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Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
2.8.19 Assignment of the COM 2 Port, X11
The interface is connected from the basic module (X911) to the black plane by a
ribbon cable.
Pin No. Description Pin No.
X911
1 DCD 1
2 RxD 3
3 TxD 5
4 DTR 7
5 Ground 9
6 DSR 2
7 RTS 4
8 CTS 6
9 R1 8
Housing Ground +5V
Figure 2-6 Serial COM 2 Port
Motherboard
Siemens Distributor
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