Rs232/rs485/rs422 mode selection for com2 – NEXCOM VMC 3000/ 3001 User Manual
Page 95
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79
VMC 3000/4000 Series 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
Pin
RS232
(*)
RS485
RS422
SW1.1
ON
OFF
OFF
SW1.2
OFF
OFF
ON
SW1.3
ON
OFF
OFF
SW1.4
OFF
OFF
ON
SW1.5
ON
OFF
OFF
SW1.6
OFF
ON
ON
SW1.7
ON
OFF
OFF
SW1.8
OFF
ON
ON
(*) Default Setting
1
O
N
2 3 4 5 6 7 8
Pin
Definition
Pin
Definition
1
SP_CTS_2
2
RS422_TX-
3
SP_RTS_2
4
RS422_TX+
5
SP_RXD_2
6
RS485_-
7
SP_TXD_2
8
RS485_+
9
COM2_TXD_+
10
COM2_TXD_+
11
COM2_RXD_-
12
COM2_RXD_-
13
COM2_RTS_+
14
COM2_RTS_+
15
COM2_CTS_-
16
COM2_CTS_-