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
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 |