Chapter 3

Operation

 

 

3.2 Multidrop

Multidrop configuration means that more than two devices (Max. 10 for RS-422; Max. 32 for RS-485) can be linked all together to communicate one another through many A50 (or A51) devices. In this configuration, one of the A50 (or A51) will be connected to a master device and the rest of A50 (or A51) devices will be connected to any other slave devices.

4-wire Full Duplex

Master DTE/

DCE

A50/A51

TA RS-232 RS-485 TB RB RA GND

A50/A51

RA

RB RS-485 RS-232

TB

TA

GND

A50/A51

RA

RB RS-485 RS-232

TB

TA

GND

Slave DTE/

DCE

Slave

DTE/

DCE

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Image 22
Moxa Technologies A60, A51 manual Multidrop