Omnitron Systems Technology RS-232 All in One Printer User Manual


 
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Appendix E
CONNECTOR PIN-OUTS
RS-232 Port, Standard DB-9P
Connector Pin Direction Signal (TTL level)
1 No Connection
3 To Omni Receive Data (RxD)
2 To Host Transmit Data (TxD)
5 Signal Ground
8 To Host Request To Send (RTS)
7 To Omni Clear To Send (CTS)
9 No Connection