Module Interfaces; Front-End Serial I/O Interface - PEP Modular Computers CP345 Manual

CP345

5.1.2 Module Interfaces

5.1.2.1

Front-End Serial I/O Interface

Figure 5-4: Orientation and Pinouts of the CP-RIO-345
Serial I/O Connector
The non-optoisolated rear I/O module CP-RIO-345 is
equipped with a serial I/O connector block consisting of
four RJ45 connectors which include the signals of chan-
nels 0 to 3. The pinouts of the RJ45 connectors are shown
in the following table.
Warning!
Where signals are not indicated in the
below table, please do not connect
external wiring to the connector pins.
Failure to comply may result in damage
to your board.
Table 5-1: Pinouts of Rear I/O Module RJ45 Connectors 0..3 (Sheet 1 of 2)
RS232
DSR
RTS
GND
TxD
RxD
DCD
CTS
DTR
DSR
RTS
GND
TxD
RxD
DCD
CTS
DTR
ID 19979, Rev. 03
RS422/RS485
Half Duplex
— RxD-
— —
GND GND
TRxD+ TxD+
— —
— RxD+
TRxD- TxD-
— —
— RxD-
— —
GND GND
TRxD+ TxD+
— —
— RxD+
TRxD- TxD-
— —
© PEP Modular Computers GmbH
Rear I/O Modules
RS422/RS485
Pin
Full Duplex
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
8
3
1
8
2
1
8
1
1
8
0
1
Channel
0
1
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