Siemens SCALANCE XR524-8C Operating Instructions Manual page 60

Connecting
5.5 Serial interface
Assignment of the terminal block
The supplied connecting cable has the following assignment:
Contact
1
2
3
4
5
6
7
8
9
Note
Pin assignment of the RJ-11 jack on the device
The RJ-11 jack on the device has a pinout to match the RJ-11 plug of the supplied
connecting cable.
60
Pin assignment of the RJ-11 plug
-
-
TD (Transmit Data)
SG (Signal Ground)
RD (Receive Data)
-
Pin assignment of the D-sub female
connector
-
TD (Transmit Data)
RD (Receive Data)
-
SG (Signal Ground)
-
-
-
-
Operating Instructions, 05/2014, A5E03275845-05
SCALANCE XR-500