Telenetics Network Card MIU Dial or Leased Line modem with RS 485 User Manual

Installation, Operation and Diagnostics  
for your  
Communication Interface Unit  
MIU(Dial or Lease Line modem with) / 485 (RS485) ~  
See MIUXXX for modem Technical Data  
Edition: June 17, 2003  
P/N: 0049-0002-010 rev A  
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1. PRODUCT OVERVIEW  
The CIU (MIU\XXX485) is an industrial modem with an RS-232 to RS485 converter module for  
direct connection to industrial RS485 Interface units. Though similar to commercial modems, the  
MIUXXX\485 contains special features that make it particularly well suited for industrial  
applications. (MIUXXX is for any dial or lease line modems such as MIU14.4L)  
These capabilities include:  
The CIU has been designed explicitly for use in industrial environments.  
In addition to an extended temperature range (-40 to +85o C), the  
MIUXXX\485 includes surge, shock, vibration, and safety parameters  
superior to those of conventional commercial modems.  
Environment  
The CIU uses standard industrial connectors for RS485 data and RS232  
Industrial  
interfaces.  
These connectors allow reliable interconnect to other  
industrial components. Furthermore, the CIU data lines are provided at  
RS-232 and RS485 signal levels for both stand-alone and embedded  
applications.  
2. PRODUCT DESCRIPTION  
The CIU provides Dial telephone communication capabilities for the industrial  
environment. It can be operated stand-alone or as a component of a larger industrial  
system.  
2.1 Telephone Interface  
The CIU telephone interface operates over two wire lines available in North America. The  
telephone line interface is environmentally benign, allowing use in Class I, Division 2  
applications.  
2.2 Data Interface  
The CIU data interface provides RS-232 compatible serial signaling. The data interface  
interconnects to industrial controllers at RS-232E, RS422 or RS485 data interface are  
available as options.  
2.3 Power  
The MIU accepts either regulated 48.0 to 220 volts DC, or regulated 48.0 to 220 volt AC  
power inputs. Unregulated 12.0 to 24.0 volt DC power input is available as an option.  
2.4 Mechanical  
The CIU consists of two printed circuit boards: A single two sided baseboard and a  
RS485 module is a single two sided package 5-3/8 x 4 x 1-3/8 suitable for desktop or wall  
mounting.  
2.5 Surge  
The MIUXXX\485 has double the surge protection of IEC801-4 voltage  
requirements.  
(5KVac)  
Install Op and Diags for MIU Modems and RS485 (0049-0002-010A)  
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3. MIU'S LED, SWITCH & SERIAL CONNECTOR SPECIFICATIONS  
The CIU/485 communicates with industrial controllers through RS-485 compatible serial  
signaling. The RS-485 signal levels are used to interconnect with RS-485 compatible  
embedded controllers. The RS-232E signal levels are used to configure the CIU. The RS-  
232E signal levels are also used to interconnect with RS-232E compatible embedded  
controllers if required.  
The RS-232E is present on DB9(MIU), RS485 signal levels are available via four pins'  
connectors.  
4.1 The following lists the CIU/485 serial interfaces. All connector definitions are  
described in Appendix A  
RS-232 Configuration Connector (P2)  
Connector Type:  
Signal Levels:  
DB9, (MIU) female, straight board mounts.  
RS-232  
RS485 Configuration Connector (P1)  
Connector Type:  
Signal Levels:  
4 pin terminal header with .138 spacing  
RS485  
3.2 MIU/485 LED  
LED Blinks every 4 seconds with AC / DC power  
3.3 MIU/485 LED & Switch 1 (internal)  
S1-1 Closed (ON) LED Blinks with option CD (&C1 AT command) active  
S1-2 Closed (ON) LED Blinks AC. DC Power ON Note select either 1 or 2  
S1-3 Closed, option modem DTR select DB9 DTR  
S1-4 Closed, option modem DTR select modem's CD  
3.4 MIU/485 Switch S3 (external)  
S3-2 Closed (ON) only for MIU/485 (J1) modem configuration or for  
RS232 embedded controllers.  
