Advantech ARK-7480 5 COM2 Connector, COM2 connector COM2 standard serial port pin assignments

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

1 2 3 4 5

6 7 8 9

Figure 2.4: COM2 connector

Table 2.2: COM2 standard serial port pin assignments

	RS-232	RS-422	RS-485
Pin	Signal Name	Signal Name	Signal Name
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”

ARK-7480 User Manual 12