Quatech Network Card DSCLP 100 User Guide

DSCLP/SSCLP-100  
Two Channel Low Profile RS-232  
Asynchronous Communications Adapter  
for PCI bus  
User's Manual  
QUATECH, INC.  
662 Wolf Ledges Parkway  
Akron, Ohio 44311  
TEL: (330) 434-3154  
FAX: (330) 434-1409  
Download from Www.Somanuals.com. All Manuals Search And Download.  
WARRANTY INFORMATION  
Quatech, Inc. warrants the DSCLP-100 or SSCLP-100 to be free of defects for  
five (5) years from the date of purchase. Quatech, Inc. will repair or replace any board that fails to  
perform under normal operating conditions and in accordance with the procedures outlined in this  
document during the warranty period. Any damage that results from improper installation, operation, or  
general misuse voids all warranty rights.  
Please complete the following information and retain for your records. Have this information  
available when requesting warranty service.  
DATE OF PURCHASE:  
MODEL NUMBER:  
DSCLP-100 or SSCLP-100  
PRODUCT DESCRIPTION: Two or One Channel Low Profile RS-232  
Asynchronous PCI Bus  
Communications Adapter  
SERIAL NUMBER:  
DSCLP/SSCLP-100 User's Manual  
i
Download from Www.Somanuals.com. All Manuals Search And Download.  
Declaration of Conformity  
Manufacturer's Name:  
Quatech Inc.  
Manufacturer's Address:  
662 Wolf Ledges Parkway  
Akron, Ohio 44311 (USA)  
Application of Council Directive:  
89/336/EEC  
Standards to which  
Conformity is Declared:  
* EN50081-1 (EN55022,  
EN60555-2, EN60555-3)  
* EN50082-1 (IEC 801-2,  
IEC 801-3, & IEC 801-4)  
Type of Equipment:  
Equipment Class:  
Product Name:  
Information Technology  
Equipment  
Commercial, Residential, & Light  
Industrial  
PCI Quad Serial Communications  
Card  
Model Number :  
DSCLP-100  
ii  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Table of Contents  
1 General Information  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
2 Hardware Configuration  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
2.1 Factory Default Configuration  
2.2 Enable Scratchpad Register (SPAD, J2)  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
2.3 Force High-Speed UART Clock (X2 or X4, J4-J5)  
. . . . . . . . . . . . . . . . . . 3  
3 Hardware Installation  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
4 Address Map and Special Registers  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
4.1 Base Address and Interrupt Level (IRQ)  
4.2 Enabling the Special Registers  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
4.3 Interrupt Status Register  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
4.4 Options Register  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
4.4.1 Enhanced Serial Adapter Identification  
. . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
4.4.2 Clock Rate Multiplier  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
5 Windows Configurations  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
5.1 Windows Millennium  
5.2 Windows 2000  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
5.3 Windows 98  
5.4 Windows 95  
5.5 Using the "New Hardware Found" Wizard  
5.6 Viewing Resources with Device Manager  
. . . . . . . . . . . . . . . . . . . . . . . . . 14  
. . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
6 Other Operating Systems  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
6.1 Windows NT  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
6.2 OS/2  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
6.3 DOS and other operating systems  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
6.3.1 QTPCI.EXE  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
7 External Connections  
8 PCI Resource Map  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
9 Specifications  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
10 Troubleshooting  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
DSCLP/SSCLP-100 User's Manual  
iii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
1 General Information  
The Quatech, Inc. DSCLP-100 (two-port) and SSCLP-100 (one-port)  
provides upto two RS-232 asynchronous serial communication interfaces for Low  
Profile IBM-compatible personal computer systems using the PCI expansion bus. The  
DSCLP-100 uses Quatech's new Enhanced Serial Adapter design. Legacy serial port  
data rates are limited to a maximum of 115,200 bits per second. This discussion relates  
to DSCLP-100. A SSCLP-100 is just one port in the discussion.  
As a PCI device, the DSCLP-100 requires no hardware configuration. The  
card is automatically configured by the computer's BIOS or operating system. The two  
serial ports share a single interrupt line and are addressed in a contiguous block of 16  
bytes. A special interrupt status register is provided to help software to manage the  
shared interrupt.  