S3-1,-3 &-4 Open (OFF)  
S3-1 Closed (ON) only for MIU/485 (P1) RS485 connector (RS485  
embedded controllers)  
S3-2,-3 &m-4 Open (OFF)  
3.5 MIU/485 A switch (external)  
SA-1 Closed (ON) RS485 received data disable TX (Driver Output Enable)  
SA-2 Closed (ON) RS485 transmit data enable TX (Driver Output Enable) + 5ms  
SA-3 Closed (ON) RS485 RTS enable TX (Driver Output Enable) should be  
Open (OFF)  
SA-4 Closed (ON) RS485 received data is disables with TXD  
Install Op and Diags for MIU Modems and RS485 (0049-0002-010A)  
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3.5 MIU/485 B switch (external)  
SB-1 Closed (ON) RS485 Received RX & /RX DC terminated with SB-2 Closed  
SB-1 Open (OFF) RS485 Received RX & /RX AC terminated with SB-2 Closed  
SB- 2 Closed (ON) RS485 Received RX & /RX terminated  
SB- 2 Open (OFF) RS485 Received RX & /RX high impedance (Z)  
SB-3 & 4 Closed (ON)  
SB-3 & 4 Open (OFF)  
2- wire configuration or loopback mode  
4- wire configuration  
Install Op and Diags for MIU Modems and RS485 (0049-0002-010A)  
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4. POWER SUPPLY SPECIFICATIONS  
The MIUXXX/485 contains a low quiescent power regulator. TheMIUXXX/485 also has  
a "low power" standby mode which minimizes overall power requirements when the  
MIUXXX/485 is used intermittently.  
The power supply is selected through the use of  
a 3-pin screw - type terminal connector.  
4.1 Power Supply Selection (MIU)  
Power Connector P3 (MIU)  
Connector Type:  
3 Pin screw- type terminal  
Regulated Powe r Supply Range: 48.0 to 220 Volts AC/DC.  
Standby Supply Currents:  
Active Supply Currents:  
In-Rush Current:  
200uA  
8mA to 40mA plus modem current  
< 250mA  
Reverse Protection Method:  
Over-Voltage Clamp limits:  
Full wave Bridge Rectifier  
Zener diode  
Regulated Power Supply Range: (12 - 24VDC) is available as an option  
Standby Supply Currents:  
Active Supply Currents:  
In-Rush Current:  
200uA  
35mA to 295mA plus modem current  
< 350mA  
Reverse Protection Method:  
Over- Voltage Clamp limits:  
Full Wave Bridge Rectifier  
Zener diode and TransZorb TVS  
Install Op and Diags for MIU Modems and RS485 (0049-0002-010A)  
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5.  
RS485 SPECIFICATIONS  
MIUXXXX/485 are low-power Transceiver for RS485 and RS422 communication  
Features: Point to Point or Multidrop/Multipolling  
Full or Half Duplex  
Drivers are short - circuit current limited & protected against excessive  
power  
dissipation (shutdown will places the drivers in a high - impedance state).  
When Drivers are disabled (by TXD), drivers will switch to high  
impedance  
state.  
Note in two-wire or multi-drop/multi-polling networks TX enable by TXD  
should be active  
Receiver input impedance is 12K ohms.  
Reduced slew- rate drivers that minimize EMI and reduce reflections  
caused  
transmitted  
by improperly terminated cables  
data up to 200Kbps  
This will allow error - free  
RS485/RS422 standard covers line lengths up to 4000 feet. For line  
lengths  
greater than 4000 feet a line repeater can be added.  
MIUXXXX/485 can drive 4000 feet of 26AWG twisted - pair cable at  
200k bps into 120 ohms load.  
To minimize reflections, the line should be terminated at both ends. In  
multi - polling/multi - drop environments (up to 32 drops) all drops off  
main cable should be as short as possible.  
the  
Only the Master/Host unit and the end of cable unit should be terminated.  
Typical Speed versus Distance - (4-wire point to point 26 AWG twisted  
cable)  
SPEED  
1200bps  
DISTANCE  
6.0 miles(9.6 km)  
4.5 miles (7.2 km)  
4.0 miles (5.5 km)  
2.5 miles (4.0 km)  
1.8 miles (2.9 km)  
1.4 miles (2.1 km)  
1.1 miles (1.8 km)  
0.6 miles (0.9 km)  
2400 bps  
4800 bps  
9600 bps  
19,200 bps  
38,400 bps  
56,400 bps  
115,000 bps  
NOTE: Speed and distances will depend on actual operating  
environment.  
6. ENVIRONMENTAL SPECIFICATIONS  
The CIU/485 (MIUXXX\485) meets the following environmental specifications.  
