Moxa Technologies CA Series - DB25(M) Connectors

CA Series User’s Manual Pin Assignments
5-3
DB25(M) Connectors
1
14
13
25
The CBL-F40M25x4-50 and CBL-F20M25x4-50 cables provide DB25(M) connectors for each
serial port, with pin assignments as follows:
Pin RS-232
RS-422
4-wire RS-485 2-wire RS-485
2 TxD RxD+(B) Data+(B)
3 RxD TxD+(B) ---
4 RTS --- ---
5 CTS --- ---
6 DSR --- ---
7 GND GND GND
8 DCD TxD-(A) ---
20 DTR RxD-(A) Data-(A)