The DSCLP-100's serial ports are implemented using 16550 Universal  
Asynchronous Receiver/Transmitters (UARTs). These UARTs contain hardware  
buffers (FIFOs) which reduce processing overhead and allow higher data rates to be  
achieved.  
The DSCLP-100 is supported under several popular operating systems and  
environments. Contact the sales department for details on current software offerings.  
Most device drivers are available for download from the Quatech world wide web site  
DSCLP/SSCLP-100 User's Manual  
1
Download from Www.Somanuals.com. All Manuals Search And Download.  
2 Hardware Configuration  
The DSCLP-100 is automatically configured at boot time by the computer's  
BIOS or operating system. There are no required switches or jumpers to set for  
installation.  
This chapter lists a number of optional jumper settings that control various  
hardware features. Jumpers J2, J4-J5 are grouped together at the end of the board  
opposite the HD-44 connector. Any changes from the factory default should be made  
before installing the DSCLP-100 in the computer.  
2.1 Factory Default Configuration  
Figure 2 shows the jumper configuration as shipped from the factory, with two  
spare jumpers applied in neutral positions. Remove one or both and apply as shown in  
following sections to set optional features.  
SPAD  
J2  
X4  
X2  
J4  
J5  
Figure 2 --- Factory default jumper configuration  
2.2 Enable Scratchpad Register (SPAD, J2)  
In the default configuration, an Interrupt Status Register and an Options Register  
(see page 0) replace the scratchpad (base address + 7) of each UART. If the SPAD  
jumper is applied as in Figure 3, the UART scratchpad registers are enabled, and the  
Interrupt Status Register and the Options Register are not available.  
SPAD  
J2  
X4  
X2  
J4  
J5  
Figure 3 --- Enable scratchpad registers  
2.3 Force High-Speed UART Clock (X2 or X4, J4-J5)  
2
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
These jumpers force an increase of the UART input clock frequency by a factor  
of two or four. This feature can allow legacy software to use baud rates above  
115,200 bits per second. It is also useful if the serial port device driver does not  
directly support setting the higher baud rates through the Options Register (see page 0).  
If one of these jumpers is applied, it overrides any value written to the Options  
Register to set the clock multiplier by software. The effective baud rate will be either  
two or four times the value for which the UART itself is programmed.  
The factory default is none of these jumpers applied, which allows for software  
control of the clock multiplier via the Options Register. The Options Register powerup  
default is for a standard times-1 clock of 1.8432 MHz for compatibility with standard  
serial ports.  
Figure 4 --- Clock multiplier jumper options  
SPAD  
J2  
J2  
SPAD  
X4  
X2  
X4  
X2  
J4  
J5  
J4  
J5  
Force times-two clock  
Baud rates up to 230.4 kbps  
Factory default  
software control  
J2  
SPAD  
X4  
X2  
J4  
J5  
Force times-four clock  
Baud rates up to 460.8 kbps  
DSCLP/SSCLP-100 User's Manual  
3
Download from Www.Somanuals.com. All Manuals Search And Download.  
3 Hardware Installation  
1. Turn off the power of the computer system in which the DSCLP-100 is to be  
installed.  
2. Remove the system cover according to the instructions provided by the  
computer manufacturer.  
3. Make any desired optional jumper setting changes.  
4. Install the DSCLP-100 in any empty PCI expansion slot. The board should be  
secured by installing the Option Retaining Bracket (ORB) screw.  
5. Replace the system cover according to the instructions provided by the  
computer manufacturer.  
6. Attach and secure the cable connectors to the desired equipment.  
7. Turn on the power of the computer system.  
The output of the DSCLP-100 is a 25-pin D-connector. A cable is provided  
to convert the D-25 into two standard male D-9 connectors with all control signals  
provided to each port (RTS, DTR, CTS, DSR, DCD, and RI).  
Clock multiplier/  
s cratchpad s e le ct  
J 2  
J 4  
J 5  
SPAD  
X4  
X2  
Figure 5 --- Jumper/connector locations  
4
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
(This page intentionally blank.)  
