Athena A228 - Page 30

APPENDIX
30
A228/A248/A228I/A248I User’s manual
COM1 & COM2 Connector
Pin #
Signal Description
RS-232
RS-422
RS-485
1
Carrier Detect
Transmit Data -
Transmit Data -
2
Receive Data
Transmit Data +
Transmit Data +
3
Transmit Data
Receive Data +
NC
4
Data Terminal
Ready
Receive Data -
NC
5
Ground
NC
NC
6
Data Set Ready
NC
NC
7
Request to Send
NC
NC
8
Clear to Send
NC
NC
9
Ring Indicator
NC
NC