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4-1SectionConnecting to the RS-232C Port at the Host
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4-1-2 Connecting Directly between RS-232C Ports
The method for connection between the RS-232C ports of the NT31/NT31C and
the host is described here.
Serial port A (RS-232C, 9-pin type)
Serial port B (RS-232C, 25-pin type)
Host link unit/CPU
NT31/NT31C
SYSMAC
C-series PC,
CVM1/CV-series PC,
PLC, SRM1
9-pin connector
or 25-pin
connector
9-pin connector
Cable with RS-232C connectors
Recommended Connector Cable
When making the connector cable, as far as possible use the recommended
connectors, connector hoods, and cables indicated in the table below. Some
units come supplied with one connector and one connector hood.
Check the required components and prepare them in advance.
Name Model Remarks Delivered with
Connector
XM2A-0901
9-pin
Made by OMRON
CS1-series CS1G/CS1H
C-series CQM1,
C200HS,
C200HX/HG/HE(-Z)E,
CVM1/CV-series CPUs
CV500-LK201
Connector
XM24-2501
25-pin
Made by OMRON
C500-LK203
CV500-LK201
C200H-LK201-EV1
DB-25P
25-pin
Made by JAE
3G2A5-LK201-EV1
3G2A6-LK201-EV1
XM2S-0911
9-pin
Made by OMRON
C-series CQM1,
C200HS,
C200HX/HG/HE-(Z)E,
CVM1/CV-series CPUs
CV500-LK201
Connector
XM2S-0913
9-pin
Made by OMRON
Connector
hood
XM2S-0911-E
9-pin
Made by OMRON
CS1-series CS1G/CS1H
XM2S-2511
25-pin
Made by OMRON
C500-LK203
CV500-LK201
C200H-LK201-EV1
DB-C2-J9
25-pin
Made by JAE
3G2A5-LK201-EV1
3G2A6-LK201-EV1
AWG28 5P
IFVV-SB
Multi-core shielded cable
Made by Fujikura, Ltd.
Cable
CO-MA-VV-SB
5P 28AWG
Multi-core shielded cable
Made by Hitachi Cable,
Ltd.
Note After connecting a communication cable, always secure it with the screws.