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Pinouts and Cabling Diagrams 400
Serial Pinouts
RJ45 (for SDS32C/SDS16C/SDS8C)
Dual Ethernet and Electric Utility models
This section defines the pinouts for the RJ45 connection for the Dual Ethernet (SDSxxC models) and
Electric Utility models. The serial ports can be set to operate in EIA-232, EIA-422 or EIA-485 mode.
The table provides the pinout for each of the modes of operation. The console port is an EIA-232
dedicated port. It’s pinout is detailed in a separate table below.
The following table provides pinout information for the serial ports:
The following table provides pinout information for the Admin port. For some models Perle supply’s
a RJ45 Admin cable (part# 1107015-10) that should be used to connect from the Admin port on the
IOLAN to the (some models) Perle supplied RJ45 to serial adapter.
Pin#
EIA-232
EIA-422
EIA-485
Full Duplex
EIA-485
Half Duplex
1 RTS (out) TxD+ TxD+ DATA+
2 DTR(out)
3 TxD (out) TxD- TxD- DATA-
4 GND GND GND GND
5 GND GND GND GND
6 RxD (in) RxD+ RxD+
7 DSR (in)
8 CTS (in) RxD- RxD-
Pinout
8-pin
EIA-232
Admin Port
1 DCD (in)
2 RTS (out)
3 DSR (in)
4 TxD (out)
5 RxD (in)
6 GND
7 CTS (in)
8 DTR (out)
Pin 1
Pin 8