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Pinouts and Cabling Diagrams 207
Serial Pinouts
DB9 Male (Serial Only)
This section defines the pinouts for the DB9 male connection used on the 1-port IOLAN that is serial
only (not I/O).
The following table provides pinout information:
Pinout
9-pin
EIA-232
EIA-422/485
Full Duplex
EIA-485
Half Duplex
1 (in) DCD
2 (in) RxD RxD+
3 (out) TxD TxD+ TxD+/RxD+
4 (out) DTR
5 GND GND GND
6 (in) DSR RxD-
7 RTS
8 (in) CTS
9 TxD- TxD-/RxD-
DB9 Male I/O
This section defines the pinouts for the DB9 male connection used on the 1-port IOLAN I/O models.
The following table provides pinout information:
Pinout
9-pin
EIA-232
EIA-422/485
Full Duplex
EIA-485
Half Duplex
1(in) DCD
2 (in) RxD RxD+
3 (out) TxD TxD- TxD-/RxD-
4 (out) DTR
5 GND GND GND
6 (in) DSR RxD-
7 RTS TxD+ TxD+/RxD+
8 (in) CTS
9