ADLINK cPCI-3544 - Manual (Page 16)

10
• Introduction
DB25 male connector pin assignment in cPCI-3544 module for
RS-422/485 interface. (Port A - D)
Pin No. RS-422 Interface RS-485 Interface
2 TXD+
3 RXD+
5 D+
6 RXD-
7 Each Port Isolated GND
8 D-
20 TXD-
DB9 male connector pin assignment in cPCI-3544 module for RS-422/485
interface. (Port A - D)
Pin No. RS-422 Interface RS-485 Interface
1 D-
2 RXD+
3 TXD+
4 TXD-
5 Each Port Isolated GND
6 RXD-
8 D+