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● COM1: RS-422/485

This interface is used to connect the Xpanel to the host (PLC), via n RS-232C or RS-422/485 cable.

COM1 and COM2 share pins of 9-Pin DSUB connector.

Connector

Pin No.

Name

Description

Port

image-20240912-045150.png

1

SDA

Send Data A

COM1

2

RD

Receive Data

COM2

3

TD

Transmit Data

COM2

4

RDA

Receive Data A

COM1

5

SG

Signal Ground

COM1, COM2

6

SDB

Send Data B

COM1

7

RTS

Request To Send

COM2

8

CTS

Clear To Send

COM2

9

RDB

Receive Data B

COM1

image-20241025-002448.png

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