Install Op and Diags for MIU Modems and RS485 (0049-0002-010A)  
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Operating Temperatures  
Storage Temperature  
Relative Humidity  
Altitude  
-40 to 85oC  
-55 to 100oC  
0 to 95% is non-condensing.  
20,000 ft (operating), 40,000 ft (shipping).  
Vibration Effect  
Withstand 10 to 500 Hz at 1 g on any axis per SAMA  
PMC-31-1 without damage or impairment.  
ESD susceptibility  
EMI susceptibility  
EMI radiation  
Field connected circuits meet the requirements of IEC  
801-2 for ESD withstand capability up to 10 KV.  
Withstand 27 to 1000 MHz per IEC 801-3 level 1 (1v/m)  
without damage or impairment.  
Meets FCC Rules Part J, Subpart 15, Class A for  
radiated emissions.  
7. APPROVALS  
The CIU/485 meets the following approvals:  
Telephone:  
Emissions  
FCC Part 68  
FCC Part 15  
Environment  
UL listed (pending) for use in Class I, Division 2,  
Groups C and D hazardous locations.  
Install Op and Diags for MIU Modems and RS485 (0049-0002-010A)  
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MIUXXX\485 Power Connection  
Power Connector  
RJ11 Leased Line Port  
Power In MIU (48 to 220VAC/DC  
(AC or DC)  
non-polarized  
Earth Gnd  
Power In MIU-LV (9 to 36VDC)  
Positive Voltage In  
Power Ground  
Earth Gnd  
LED 1  
Earth/Digital Ground (Jump pins if req’d)  
DB9 Data Port  
LED ONE  
Blinking = POWER ON  
Steady = MODEM CONNECTED (CD)  
¨
CIU Installation, Operation & Diagnostics  
Edition: June 17, 2003  
SHEET TWO  
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RJ11 Telco Port *  
Power Connector  
(* Not on MIU232/485 Converter)  
B A  
LED 1 *  
Earth/Digital Ground (Jump pins if req’d) *  
RS485  
Connection  
RS232 Data Port (DB9 female)  
for modem configuration only.  
TX+ TX- RX+ RX-  
3 & 4 always UP.  
1 UP, 2 DOWN when using DB9  
for modem configuration.  
1 DOWN, 2 UP ~ Modem  
connected to RS485. Do not  
connect data to DB9  
LED 1...  
¨ Blinking = POWER ON  
¨ Steady = MODEM CONNECTED (CD)  
B
Point-to-Point, 4-Wire: Set Switches B-3 & B-4 DOWN(OFF)  
Point-to-Point, 2-Wire: Set Switches B-3 & B-4 UP(ON)  
Line Terminate DC : Set Switches B-1 & B-2 UP(ON)  
A
Line Terminate AC : set Switches B-2  
UP(ON)  
4 3 2 1  
4 3 2  
1
For LoopBack Test mode : Set Switches B-3 & B-4 UP(ON)  
Set Switch A-4 DOWN(OFF)  
B
A
Multi-drop (Host), 4-Wire: Set Switches B-3 & B-4 DOWN  
Multi-drop (Host), 2-Wire: Set Switches B-3 & B-4 UP  
4 3 2 1  
4 3 2 1  
Multi-drop (Slave), 4-Wire: Set Switches B-3 & B-4 DOWN  
Multi-drop (Slave), 2-Wire: Set Switches B-3 & B-4 UP  
Line Terminate  
: Set Switches B-2 & B-1DOWN (OFF) for  
all Slaves except UP(ON) on unit furthest  
from the Host  
A
B
Switch A-1:  
Switch A-2:  
Switch A-3:  
RTS/CTS Delay: UP = 0 sec; DOWN = 7ms  
DOWN = TXD enables TX +5ms  
DOWN = RTS enables TX  
Select only A-2 or  
A-3  
4 3 2 1  
4 3 2 1  
Switch A-4: UP(ON) = TX clamps RXD off (ON) in 2-Wire (half duplex) mode  
MIUXXX/485 DIP SWITCH SETUP  
CIU Installation, Operation & Diagnostics  
Edition: June 17, 2003  
SHEET TWO  
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CONNECTOR PIN DEFINITIONS  
APPENDIX A.  
