Pinouts and Cabling Diagrams 353
Serial Pinouts
The power in pin, pin 12, can be 9-30V DC.
RJ45
This section defines the pinouts for the RJ45 connection (see RJ45
SCS48C/SCS32C/SCS16C/SCS8C on page 354 for the SCS48C model). 1-port, 2-port, and 4-port
desktop IOLAN models have a 10-pin RJ45 connector and all rack mount IOLAN models have an
8-pin RJ45 connector. These pinouts do not apply to I/O models.
The following table provides pinout information:
The power in pin, Pin 1, can be 9-30V DC. The 2-port IOLAN has power in on Port 2 only. The
4-port IOLAN has power in on Port 4 only.
15 RxD- RxD-
18 CTS+
19 CTS-
20 (in) DSR
21 TxD+ TxD+ DATA+
22 TxD- TxD- DATA-
25 RTS+
Pinout
10-pin
Pinout
8-pin
EIA-232
EIA-422
EIA-485
Full Duplex
EIA-485
Half Duplex
1 Power In Power In Power In Power In
2 (in) 1 DCD
3 (out) 2 RTS TxD+ TxD+ DATA+
4 (in) 3 DSR
5 (out) 4 TxD TxD- TxD- DATA-
6 (in) 5 RxD RxD+ RxD+
7 6 GND GND GND GND
8 (in) 7 CTS RxD- RxD-
9 (out) 8 DTR
10 Power out Power out Power out Power out
Pinout
EIA-232
EIA-422
EIA-485
Full Duplex
EIA-485
Half Duplex
Pin 10
Pin 1
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