DSCLP/SSCLP-100 User's Manual  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
4 Address Map and Special Registers  
This chapter explains how the two UARTs and special registers are addressed,  
as well as the layout of those registers. This material will be of interest to programmers  
writing driver software for the DSCLP-100.  
4.1 Base Address and Interrupt Level (IRQ)  
The base address and IRQ used by the DSCLP-100 are determined by the  
BIOS or operating system. Each serial port uses 8 consecutive I/O locations. The two  
ports reside in a single block of I/O space in eight byte increments, for a total of 16  
contiguous bytes, as shown in Figure 5.  
Port  
I/O Address Range  
Serial 1  
Serial 2  
Base Address + 0  
Base Address + 8  
to Base Address + 7  
to Base Address + 15  
Figure 6 --- Port Address Map  
All two serial ports share the same IRQ. The DSCLP-100 signals a hardware  
interrupt when any port requires service. The interrupt signal is maintained until no port  
requires service. Interrupts are level-sensitive on the PCI bus.  
The base address and IRQ are automatically detected by the device drivers  
Quatech supplies for various operating systems. For cases where no device driver is  
available, such as for operation under DOS, Quatech supplies the "QTPCI" DOS  
software utility for manually determining the resources used. See page 0 for details.  
6
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
4.2 Enabling the Special Registers  
The DSCLP-100 contains two unique registers, an Interrupt Status Register  
and an Options Register. These registers are enabled when the SPAD jumper (J6) is  
removed (factory default). They replace the UART Scratchpad Register on accesses to  
register address 7.  
The Interrupt Status Register and Options Register are accessed through the  
scratchpad location of any UART. The DLAB bit of the UART (Line Control Register,  
bit 7) is used to select between the two registers. The most recent write of a DLAB bit  
in any UART selects between the two registers as shown in Figure 6.  
Register selected for  
DLAB Bit  
SPAD Jumper  
address 7 accesses  
Interrupt Status Register  
Options Register  
0
1
X
removed  
removed  
applied  
Scratchpad Registers  
Figure 7 --- DLAB bit selects between special registers  
4.3 Interrupt Status Register  
The read-only Interrupt Status Register can be used to quickly identify which  
serial ports require servicing after an interrupt. Reading the Interrupt Status Register will  
return the interrupt status of the entire DSCLP-100, as shown in Figure 7. The  
individual bits are cleared as the interrupting ports are serviced. The interrupt service  
routine should ensure that the interrupt status register reads zero before exiting.  
Bit  
Description  
0 (not used)  
7 (MSB)  
6
5
4
3
2
1
0
0 (not used)  
0 (not used)  
0 (not used)  
Port 4 --- 1 if interrupt pending  
Port 3 --- 1 if interrupt pending  
Port 2 --- 1 if interrupt pending  
Port 1 --- 1 if interrupt pending  
Figure 8 --- Interrupt Status Register  
DSCLP/SSCLP-100 User's Manual  
7
Download from Www.Somanuals.com. All Manuals Search And Download.  
4.4 Options Register  
The Options Register allows software to identify the DSCLP-100 as a Quatech  
Enhanced Serial Adapter. It also allows software to set the UART clock rate multiplier.  
Figure 8 shows the structure of the Options Register.  
The powerup default of the Options Register is all bits zero.  
Bit  
Name  
Description  
ID bit 1  
7 (MSB)  
ID1  
6
5
4
3
2
1
0
ID0  
ID bit 0  
-
(reserved, 0)  
-
-
(reserved, 0)  
(reserved, 0)  
-
(reserved, 0)  
RR1  
RR0  
Clock rate multiplier bit 1  
Clock rate multiplier bit 0  
Figure 9--- Options Register bit definitions  
4.4.1 Enhanced Serial Adapter Identification  
The ID bits are used to identify the DSCLP-100 as a Quatech Enhanced Serial  
Adapter. Logic operations are performed such that the values read back from these  
bits will not necessarily be the values that were written to them. Bit ID1 will return the  
logical-AND of the values written to ID[1:0], while bit ID0 will return their  
exclusive-OR.  