CONNECTOR  
P2: RS-232 Configuration Connector (DB9) MIU  
DCD  
RD  
TD  
DTR  
GND  
DSR  
RTS  
CTS  
RI  
1
2
3
4
5
data carrier detect  
receive data  
transmit data  
data terminal ready  
ground  
from MIUXXX\485  
from MIUXXX\485  
MIUXXX\485  
MIUXXX\485  
to  
to  
6
data set ready  
from MIUXXX\485  
to MIUXXX\485  
from MIUXXX\485  
from MIUXXX\485  
7
8
9
request to send  
clear to send  
ring indication  
protective ground  
PGND  
shield  
_______________________________________________________________________________  
P1: RS-485 Configuration Connector 4 Positions header with .138  
CONNECTOR  
spacing  
Interface to 4 positions Plug-in Terminal Block  
TXY  
TXZ  
RX  
1
transmit data (+)  
from MIUXXX\485 module  
from MIUXXX\485 module  
to MIUXXX\485 module  
to MIUXXX/485 module  
2
transmit data (-)  
3
4
receive data (+)  
receive data (-)  
/RX  
MIUXXX/485 Installation, Operation & Diagnostics Edition: June 17, 2003  
Page A-1  
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APPENDIX B. SETUP CONFIGURATION  
In order to configure the MIUXXX/485 to remote RTU, Meter or Scada terminals the  
following setup is required for 2w or 4w (RS485) networks  
See Fig ONE for MIUXXXX/485 layout and dip switch setting  
Jumper 7  
Pin 1  
3&4  
Power  
Plug  
Switch  
Three  
RJ11  
Telco  
Switch Three Setting  
SW - One On  
SW - Two Off  
SW - Three Off  
SW - Four Off  
DB9 (RS232)  
Configuration  
only  
DB 9 Connection  
1 Carrier Detect  
2 Received Data  
3 Transmit Data  
4 DTR  
Switch  
One  
Switch One Setting  
5 Signal Ground  
6 DSR  
7 RTS  
8 CTS  
J2 Pin1  
J 8  
Pin 1  
2 & 3  
SW - One Off  
SW - Two On  
SW - Three Off  
SW - Four Off  
Jumper  
3 & 4  
5 & 6  
7 & 8  
13 & 15  
9 Ring Indicator  
Final Factory Configuration (MIUXXXX/485) for PEXXX modem module  
No, Power saving modes, No Auto Reset mode  
Switch two ON Switch one, three and four are OFF.  
MIU S3 (external)  
SW-2 Closed (ON) MIU is configured for DB9 interface to  
Modem interface connection.  
SW-1, -3 & -4 Open (OFF)  
CIU Installation, Operation & Diagnostics  
Edition: June 17, 2003  
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1:AT Command (MIU2400/485) (Dial) configuration is:  
ATE0Q1&C1&D0S0=1&W0  
E0  
Q1  
Echo Command disables (no "AT" response to terminal)  
Result Codes disable (no result codes return to terminal ring)  
S0=1 Auto Answer active (first ring modem will go OFF- Hook and  
start answer sequence)  
&C1 Carrier Detect is always True (MIU LED will be ON all the  
time when Carrier Detect is ON.  
&D0 DTR is ignored  
2:  
AT Command (MIU2496/485, MIU14.4/485 & MIU28.8/485)  
ATE0Q1&C1&D0&Q6S0=1&W0  
E0  
Q1  
Echo Command disables (no "AT" response to terminal)  
Result Codes disable (no result codes return to terminal ring,  
Connect XXX)  
&Q6 Normal mode (speed buffering)  
S0=1 Auto Answer active (first ring modem will go  
and start answer sequence)  
OFF- Hook  
&C1 Carrier Detect is always True (MIU LED will be ON all the  
time when Carrier Detect is ON.  
&D0 DTR is ignored  
&K0 No flow control  
3:  
AT Command (MIU14.4L/485) Lease Line  
ATE0Q1&C1&D0&K0&Q6\M0\H1&Z3=XX&W0  
Recycle power (OFF ON)  
Wait 5 seconds for DSR to switch ON  
Enter AT\S1 <CR>  
AT&W0 <CR>  
Within 45 seconds  
E0  
Q1  
Echo Command disables (no "AT" response to terminal)  
Result Codes disable (no result codes return to terminal ring,  
Connect XXX)  
&Q6 Normal mode (speed buffering)  
\M0 Answer mode (for Remote (Slave unit) local (Master) set for  
originate \M1  
\H1  
Lease Line mode  
\S1  
Security mode (if remote RTU is a dumb unit - TxD is always ON  
CIU Installation, Operation & Diagnostics  
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&Z3=XX Password to exit security mode  
&C1 Carrier Detect is always True (MIU LED will be ON all the time  
when Carrier Detect is ON.  
