Point-to-point connection CP 440 Installation and Parameter Assignment
Manual, 09/2007, A5E00057742-03
143
Cables
B
B.1 X27 (RS 422/485) Interface of the CP 440
Pin Assignment
The table below shows the pin assignment for the 15-pin subminiature D female connector in
the front panel of the CP 440.
Table B-1 Pin Assignment for the 15-Pin Subminiature D Female Connector of the Integrated Interface of the CP 440
Socket on
CP 440-RS 422/485
*
Pin Designation Input/Output Meaning
1 - - -
2 T (A)- Output Transmitted data (four-wire operation)
3 - - -
4 R (A)/T (A)- Input
Input/Output
Received data (four-wire operation)
Received/transmitted data (two-wire
operation)
5 - - -
6 - - -
7 - - -
8 GND - Functional ground (isolated)
9 T (B)+ Output Transmitted data (four-wire operation)
10 - - -
11 R (B)/T (B)+ Input
Input/Output
Received data (four-wire operation)
Received/transmitted data (two-wire
operation)
12 - - -
13 - - -
14 - - -
15 - - -
* View from the front
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