Software can thus identify a Quatech Enhanced Serial Adapter by writing the  
ID bits with the patterns shown in the "write" column of Figure 9, then reading the bits  
and comparing the result with the patterns in the "read" column. Matching read patterns  
verify the presence of the Options Register.  
Write  
Read  
ID1  
ID0  
0
1
0
1
ID1  
ID0  
0
1
1
0
0
0
1
1
0
0
0
1
Figure 10 --- ID bit write/read table  
8
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
4.4.2 Clock Rate Multiplier  
A standard RS-232 serial port operates at a clock speed of 1.8432 MHz. In  
order to achieve higher data rates, Quatech Enhanced Serial Adapters can operate at  
two times, four times or even eight times this standard clock speed. This is controlled  
by the clock rate multiplier bits in the Options Register.  
Software can determine the UART clock frequency by reading the clock rate  
multiplier bits RR1 and RR0 in the Options Register as shown in Figure 10. RR1 and  
RR0 can be set by writing to the Options Register if the X2 and X4 jumpers (J4-J5) are  
all removed. This card has the 16550 UART. If one of these jumpers is applied, the  
RR1 and RR0 bits are forced to the appropriate value. Reading the Options Register  
will always return the clock rate multiplier at which the board is operating.  
Clock Rate  
Multiplier  
X1  
(default)  
X2  
UART Clock  
Frequency  
Maximum Data  
Rate  
RR1 RR0  
0
0
1.8432 MHz  
115.2 kbaud  
0
1
1
1
0
1
3.6864 MHz  
7.3728 MHz  
14.7456 MHz  
230.4 kbaud  
460.8 kbaud *  
921.6 kbaud *  
X4  
X8  
* 16750 UART only  
Figure 11 --- Rate Register bit definition  
At powerup and reset, the Options Register is initialized to 0. The DSCLP-100  
will thus powerup in the x1 mode with software control of the clock rate multiplier  
enabled as long as the X2, X4, and X8 jumpers are not installed.  
Software can control high baud rates through a combination of changing the  
clock rate multiplier and the UART baud rate divisor. For example, a baud rate of  
230.4 kbps could be achieved by setting the clock rate multiplier to X2 mode (or by  
applying the X2 jumper) and setting a software application for 115.2 kbps.  
DSCLP/SSCLP-100 User's Manual  
9
Download from Www.Somanuals.com. All Manuals Search And Download.  
5 Windows Configurations  
5.1 Windows Millennium  
1. After inserting the DSCLP-100 for the first time the "Add New Hardware  
Wizard" will begin. Select "Search for the best driver for your device.". Check the  
"Removable media" and "Specify location" box. Click the "Next" button.  
3. Window will locate the proper INF file and copy the file from the CD. Click  
the "Next" button.  
4. The final dialog screen will verify the file copy from the CD. Click the  
"Finish" button.  
10  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
5.2 Windows 2000  
1.  
After inserting a DSCLP-100 for the first time, the "Add New Hardware  
Wizard will appear at start up. Click the "OK" button.  
2. The following dialog box insert the Quatech COM CD (shipped with the  
device).  
Click the "OK" button.  
4.  
5.  
The following dialog box will display the appropriate INF file on the CD in  
drive. Click the "OK" button.  
Window will copy the INF file from the CD and display a final dialog  
indication that the process is complete. Click the "Finish" button.  
DSCLP/SSCLP-100 User's Manual  
11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
5.3 Windows 98  
1.  
After inserting a DSCLP-100 for the first time, the "Add New Hardware  
Wizard will appear at start up. Click the "Next" button.  
2. Select "Search for the best driver for you device". Click the "Next" button.  
3.  
Quatech  
COM CD (shipped with the device) into the CD-ROM drive.  
Click the "Next" button.  
On the next dialog, select the "CD-ROM DRIVE" check box. Insert the  
12  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
4.  
5.  
The following dialog box will display the appropriate INF file on the diskette in  
drive. Click the "Next" button.  
Window will copy the INF file from the diskette and display a final dialog  
indication that the process is complete. Click the "Finish" button.  
