Moxa Technologies A51, A60 manual Simplex/Transmit, Receive

Operation • • Chapter 3

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 Half-duplex mode

On

SW2	Pin1	Pin2	Pin3	Pin4
TxD enabled by RTS	Off	On	X	X
RxD enabled by / RTS	X	X	Off	On

3.3 Simplex/Transmit, Receive

Simplex configuration means that more than two devices (Max. 10 for RS-422; Max. 32 for RS-485) can be linked all together to communicate through many A50/A51 devices. Its configuration is like the Multidrop's, but the master device can talk only and the slave devices can listen only.

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