Omron NT31 NT31C Connecting Directly between RS-232C Ports, Name Model Remarks Delivered with

Connecting to the RS-232C Port at the Host Section 4-1

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.

NT31/NT31C	Host link unit/CPU
	SYSMAC
	C-series PC,
	CVM1/CV-series PC,
	PLC, SRM1

9-pin connector or 25-pin connector

Serial port A (RS-232C,	9-pin type)	9-pin connector
Serial port B (RS-232C,	25-pin type)

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
				CS1-series CS1G/CS1H
				C-series CQM1,
	XM2A-0901		9-pin	C200HS,
			Made by OMRON	C200HX/HG/HE(-Z)E,
				CVM1/CV-series CPUs
Connector				CV500-LK201
			25-pin	C500-LK203
	XM24-2501			CV500-LK201
			Made by OMRON
				C200H-LK201-EV1
	DB-25P		25-pin	3G2A5-LK201-EV1
			Made by JAE	3G2A6-LK201-EV1
				C-series CQM1,
			9-pin	C200HS,
	XM2S-0911			C200HX/HG/HE-(Z)E,
			Made by OMRON
				CVM1/CV-series CPUs
				CV500-LK201
	XM2S-0913		9-pin
Connector			Made by OMRON
hood	XM2S-0911-E		9-pin	CS1-series CS1G/CS1H
			Made by OMRON
			25-pin	C500-LK203
	XM2S-2511			CV500-LK201
			Made by OMRON
				C200H-LK201-EV1
	DB-C2-J9		25-pin	3G2A5-LK201-EV1
			Made by JAE	3G2A6-LK201-EV1
	AWG28 5P		Multi-core shielded cable
	IFVV-SB		Made by Fujikura, Ltd.
Cable
	CO-MA-VV-SB		Multi-core shielded cable
			Made by Hitachi Cable,
	5P	28AWG
			Ltd.

Note After connecting a communication cable, always secure it with the screws.

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