Windows 95 maintains a registry of all known hardware installed in your  
computer. Inside this hardware registry Windows 95 keeps track of all of your system  
resources, such as I/O locations, IRQ levels, and DMA channels. The "Add New  
Hardware Wizard" utility in Windows 95 was designed to add new hardware and  
update this registry.  
An "INF" configuration file is included with the DSCLP-100 to allow easy  
configuration in the Windows 95 environment.  
5.4 Windows 95  
5.5 Using the "New Hardware Found" Wizard  
The following instructions provide step-by-step instructions on installing the  
DSCLP-100 in Windows 95 using the "New Hardware Found" wizard.  
1. After booting the computer with a newly-installed DSCLP-100, the "New  
Hardware Found" dialog box will appear. If you have never installed a Quatech  
PCI communications adapter before, the dialog box may simply indicate that it  
has found a "PCI Card."  
DSCLP/SSCLP-100 User's Manual  
13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
2. Select the radio button for "Driver from disk provided by hardware  
manufacturer." Click the "OK" button to continue.  
3. An "Install From Disk" dialog box should pop up. Insert the diskette with the  
Quatech INF files on it, select the correct drive letter, and click the "OK"  
button. Windows 95 automatically browses the root directory for an INF file  
that defines configurations for Multi-function Adapters. If no INF files are  
found, click the "Browse" button and search the Win95 sub directory on the  
installation diskette. You are not required to select the file name. After finding  
the directory containing the INF files, Windows 95 will choose the correct file.  
4. The "New Hardware Found" dialog box will appear again, this time for an  
"Unknown Device."  
5. Again select the radio button for "Driver from disk provided by hardware  
manufacturer." Click the "OK" button to continue.  
6. Another "Install From Disk" dialog box will pop up. The path should already be  
pointing to the Quatech diskette. Click the "OK" button to continue.  
7. You should now see the "Copying Files" dialog box as Windows 95 copies the  
driver files from the diskette.  
8. The installation utility will ask for your Windows 95 installation disks. Serial  
communication ports require two drivers supplied by Microsoft to function:  
SERIAL.VXD and SERIALUI.DLL. Insert the disk or CD and click "OK".  
NOTE:  
You may be able to skip this step if you are certain that your system has the  
latest version of these files installed. If you do not have your Windows 95 install  
disks immediately available, click "OK" anyway. A dialog box appears with an  
option to Skip the files. Click the Skip button and the files will not be installed.  
This is all right if the latest version of these drivers are currently in the  
\WINDOWS\SYSTEM directory.  
9. The "New Hardware Found" dialog will repeat for each of the serial ports on  
the DSCLP-100 as each port is registered with Windows 95.  
10. Installation is complete.  
5.6 Viewing Resources with Device Manager  
14  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
The following instructions provide step-by-step instructions on viewing  
resources used by the DSCLP-100 in Windows 95 using the "Device Manager" utility.  
Select Start|Help from within Windows 95 for additional information on this utility.  
1. Double click the "System" icon inside the Control Panel folder. This opens up  
the System Properties box.  
2. Click the "Device Manager" tab located along the top of the System Properties  
box. This lists all hardware devices registered inside the Windows 95 registry.  
Additional information is available on any of these devices by click on the  
device name and then selecting the "Properties" button.  
3. Double click the device group "Multi-function Adapters". The DSCLP-100  
model name should appear in the list of Multi-function adapters.  
4. Double click the DSCLP-100 model name and a properties box should open  
for the hardware adapter.  
5. Click the "Resources" tab located along the top of the properties box to view  
the resources Windows 95 has allocated for the DSCLP-100 match the  
hardware configuration. Because PCI is a true plug-and-play bus, do not  
attempt to modify the configuration values listed. Click "Cancel" to exit  
without making changes.  
DSCLP/SSCLP-100 User's Manual  
15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Figure 13--- Windows 95 Device Manager  
6. The DSCLP-100 serial ports are also listed under the group Ports (COM and  
LPT). Windows 95 does not assign COM1-COM4 to ports addressed at  
nonstandard locations. The DSCLP-100 ports will be enumerated starting with  
COM5 (or higher) even if lower logical numbers are available.  
