Omron NT31 Operation Manuals page 100

Connecting to the RS-232C Port at the Host
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
9-pin connector
or 25-pin connector
S 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
Connector
Connector
hood
Cable
Note After connecting a communication cable, always secure it with the screws.
Serial port A (RS-232C, 9-pin type)
Serial port B (RS-232C, 25-pin type)
Cable with RS-232C connectors
Model
9-pin
XM2A-0901
Made by OMRON
25-pin
XM24-2501
Made by OMRON
25-pin
DB-25P
Made by JAE
9-pin
XM2S-0911
Made by OMRON
9–pin
XM2S-0913
Made by OMRON
9–pin
XM2S-0911-E
Made by OMRON
25-pin
XM2S-2511
Made by OMRON
25-pin
DB-C2-J9
Made by JAE
AWG28 5P Multi-core shielded cable
IFVV-SB Made by Fujikura, Ltd.
Multi-core shielded cable
CO-MA-VV-SB
Made by Hitachi Cable,
5P 28AWG
Ltd.
Host link unit/CPU
9-pin connector
Remarks
CS1-series CS1G/CS1H
C-series CQM1, C200HS,
C200HX/HG/HE (-ZE),
CVM1/CV-series CPUs
CV500-LK201
C500-LK203
CV500-LK201
C200H-LK201-EV1
3G2A5-LK201-EV1
3G2A6-LK201-EV1
C-series CQM1, C200HS,
C200HX/HG/HE- (ZE),
CVM1/CV-series CPUs
CV500-LK201
CS1-series CS1G/CS1H
C500-LK203
CV500-LK201
C200H-LK201-EV1
3G2A5-LK201-EV1
3G2A6-LK201-EV1
Section 4-1
SYSMAC
C-series PC,
CVM1/CV-series PC,
PLC, SRM1
Delivered with
89