GE 450, IC752CTD400 manual Serial Communication Cables, COM1 and COM2 Pin Assignments

Serial Communication Cables

COM1 and COM2 Pin Assignments

1

2

3

4

5

6

7

8

9

DCD

Rx

Tx

DTR

Gnd

DSR

RTS

CTS

RI

a45558

59

16

Serial communication cables for COM1 and COM2 should be correctly terminated.

∙Typically COM1 is used for communications to the PLC and COM2 is used for Host Communications to another device or for a serial mouse.

∙To ensure that the installation meets the EMC radiation specification, the serial cables must comply with the following requirements:

The cables must be of the shielded type.

The D-type connector covers must provide EMC shielding (e.g. metallized plastic or

￿die cast metal covers).

The cables must be terminated with 360 degree termination of the shield, as illustrated below.

14 CIMPLICITY® Display Station Touch Display: IC752CTD400/450 – March 1998 GFK-1425B