7. Select any of the Quatech Serial Ports listed under the group Port (COM and  
LPT) and click the "Properties" button. This action opens a properties dialog  
for the specific COM port on the DSCLP-100.  
8. Click the "Port Settings" tab and then click the "Advanced" button. The  
DSCLP-100 driver will display a custom Advanced Port Settings control,  
which allows the ports UART compatibility mode and FIFO threshold levels to  
be configured. The threshold values of full-scale for the transmit buffer and  
3/4-scale for the receive buffer shown below are optimal for most applications.  
Note that the FIFO option for each of the DSCLP-100's two ports is  
configured independently.  
16  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Figure 14 --- Windows 95 Device Manager  
9. Use the Logical COM Port names to access the serial ports on your  
DSCLP-100 through your software applications. Note: The Logical COM  
Port name is assigned to your ports by Windows 95. This name is required by  
a Windows 95 application when accessing a particular p  
DSCLP/SSCLP-100 User's Manual  
17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
6 Other Operating Systems  
Device drivers for Windows NT and OS/2 are also available for the  
DSCLP-100. The board can be used under DOS and other operating systems as well  
in many circumstances. The software described below can be downloaded from the  
Quatech web site if it did not come with the board.  
6.1 Windows NT  
The Windows NT device driver is installed by running the SETUP program.  
Up to 256 serial ports are supported. There is a command line-based configuration  
utility which is used for adding PCI bus and ISA bus serial ports. Please refer to the  
documentation included with the device driver for full installation and configuration  
details.  
6.2 OS/2  
The OS/2 device driver supports up to 32 serial ports in a system. Installation  
is a manual, but simple, process. Please refer to the documentation included with the  
device driver for full installation and configuration details.  
6.3 DOS and other operating systems  
The DSCLP-100 is not a direct drop-in replacement for a legacy serial port  
because its base address and IRQ cannot be fixed at values such as 3F8 hex, IRQ 4  
(COM1) or 2F8 hex, IRQ 3 (COM2), etc. Rather, the system BIOS assigns the  
address and the IRQ in a plug-and-play fashion at boot time. Software which is to use  
the DSCLP-100 must be able to accommodate any valid assignments of these  
resources.  
For Windows 95/98/2000/ME, Windows NT and OS/2, the Quatech device  
drivers determine what the resource assignments are and proceed accordingly. In other  
cases, however, the user must intervene. The discussion below will center on DOS, but  
the concepts can be applied to other operating systems as well.  
Many DOS applications support user configuration of the base address and  
IRQ of a serial port. Such applications can generally make use of the DSCLP-100.  
Older applications, as well as some custom software, may use hard-coded standard  
legacy serial port addresses. These applications will require modifications if they are to  
use the DSCLP-100.  
Custom applications for which the customer has source code can be modified  
to make just a few PCI BIOS function calls to obtain all the necessary configuration  
information. The PCI BIOS specification can be obtained from the PCI Special  
Interest Group. Contact Quatech technical support for more information.  
6.3.1 QTPCI.EXE  
18  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Quatech's "QTPCI" utility supplies the information required when modifying the  
serial port settings of the application. This program should be run from real DOS, not in  
a Windows DOS box.  
Figure 13 shows the Basic Mode display for the DSCLP-100 after the "Q" key  
has been pressed. In this example, the DSCLP-100 uses I/O base address FF80 hex  
and IRQ 11. The hardware revision of the DSCLP-100 is also displayed. Pressing the  
"N" key will show similar information for all non-Quatech PCI devices in the system,  
including those devices integrated on the motherboard.  
The QTPCI program is capable only of displaying the PCI configuration. It  
cannot be used to make changes.  
Figure 14 --- QTPCI.EXE Basic Mode display  
Figure 14 shows the Expert Mode display for the DSCLP-100 after the "Q"  
key has been pressed. The information from the Basic Mode display is presented along  
DSCLP/SSCLP-100 User's Manual  
19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
with more details such as the Vendor and Device IDs, PCI Class Code, size of memory  
and I/O regions, etc. Pressing the "N" key will show similar information for all  
non-Quatech PCI devices in the system, including those devices integrated on the  
motherboard. In this example, the "Base addr 0" resource is reserved.  
