Moxa Technologies A60, A51 LED Indicators, Switch settings table of SW1 and SW2 is as follows

Chapter 2 • • Installation

Switch settings table of SW1 and SW2 is as follows:

SW1
*Full-duplex mode				Off
Half-duplex mode				On
SW2	Pin1 Pin2 Pin3 Pin4
*TxD always enabled	On	Off	X	X
TxD always disabled	Off	Off	X	X
TxD enabled by RTS	Off	On	X	X
*RxD always enabled	X	X	On	Off
RxD enabled by /RTS	X	X	Off	On

Note: ‘ * ‘ means default settings , ‘ X ‘ means don’t care

2.3 LED Indicators

There are LED indicators for TxD, RxD, RTS, and PWR on top of A50/A51. The indicator is not lighted on when not connected with signal or power. On the contrary, it will be lighted on and be in one of the red, green or orange colors.

TxD indicator stands for data transmitting from RS-232 to RS-422/RS-485. It shows green when connected and no data transmitting. It shows orange when connected and transmitting data.

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