ControlLogix Multi-Vendor Interface Module 13
Publication 1756-IN001A-US-P - May 2000
Refer to the following tables to identify the signals on each of the
1756-MVI module’s ports.
PRT1 Signals
DB-9M Pin RS-232 Signal
1DCD
2RxD
3TxD
4DTR
5 COM/GND
6DSR
7RTS
8CTS
9--
Metal Shell Shield
IMPORTANT
The cable length for PRT1 must not exceed ten (10)
feet.
PRT2, PRT3 Signals
DB-9M Pin Jumper Set to
RS-232 Signal
Jumper Set to
RS-422 Signal
Jumper Set to
RS-485 Signal
1 DCD TxD+ TxD/RxD+
2RxD RxD+ --
3 TxD -- --
4 DTR -- --
5 COM/GND COM/GND COM/GND
6DSR RxD– --
7 RTS -- --
8 CTS TxD– TxD/RxD–
9-- -- --
Metal Shell Shield Shield Shield
IMPORTANT
The cable length for PRT2 and PRT3 must not
exceed:
• 50 feet for RS-232 signals
• 4000 feet for RS-422 and RS-485 signals
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