For users interested in even more details, PCI BIOS information can be  
displayed by pressing the "B" key. Pressing the "I" key displays the PCI interrupt  
routing table.  
Figure 15 --- QTPCI.EXE Expert Mode display  
20  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
7 External Connections  
RS-232-C devices are classified by their function as either Data Terminal  
Equipment (DTE) or Data Communication Equipment (DCE). Generally, data terminal  
equipment is defined as the communication source and data communication equipment  
is defined as the device that provides a communication channel between two DTE-type  
devices.  
Terminal  
DTE  
Modem  
DCE  
RS-232-C  
RS-232-C  
Telephone  
line  
Terminal  
DTE  
Modem  
DCE  
Figure 16 --- Use of DTEs and DCEs in a communications link  
DTE- and DCE-type devices have complementary pinouts to allow terminals  
and modems to be connected directly using a one-to-one cable as shown in Figure 16.  
In many applications, DCEs are unnecessary, and in these cases a cable called a "null  
modem cable" or "modem eliminator cable" is used to directly connect two DTE-type  
devices. A typical null modem cable is also shown in Figure 16.  
(3)  
(2)  
(4) RTS  
(5)  
(20)  
(6)  
(8)  
(22) RI  
(7)  
(3) RxD  
(3)  
(2)  
(4)  
(5)  
(20)  
(6)  
RxD  
TxD  
TxD (3)  
RxD (2)  
RxD  
TxD  
RTS  
CTS  
DTR  
DSR  
(2)  
(4)  
TxD  
RTS  
(4)  
CTS  
(5) CTS  
(20) DTR  
CTS  
DTR  
DSR  
DCD  
RTS (5)  
DSR (20)  
(6)  
DTR  
DCD (8)  
(6)  
(8)  
DSR  
DCD  
DCD (8)  
(22)  
GND (7)  
(22) RI  
(7)  
RI  
RI  
GND  
(22)  
(7)  
GND  
GND  
Typical DTE-to-DCE cable  
Typical DTE-to-DTE null modem cable  
Figure 17 --- Cabling requirements for RS-232-C devices  
(cables using 25-pin connectors shown)  
DSCLP/SSCLP-100 User's Manual  
21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
The DSCLP-100 is a DTE device which connects to peripheral equipment  
through a single male D-25 connector, or using the adapter cable, two male D-9  
connectors. The standard serial port connections are listed in Figure 17.  
Port 1  
Port 2  
RS-232  
Signal  
D-25 D-9 D-25 D-9  
TxD  
RxD  
RTS  
CTS  
DTR  
DSR  
DCD  
RI  
2
3
3
2
7
8
4
6
1
9
5
9
3
2
7
8
4
6
1
9
5
10  
11  
12  
19  
13  
25  
23  
1
4
5
20  
6
8
22  
7
GND  
Figure 18 --- DSCLP-100 connector pinouts  
22  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8 PCI Resource Map  
Listed below are the PCI resources used by the DSCLP-100. Such  
information may be of use to customers writing their own device drivers or other custom  
software. A detailed description of the DSCLP-100's UARTs is available on the  
Quatech web site.  
(all numbers in hex)  
PCI Vendor ID:  
0x135C  
Quatech, Inc.  
