Moxa Technologies A60, A51 manual Point-to-point, Wire Full Duplex

Page 20

Chapter 3

Operation

 

 

3.1 Point-to-point

Point-to-point configuration means two devices which locate at two different places can be linked together to communicate through a couple of A50 (or A51) converters.

4-wire Full Duplex

 

 

 

A50/A51

 

 

 

 

 

 

 

 

 

 

 

RS-232 RS-422/

TA

 

 

 

 

 

DTE/

 

 

TB

 

 

 

DCE

RS-485

RB

 

 

 

 

 

 

 

 

 

RA

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

A50/A51

RA

RB RS-422/ RS-232 TB RS-485

TA

GND

DTE/

DCE

In the graph, TA, TB, RA and RB could be either from RJ-45 or Terminal Block. The settings of the switches for each A50 (or

A51) are as follows:

SW1

Full-duplex mode Off

SW2

Pin1

Pin2

Pin3

Pin4

TxD always enabled

On

Off

X

X

RxD always enabled

X

X

On

Off

12

Image 20 Contents
A50/A51/A60 A50/A51 A60 Copyright Notice Moxa Internet Services Table of Contents Part II A60 RS-232 Surge Protection Page Introduction OverviewFeatures and Specifications IntroductionSpecifications A50/A51 with Mounting Kit Package Check List Introduction Installation Procedure Switch Function DescriptionLED Indicators Switch settings table of SW1 and SW2 is as followsRS-422/RS-485 Pinouts A50/A51 RJ-45 Jack Terminal Block Connector Pinouts Signals Chapter Operation Wire Full Duplex Point-to-pointWire Half Duplex Multidrop SW1 DTE Simplex/Transmit, Receive A50/A51A50/A51 Self Test Operation Appendix a RS-232 Pinouts & Cable Wiring Appendix a RS-232 Pinouts and Cable Wiring Appendix a RJ-45 Connector DB-25 Female P e n dxi B Appendix B Impedance Matching and Termination Resistors Appendix C Troubleshooting Appendix C Troubleshooting Chapter Introduction Features A60 with Mounting Kit ~32~ Installation TxD indicator signal from local port RxD indicator signal from remote port ~36~ Ppendix a Appendix a ∙ RS-232 Pinouts and Cable Wiring ∙ ~40~ Ppendix B
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