Com2 Connector - Advantech ARK-7480 User Manual

2.2.5 COM2 Connector

The ARK-7480 provides a D-sub 9-pin connector, which supports one
RS-232/422/485 serial communication interface port of COM2.
The default setting of COM2 is RS-232.
The RS-422/485 mode of COM2 can be support via replacing the existing
of internal RS-232 cable to RS-422/485 cable of part number 170002175,
and adjust the jumper of JP5.
Please also refer to Section 3.4 of "COM2 RS-232/422/485 Jumper set-
ting (JP5)" for the jumper table of JP5
Table 2.2: COM2 standard serial port pin assignments
RS-232
Pin Signal Name
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
Note: NC represents "No Connection"
ARK-7480 User Manual
1 2 3
6 7 8
Figure 2.4: COM2 connector
RS-422
Signal Name
Tx-
Tx+
Rx+
Rx-
GND
NC
NC
NC
NC
12
4 5
9
RS-485
Signal Name
DATA-
DATA+
NC
NC
GND
NC
NC
NC
NC