PCI Device ID:0x0180DSCLP-100  
PCI Device ID:0x0190SSCLP-100  
PCI Class Code  
Base class:  
Subclass:  
Interface:  
0x07  
0x02  
0x00  
Simple communications controller  
Multiport serial controller  
IRQ sourced by:  
Base address 0:  
Base address 1:  
Base address 2:  
INTA#  
0x80 bytes Mem Reserved region  
0x80 bytes I/O  
0x10 bytes I/O  
Reserved region  
Serial ports(DSCLP-100)  
Port 1 at offset 0x00  
Port 2 at offset 0x08(DSCLP-100)  
DSCLP/SSCLP-100 User's Manual  
23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
9 Specifications  
Bus interface:  
PCI, 32-bit bus, 5-volt only  
IBM-compatible computers  
Dimensions:  
approx. 5.0" x 3.7"  
Serial ports  
Controller:  
16550 with 16-byte FIFOs  
Interface:  
One male D-25 connector  
Two male D-9 connectors  
using adapter cable  
Transceivers:  
ICL3245CA  
High-level output: +5V min  
Low-level output: -5V max,  
Switching speed  
Power requirements  
+3.3  
+/-12 volts:  
volts:  
approx. 250 mA  
approx. 35 mA  
Temperature:  
operating 0° to 70°  
storage -50° to 80°  
Humidity:  
10% to 90%  
24  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Maximum Load (pF)  
Data Rate  
(kbaud)  
4%  
trans  
time  
N/A  
100  
330  
800  
10%  
15%  
trans  
time  
300  
670  
20%  
trans  
time  
430  
900  
25%  
trans  
time  
trans  
time  
100  
430  
900  
921.6  
460.8  
230.4  
115.2  
470  
1100  
2000  
4800  
1100  
3300  
1630  
4300  
1570  
Note 1: The signal transition time ratio is defined as the percentage of the unit  
interval or bit time (the inverse of the data rate) that is occupied by the signal  
transitioning from -3V to +3V. The EIA/TIA-232-E standard defines a  
maximum signal transition time ratio of 4%; most RS-232 receivers will  
recognize signal transitions with much larger ratios. With a 4% signal transition  
time ratio, EIA/TIA-232-E is limited to a theoretical data rate of 200 kbaud. If  
maximum signal transition time ratio is extended to 10%, 15%, 20%, or even  
25%, the maximum data rate achievable using EIA/TIA-232-E can be  
increased past 200 kbaud.  
Note 2: A typical value for capacitance per foot of standard cable is 50 pF/ft.  
DSCLP/SSCLP-100 User's Manual  
25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10 Troubleshooting  
Listed here are some common problems and frequent causes of those  
problems. If the information here does not provide a solution, contact Quatech  
technical support.  
Any unauthorized repairs or modifications will void the DSCLP-100's warranty.  
Computer will not boot up.  
1. Is the DSCLP-100 properly inserted? Remove the card and try again.  
Perhaps try a different expansion slot.  
2. Ensure that an ISA-bus card is not using the same IRQ that the PCI BIOS tries  
to assign to the DSCLP-100. Most computers have BIOS setup options to  
reserve IRQs for either ISA or PCI use. Try reserving the IRQ for the ISA  
card. The BIOS will automatically choose a different IRQ for the DSCLP-100.  
An address conflict is unlikely because most PCI-based computers will assign  
I/O addresses in such a way that they cannot conflict with ISA-bus devices.  
3. The DSCLP-100 may be defective. Contact technical support for instructions.  
Cannot communicate with other equipment.  
1. Are the cable connections correct? Are the cables securely attached?  
2. Is the software configured with the correct base address and IRQ information  
for the DSCLP-100? (This is mainly a DOS issue.)  
3. Is the device driver installed?  
4. If you are trying to communicate with another DTE, a null-modem cable will be  
required.  
5. If possible, use a loopback connector to test the port. This connector needs to  
connect the following sets of signals on a D-9 connector:  
TxD and RxD (pins 2 and 3)  
RTS and CTS (pins 7 and 8)  
DCD, DTR, DSR, and RI (pins 1, 4, 6 and 9)  
26  
DSCLP/SSCLP-100 User's Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
SSCLP/DSCLP-100  
User's Manual  
Revision 1.00  
January 2002  
P/N: 940-0179-100  
Download from Www.Somanuals.com. All Manuals Search And Download.  

RCA Projection Television L50000 User Guide
Reliable Sewing Machine MSK 3316N User Guide
RIDGID Sander EB44241 User Guide
Rockford Fosgate Car Speaker RFP 1408 User Guide
Sanus Systems Indoor Furnishings PFV59S User Guide
Sanyo Flat Panel Television AVL224 User Guide
Scientific Atlanta DVR E8000SD User Guide
Scientific Atlanta Modem DPX213 User Guide
Sears Air Conditioner 66162392 User Guide
Sega Table Top Game 999 1763 User Guide