&D0 DTR is ignored  
&K0 No flow control  
4:  
AT Command (MIU9.6L/485) Lease Line  
ATE0Q1&C1&D0&K0&Q6\M0\H1W0  
E0  
Q1  
Echo Command disables (no "AT" response to terminal)  
Result Codes disable (no result codes return to terminal ring,  
Connect (XXX)  
&Q6 Normal mode (speed buffering)  
\M0 Answer mode (for Remote (Slave)unit) local (Master) set for  
originate \M1  
\H1  
\S1  
Lease Line mode  
Security mode (Not available for MIU9.6L)  
&C1 Carrier Detect is always true (MIU LED will be ON all the time when  
Carrier Detect is ON.  
&D0 DTR is ignored  
&K0 No flow control  
Note &Q5 error detection and data compression can be used  
If the host software will support EC  
Switch Setting (MIUXXX/485) (Typical)  
MIU S3 (external)  
SW-1 Closed (ON) MIU is configured for RS485 Module (RS485 RxD  
(Output) to Modem TxD (input))  
SW-2, -3 & -4 Open (OFF)  
2- Wire Configuration on PE485 module  
SB-1 Closed (ON) DC Termination Open (OFF) AC Termination  
SB-2 Closed (ON) Line Termination  
SB-3 & -4 Closed (ON) 2- Wire  
SA- 1 Open (OFF)  
SA- 2 Closed (ON) TxD (transmit data) enables TX (Driver Output Enable) + 5ms  
SA- 3 Open (OFF)  
SA- 4 Closed (ON) Received data is disable with TX  
enable (TxD)  
4- Wire Configuration for PE485 module  
CIU Installation, Operation & Diagnostics  
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SB-1  
SB-2  
Closed(ON) DC Terminated  
Closed (ON) Line Termination  
SB-3 & -4 Open (OFF) 4- wire  
SA-1 Open (OFF) RTS follows CTS no delay  
SA-2  
SA-3  
Open (OFF)  
Closed (ON) RTS (always ON by MIU internal J7 (1/2)  
setting) enables TxEN)  
SA-4  
Open (OFF) TxD will not disable RxD  
MIU S3 (external)  
SW-1 Closed (ON) MIU is configured for RS485 Module (RS485 RxD  
(Output) to Modem TxD (input))  
SW-2, -3 & -4 Open (OFF)  
SA2 & SA3 can be configures for TxD enable TxEn signal if there  
are several master locations in the network.  
SA2 is Closed (ON) TxD (transmit data) enables TX (Driver Output  
+ 5ms  
Enable)  
SA3 is Open (OFF) TxD will not disable RxD  
MIUXXXX/485 Final Connection  
Ensure that MIUXXXX/485 J7 (internaljumper) 1/2 is connected  
CONNECTOR DIAGOSTICS  
CONNECTION FAILURE  
APPENDIX C.  
RS485  
CIU Installation, Operation & Diagnostics  
Edition: June 17, 2003  
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To test RS485 module set switch SB-3 & -4 Closed (ON) to loopback data to the host  
modem. This test is for RS485 2- wire and 4- wire configurations.  
Connect MIUXXXX/485 TXY (+) and TXZ (-) to the embedded controller  
RS485  
DIAGNOSTICS  
RS485 CONNECTION FAILURE  
To test RS485 module set switch SB-3 & -4 Closed (ON) to loopback data to the host  
modem. This test is for RS485 2- wire and 4- wire configurations.  
Connect MIUXXXX/485 TXY (+) and TXZ (-) to the embedded  
controller RS485 connection  
MIUXXXX/485 + ------------------- + RS485 embedded controller  
- ------------------- -  
In some applications RS485 TXY (+) and TXZ (-) may have to be connected  
to RS485  
embedded controller in the following setup  
MIUXXX/485 + ----------------- - RS485 embedded controller  
- ----------------- +  
CIU Installation, Operation & Diagnostics  
Edition: June 17, 2003  
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