Omron NT631 Operation Manuals page 118

Connecting to the Host's RS-232C Port
Notice
Notice
110
S The maximum tensile load of the recommended cable is 30 N. Do not exceed
this load.
S After connecting a connecting cable, always tighten the connector screws.
S Recommended connectors, cables and crimp terminals for RS-422A/485
When making an RS-422A/485 connecting cable, as far as possible use the rec-
ommended parts indicated in the table below. Some units come supplied with
one connector and connector hood.
Check the required parts and prepare them in advance.
Name Model
XM2A-2501
Connector
DB-25P F-N
XM2S-2511
Connector
hood
DB-C2-J9
Cable TKVVBS4P-03
1.25-N3A
(fork type)
Crimp Crimp
terminals
Y1.25-3.5L
(fork type)
The terminal screws of the NT631/NT631C are M3.5 specification. When wir-
ing, use crimp terminals for M3.5 use. Tighten terminal screws with a tightening
torque of 0.8 N@m.
Always use crimp terminals for wiring.
- Examples of applicable terminals
Fork type
7 mm or less
Maker
25-pin type Delivered with the following units:
Made by OMRON C500-LK203
Delivered with the following units:
25-pin type
3G2A6-LK201-EV1
Made by JAE
3G2A5-LK201-EV1
25-pin type Delivered with the following units:
Made by OMRON C500-LK203
Delivered with the following units:
25-pin type
3G2A6-LK201-EV1
Made by JAE
3G2A5-LK201-EV1
Tachii Electric
Wire Co., Ltd.
Japan Solderless
Recommended cable size:
Terminal MFG
AWG22 to 18
Morex Inc. (0.3 to 0.75 mm
Round type
7 mm or less
Section 5-1
Remarks
2
)