Wincomm WMP-19B User Manual page 63

J47 – External COM1 Connector
Pin #
1 Carrier Detect
2 Receive Data
3 Transmit Data
4 Data Terminal Ready
5 Ground
6 Data Set Ready
7 Request to Send
8 Clear to Send
9 Ring Indicator
RS-232
WMP-19B/22B User's manual
Signal Description
RS-422
Transmit Data -
Transmit Data +
Receive Data +
Receive Data -
NC
NC
NC
NC
NC
APPENDIX
RS-485
Transmit Data -
Transmit Data +
NC
NC
NC
NC
NC
NC
NC
49