Specifications

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Appendix A Pinouts and Cable Wiring
C114HI is suitable for RS-232, RS-422 or RS-485 communications. Each port can be
set to RS-232, RS-422 or RS-485 interface independently via the jumpers. Refer to
Chapter "Hardware Installation and IO-IRQ" for more details.
In data communications, the term DTE is Data Terminal Equipment like terminal or PC
COM1/2. The term DCE is Data Communication Equipment like modem. Their precise
pinouts and cable wiring are as follows.
The following comparison table is for EIA Standards RS-232, RS-422 and RS-485.
Mode of operation No. of Drv. No. of Rcv. Max. length ( FT ) Max. Rate ( bps )
RS-232 single ended 1 1 50 20K
RS-422 differential 1 10 4000 10M
RS-485 differential 32 32 4000 10M
A.1 RS-232
The following lists pinouts of the RS-232 port.
C114HI DB-9 Male Connector C114HI Pin-head Connector
1 DCD 1 DCD
2 RxD 2 RxD
3 TxD 3 TxD
4 DTR 4 DTR
5 GND 5 GND
6 DSR 6 DSR
7 RTS 7 RTS
8 CTS 8 CTS
9 RI 9 RI
10 NC