Rs232/Rs485/Rs422 Mode Selection For Com2 - Nexcom VMC 3000 User Manual

Chapter 5: Jumpers and Connectors for VMC 4000 Series

RS232/RS485/RS422 Mode Selection for COM2

Connector size: 8-pin DIP switch
Connector location: SW3
1 2 3 4 5 6 7 8
Pin Definition
1 SP_CTS_2
3 SP_RTS_2
5 SP_RXD_2
7 SP_TXD_2
9 COM2_TXD_+
11 COM2_RXD_-
13 COM2_RTS_+
15 COM2_CTS_-
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Pin Definition
2 RS422_TX-
4 RS422_TX+
6 RS485_-
8 RS485_+
10 COM2_TXD_+
12 COM2_RXD_-
14 COM2_RTS_+
16 COM2_CTS_-
RS232
Pin
(*)
SW1.1 ON
SW1.2 OFF
SW1.3 ON
SW1.4 OFF
SW1.5 ON
SW1.6 OFF
SW1.7 ON
SW1.8 OFF
(*) Default Setting
79
RS485 RS422
OFF OFF
OFF ON
OFF OFF
OFF ON
OFF OFF
ON ON
OFF OFF
ON ON
VMC 3000/4000 Series User Manual