User manual

RS-422
USB Port
RS-485
LINK
TX RX
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Technical And Operational Description
Remark: One USB485A converter can be
used for connecting two units of
RS-485 devices.
LINK LED turns on when the USB422A/485A unit is ready
for use.
LINK
TX LED turns on when the data is
sending from USB port to RS422/485 device.
TX
RX LED turns on when the data is
sending from RS422/485 device to USB port .
RX
Connecting with the Computer USB port or Hub.
USB connector
Connecting with the terminal device,which is equipped with
RS422/485 interface.
RS422/485 connector
Front Panel of USB422A/485A