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

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

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