Siemens SINUMERIK 840D sl Manual page 96

Interfaces
①
②
③
④
⑤
Figure 4-1
Pin assignment
For more detailed information, see "General information and networking", Chapter:
"Connecting".
96
I/O USB cable K1
Display cable K2
Retainer for the connecting cable for the direct key module
Direct key interface X11
Interface X12 (reserved)
Connections on rear of housing: Connections to the PCU
Operator panel front: OP 012
Manual, 09/2016, A5E36371591B