Connections

 

 

 

 

Section 4-3

1:1 Connections Using RS-422A/485 Ports

 

 

 

 

 

Serial Communications

Computer

 

 

Board

 

 

NT-AL001-E Link Adapter

 

 

 

 

 

Pin

Signal

 

Signal

Shield

Pin Signal

Pin Signal

RS-422A

 

 

 

 

/ 485 In-

 

FG

 

NC

 

 

 

 

terface

 

SD

 

SD

 

 

 

 

 

RS-232C

RD

 

RD

Hood

 

Interface

RTS

 

RTS

 

 

CTS

 

CTS

Terminating resistance ON

 

 

 

5V

4-wire

 

 

DSR

 

DSR

 

 

 

DTR

 

DTR

 

 

 

SG

 

SG

 

 

 

 

 

D-sub, 9-pin

Terminal block

 

5-V (+)

 

 

connector (male)

 

 

 

 

 

 

power (–)

DIP Switch Settings

Pin 1: ON

Pin 2: ON

(terminating resistance)

Pin 3: OFF

Pin 4: OFF

Pin 5: OFF

Pin 6: OFF

42

Page 54
Image 54
Omron CQM1H-SCB41 operation manual Connections Using RS-422A/485 Ports