CP345
Functional Description
ID 19979, Rev. 03
Page 2 - 11
©
PEP Modular Computers GmbH
2.4.1.3
Frontend Connector (Optoisolated Board Variant)
The transition module of the optoisolated variant of the CP345 is equipped with a 50-pin
row female connector comprising the signals of serial I/O channels 0 to 3. The pinouts of
the D-Sub connector 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 3-3: Pinouts of Frontend 50-Pin D-Sub Connector (Sheet 1 of 2)
RS232
RS422/RS485
Half Duplex
RS422/RS485
Full Duplex
Pins
Channel
TxD
TRxD+
TxD+
1
—
0
CTS
TRxD-
TxD-
—
26
—
—
—
2
—
—
—
—
—
27
DCD
—
RxD+
3
—
DSR
—
RxD-
—
28
—
—
—
4
—
—
—
—
—
29
RTS
—
—
5
—
DTR
—
—
—
30
GND
GND
GND
6
—
RxD
—
—
—
31
TxD
TRxD+
TxD+
7
—
1
CTS
TRxD-
TxD-
—
32
—
—
—
8
—
—
—
—
—
33
DCD
—
RxD+
9
—
DSR
—
RxD-
—
34
—
—
—
10
—
—
—
—
—
35
RTS
—
—
11
—
DTR
—
—
—
36
GND
GND
GND
12
—
RxD
—
—
—
37
Содержание CP345
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