NEXCOM VMC 3000/ 3001 - Manual (Page 88)

Copyright © 2012 NEXCOM International Co., Ltd. All rights reserved 72 VMC 3000/4000 Series User Manual
Chapter 5: Jumpers and Connectors for VMC 4000 Series
RS232/485/422 Mode Selection for COM2
Connector size: 8-pin DIP switch
Connector location: SW1
Pin
RS232
(*)
RS485 RS422
SW1.1 ON OFF OFF
SW1.2 OFF ON ON
SW1.3 ON OFF OFF
SW1.4 OFF ON ON
SW1.5 ON OFF OFF
SW1.6 OFF OFF ON
SW1.7 ON OFF OFF
SW1.8 OFF OFF ON
(*) Default Setting
1
O N
2 3 4 5 6 7 8
Pin Definition Pin Definition
1 SP_TXD_2 2 RS485_+
3 SP_RXD_2 4 RS485_-
5 SP_RTS_2 6 RS422_TX+
7 SP_CTS_2 8 RS422_TX-
9 COM2_CTS_- 10 COM2_CTS_-
11 COM2_RTS_+ 12 COM2_RTS_+
13 COM2_RXD_- 14 COM2_RXD_-
15 COM2_TXD_+ 16 COM2_TXD_+