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

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