Siemens SIMATIC Box PC 820 Manual page 151

Pin No. Connection to
33 –
34 P5V
35 GND
36 X1-6, X4-18
37 –
38 –
39 X1-8
40 X1-7
Socket Connector X5
Connection to the keyboard controller.
Pin No.
1 X4-27
2 1P5V
3 GND
4 X4-30
5 GND
6 X4-3
7 X4-5
8 X4-24
9 X4-25
10 X4-26
Siemens Distributor
Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
Signal Name
–
P5V
GND
DP_LED
–
–
POWER_LED
HD_LED
Connection to Signal Name
KBD_CLK_E
1P5V
GND
KBD_DAT_E
GND
KBD_CLK_I
KBD_DAT_I
DTAST_DAT
DTAST_LATCH
DTAST_CLK
Front Adapter Module (FI45)
Remarks
Not connected
Not connected
Not connected
Remarks
Keyboard clock, external
keyboard
+5V via multifuse to motherboard
Keyboard data, external
keyboard
Keyboard clock, connection to
motherboard
Keyboard data, connection to
motherboard
Direct keys data signal
Direct keys latch signal
Direct keys clock signal
6-5