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IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.5 395
Pinouts and Cabling
Diagrams Appendix D
D
Serial Pinouts
DB25 Male
This section defines the pinouts for the DB25 male connection used on the 1-port IOLAN. The power
out pin (Pin 9) is available in the SDS model only.
The following table provides pinout information:
Pinout
EIA-232
EIA-422
EIA-485
Full Duplex
EIA-485
Half Duplex
1 Shield Shield Shield Shield
2 (out) TxD
3 (in) RxD
4 (out) RTS
5 (in) CTS
6 (in) DSR
7 GND GND GND GND
8 (in) DCD
9 Power out Power out Power out Power out
12 Power in Power in Power in Power in
13 CTS-
14 TxD+ TxD+ DATA+
15 TxD- TxD- DATA-
Pin 13
Pin 25
Pin 14
Pin 1