Advantech ARK-5280 Manual de usuario Pagina 28

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ARK-5280 User Manual 12
2.2.5 COM1, COM3, and COM4 Connector
The ARK-5280 provides three-RS-232 ports by three D-sub 9-pin con-
nectors. Please refer to Table 2.3 for their pin assignments.
Figure 2.4: COM1, COM3 and COM 4 Connector
1
DCD Tx- DATA-
2
RxD Tx+ DATA+
3
TxD Rx+ NC
4
DTR Rx- NC
5
GND GND GND
6
DSR NC NC
7
RTS NC NC
8
CTS NC NC
9
RI NC NC
Note: NC represents “No Connection”
Table 2.3: COM2~4 Serial Port Pin Assignments
Pin Signal Name
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
15
9
6
324
78
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