Pin Assignments Of The 25-Pin D Subminiature Connector - Siemens SIMATIC S5 CP 523 Manual

Hardware Installation
3.2.2

Pin Assignments of the 25-Pin D Subminiature Connector

20 mA send
20 mA receive
Figure 3-4. Pin Assignments of the 25-Pin D Subminiature Connector
3-6
13
Shield
25
12
Shield 24
11
23
Ground
10
22
9
Ground 21
8
20
7
-
19
6
-
18
5
-
17
4
-
16
3
DTR 15
2
-
14
1
RTS
TTY OUT -
V.24 -TXD
TTY OUT+
CTS
TTY IN-
DSR
TTY IN+
V.24 -RXD
-
-
Ground
-
CP 523
EWA 4NEB 811 6044-02a