484-0001 Revision 2.a  
115  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
1. On the client computer, go to Start→Settings→Control Panel  
and double-click Network and Dial-up Connections.  
2. A list of network adapters appears. See Figure 95. The Local  
Area Connection adapter must be listed. If it is not, the  
network is not installed correctly.  
Windows 2000  
3. Right-click the Local Area Connection icon that represents  
the network adapter that connects the computer to the  
DW4020 and select Properties. The Local Area Connections  
Properties window appears. See Figure 96.  
4. Ensure that the Client for Microsoft Networks and Internet  
Protocol (TCP/IP) are installed and checked. If NetBEUI is  
installed, uninstall it.  
Figure 95: Network and Dial-up Connections  
Figure 96: Local Area Connection Properties  
Appendix D • Configuring the installer laptop for IP addressing  
1031484-0001 Revision 2.a  
116  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
5. Select Internet Protocol (TCP/IP). Be careful not to uncheck  
the checkbox.  
6. Select the Properties button. The Internet Protocol Properties  
window appears. See Figure 97.  
7. Ensure that both Obtain an IP Address Automatically and  
Obtain DNS Server Address Automatically are selected. If  
not, select them.  
8. Select OK to close the open dialog boxes and finish the  
configuration.  
9. Restart the computer even if Windows does not require you to  
do so. This will ensure that the network settings are  
automatically reset.  
Figure 97: Internet Protocol Properties  
Appendix D • Configuring the installer laptop for IP addressing  
1031484-0001 Revision 2.a  
117  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
1. Go to Start→Settings→Control Panel. Double-click the  
Network and Dial-up Connections icon.  
Windows XP  
Note: If the Control Panel is in category view select Network and  
Internet Connections then select Network Connections.  
2. A list of network adapters will be displayed. A Local Area  
Connection must be listed under LAN or High-Speed  
Internet. If not, the network is not installed correctly. See  
Figure 98.  
3. Right-click the Local Area Connection icon that represents  
the Network adapter that connects the computer to the  
Satellite Gateway and select Properties.  
Note: If the Local Area Connection icon appears with a red X  
then check your connections. The red X must not be present in  
order for you to be successful.  
4. Ensure that the Client for Microsoft Networks and Internet  
Protocol (TCP/IP) are installed and checked. If NetBEUI is  
installed, uninstall it. See Figure 99.  
5. Select Internet Protocol (TCP/IP) and select Properties. See  
Figure 100.  
Note: Be careful not to uncheck the Internet Protocol when you  
select it  
6. Ensure that both Obtain an IP address automatically and  
Obtain DNS server address automatically options are  
selected. If not, select them.  
7. Select OK to close the open dialog boxes and finish the  
configuration.  
Restart the computer even if Windows does not require you to do  
so to ensure that the network settings are automatically reset.  
Figure 98: Network Connections  
Appendix D • Configuring the installer laptop for IP addressing  
1031484-0001 Revision 2.a  
118  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Figure 99: Local Area Connection Properties  
Figure 100: Internet Protocol Properties  
Appendix D • Configuring the installer laptop for IP addressing  
1031484-0001 Revision 2.a  
119  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Appendix D • Configuring the installer laptop for IP addressing  
1031484-0001 Revision 2.a  
120  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix E  
Installation checklist  
The following DW4020 components are installed:  
Installation summary  
and checklist  
• Antennas (outdoor unit or ODU)  
• Coaxial cable (IFL)  
• DW4020  
The main tasks required to install an DW4020 are summarized  
below. For Web commissioning, the customer should have an  
analog phone line and a functioning Ethernet interface.  
Assemble the DW4020 components. These consist of the receive and transmit  
modems, and the Gateway.  
Connect the DW4020 to installer laptop PC Ethernet and power up DW4020.  
Connect the installer laptop PC via USB and run Websetup to establish operating  
parameters.  
Register the end user and select subscription options via Websetup.  
Record site ID, Gateway IP address, subnet mask, and service offering on cover  
of User Guide.  
Transfer of parameter information to Gateway. Exit Websetup.  
Assemble and install the satellite antenna. Run cables from the outdoor components  
to the indoor equipment. Clearly label the receive and transmit coaxial cable at the  
antenna, ground block, and modem connectors.  
Complete antenna pointing and auto cross-polarization (ACP).  
Disconnect installer laptop PC and connect the Gateway to the receive modem  
with USB cable. Connect the customer computer to the Gateway via Ethernet  
cable.  
Verify customer operation, information recorded on User Guide cover, and  
receive and transmit cable labeling. Optional: assist in customer computer  
configuration.  
Appendix E • Installation checklist  
1031484-0001 Revision 2  
121  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Appendix E • Installation checklist  
1031484-0001 Revision 2  
122  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
I
Indoor Receive Unit (IRU)) 1  
Indoor Transmit Unit (ITU) 1  
Installation checklist (summary) 121  
Installation Menu 103  
Internet Assigned Numbers Authority (IANA) 72  
Internet Protocol 71  
IP addressing 72  
A
Active Routing Table 112  
Antenna Pointing - Receiver 28, 104  
Antenna Pointing - Transmitter, Automatic 106  
antennas 6  
Auto cross-pol 29  
B
L
blink patterns 60  
Boot Parameters 95  
local area network 2  
M
C
manual cross-pol 28  
modems’ LEDs 18, 86  
categories of hosts 74  
Checklist  
installation tasks 121  
N
Component stack 15, 81  
Components to be installed 121  
Configuring Boot Parameters 101  
Connectivity Test Menu 47  
null modem serial cable 11, 77  
P
packet error probability (PEP) 111  
part number label 2  
D
physical characteristics 2  
power supply 12, 78  
Private address space 74  
private address space 75  
private hosts 74  
Private IP addresses 74  
public hosts 74  
dotted decimal notation 72  
DW4020 1, 5  
E
enterprise 72  
Ethernet 5  
Ethernet port LEDs 20, 62, 94  
R
G
Range value 107  
Receive modem 1  
receive modem 5  
Receive Status 42  
registration 23  
reset history 112  
router 2, 75  
Gateway 1, 5  
Gateway LED 17, 85  
H
hardware characteristics 2  
heat dissipation 5  
host 72  
RxCode 53  
• Index  
1031484-0001 Revision 2  
123  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
S
Service Offerings 23  
Software Configuration section 46  
subnet mask 76  
Summary of installation 121  
System Information 45  
T
Task checklist 121  
TCP spoofing. 72  
TCP/IP internet protocol suite 71  
The Home screen 35  
transmission control protocol 71  
Transmit modem 1  
transmit modem 5  
Transmit Status 37  
Turbo Intranet 71  
TxCode 53  
U
User Interface is accessed 34  
V
Verifying correct DW4020 operation 110  
Verifying software download 108  
W
Websetup 22  
• Index  
1031484-0001 Revision 2  
124  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Hamilton Beach Juicer 67608 User Manual
Hamilton Beach Mixer 840106200 User Manual
Harbor Freight Tools Paint Sprayer 45001 User Manual
Harbor Freight Tools Portable Generator 68120 User Manual
Hasbro Games GIJoe NightRay User Manual
HP Hewlett Packard Server tc2100 User Manual
HP Hewlett Packard Thermometer 11941A User Manual
HP Hewlett Packard TV Mount 699728 001 User Manual
IBM Computer Drive P09N4108 User Manual
IDEAL INDUSTRIES Boiler 30 User Manual