Specifications

8S RS232/422/485 PCI Express Expansion Module
10
Pin
No.
Signal Name Support Modes
1 TX+ (DATA+) RS485 2-wire, RS485 4-wire, RS422
2 TX- (DATA-) RS485 2-wire, RS485 4-wire, RS422
3 RX+ RS485 4-wire, RS422
4 RX- RS485 4-wire, RS422
5 GND
RS485 2-wire, RS485 4-wire, RS422 and
RS232
6 RXD RS232
7 TXD RS232
6
. Terminal Blocks
Pin Assignments
1 7