Siemens SIMATIC Box PC 820 Manual page 149

6.2 Pin Assignment
Socket Connector X1
Connection to the LEDs of the membrane keyboard.
Pin No.
1 GND
2 X4-20
3 X4-21
4 X4-22
5 X4-23
6 X4-18, X4-36
7 X4-40
8 X4-23
Socket Connector X2
Connection to the mouse buttons of the membrane keyboard.
Pin No.
1 GND
2 X3-4
3 GND
4 GND
5 X3-5
6 GND
7 –
8 –
Socket Connector X3
Connection to the touch pad, inverse counting due to ribbon cable.
Pin No.
1 –
2 –
3 GND
4 X2-2
5 X2-5
6 X4-10
7 X4-9
8 P5V
Siemens Distributor
Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
Connection to Signal Name
GND
TEMP_R
TEMP_G
RUN_R
RUN_G
DP_LED
HD_LED
RUN_G
Connection to Signal Name
GND
MOUSE_L
GND
GND
MOUSE_R
GND
–
–
Connection to Signal Name
–
–
GND
MOUSE_L
MOUSE_R
MOUSE_CLK
MOUSE_DAT
P5V
Front Adapter Module (FI45)
Remarks
Red temperature LED
Green temperature LED
Red RUN LED
Green RUN LED
DP LED
HD LED
POWER LED
Remarks
Left mouse button
Right mouse button
Not connected
Not connected
Remarks
Not connected
Not connected
Left mouse button
Right mouse button
Touch pad mouse clock
Touch pad mouse data
6-3