Siemens SINUMERIK 840D sl Manual page 108

Spare parts
7.2 Replacement
①
Touchpad mouse
②
Front USB interface
③
Keyboard controller
④
Connection X1 for IO-USB cable K1
⑤
Direct key connection X11
⑥
Membrane connectors X7 and X8 for connecting the operator panel front keyboard.
⑦
Connection X12 (reserved)
⑧
Connection X14 for backlight
⑨
Connection X4 for touchpad mouse
Figure 7-3 Replacement of operator panel front OP 012
See also
Assembling an OP 012 and a PCU (Page 98)
108
Operator panel front: OP 012
Manual, 09/2016, A5E36371591B