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v10.0.1.x for R2026a
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IO505 Pin Mapping

IO505 Pin Mapping — Reference information about the I/O module connector

Front Connector Pin Mapping

PinSignal (RS232 Mode)Signal (RS422/RS485 Mode) PinSignal (RS232 Mode)Signal (RS422/RS485 Mode)
1Channel 1 Ground 26-
2Channel 1 TxChannel 1 Tx(-) / Dx(-)27-
3Channel 1 RxChannel 1 Tx(+) / Dx(+)28-
4Channel 1 RTSChannel 1 Rx(-)29-
5Channel 1 CTSChannel 1 Rx(+)30-
6-31Channel 4 Ground
7-32Channel 4 TxChannel 4 Tx(-) / Dx(-)
8-33Channel 4 RxChannel 4 Tx(+) / Dx(+)
9-34Channel 4 RTSChannel 4 Rx(-)
10-35Channel 4 CTSChannel 4 Rx(+)
11Channel 2 Ground36-
12Channel 2 TxChannel 2 Tx(-) / Dx(-)37-
13Channel 2 RxChannel 2 Tx(+) / Dx(+)38-
14Channel 2 RTSChannel 2 Rx(-)39-
15Channel 2 CTSChannel 2 Rx(+)40-
16-41-
17-42-
18-43-
19-44-
20-45-
21Channel 3 Ground46-
22Channel 3 TxChannel 3 Tx(-) / Dx(-)47-
23Channel 3 RxChannel 3 Tx(+) / Dx(+)48-
24Channel 3 RTSChannel 3 Rx(-)49-
25Channel 3 CTSChannel 3 Rx(+)50-