Connecting up   
5.5 Serial interface 
  SCALANCE XC-200 
54  Operating Instructions, 07/2016, C79000-G8976-C442-01 
Assignment of the terminal block 
The connecting cable has the following assignment: 
 
Pin assignment of the RJ-11 plug 
Pin assignment of the D-sub female con-
nector 
2  -  TD (Transmit Data) 
4  SG (Signal Ground)  - 
 
 
 
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 connecting cable.