
Using the Modbus Plus Ports
142
870USE10110 July 2004
Interconnect
Cables
The following illustration shows the pinout for the 170 MCI 02x xx Modbus Plus or
Modbus RS485 interconnect cables (10 in, 3 ft, 10 ft and 30 ft).
Modbus Plus
Connector T
(DB9 Base)
The following illustration shows the pinout for the Modbus Plus connector T (DB9
base).
1
2
3
6
4
5
7
8
1
2
3
6
4
5
7
8
TX+
TX-
Shield
Not used
Not used
TX+
TX-
Shield
Not used
Not used
RJ45 Connector RJ45 Connector
1
2
3
4
5
6
7
8
.1
µ
F
TX-
Shield
RJ45 Shielded Connector
Shell
123
1
2
3
4
5
6
7
8
TX+
TX-
Shield
RJ45 Shielded Connector
TX+
DB9 Connector
ShellTX-
Shell
500 V
TX+
Shield
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