Option Adapters
36
870 USE 101 00 V.2.2
Front Panel Components,
Continued
Pinouts for
Modbus Port 2
The 172 JNN 210 32 Serial Option Adapter uses the following pinouts:
Pin For RS232 For RS485
1 DTR RXD -
2 DSR RXD +
3TXD TXD +
4RXD
5 signal common signal common
6 RTS TXD -
7CTS
8 cable shield cable shield
