4-9
Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
4.6.2 Internal Ports
4-Pin Power Supply Connector
4-pin male connector
Pin no. Signal designation
1 +5V
2 Ground
3 Ground
4 not assigned
DP Port
10-pin pole plug
Pin no. Signal designation Pin no. Signal designation
1 not assigned 2 Disable power (control signal)
3 Disable (control signal) 4 not assigned
5 Ground 6 TTL_RXD (TTL level)
7 Ground 8 TTL_TXD (TTL level)
9 Ground 10 TTL_RTS (TTL level)
Keyboard Port
6-pin pole plug connector
Pin no. Signal designation Description
Pin 1 Ground Ground
Pin 2 SLK Clock signal for transmission of serial data from the
keyboard controller
Pin 3 Ground Ground
Pin 4 LATCH Memory signal for data package from keyboard
controller
Pin 5 Ground Ground
Pin 6 DATA Serial data from keyboard controller
Direct Key Module (Optional with FI45)
Siemens Distributor
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