User manual

Using the USB422A/485A serial Port Smart
Interface Converter
Want to connect your terminals or devices with serial port
connection to your PC but don't have a 25-pin serial port
connection? This USB422A/485A converter will get you hooked.
Using this converter for your unit, it provides a single serial port
for connecting to any peripheral with serial interfaces such as
barcode readers, mag-stripe readers, time recorders and access
control systems, etc.
IT is designed in compact size with this converter, users can utilize
the existing serial interface devices in an ease of use environment
such as plug and play. The physical device and bundle software
driver offer a no-specification-change feature that enable your
existing serial interface devices to be used at USB port with
minimum modification.
To ensure the USB422A/485A's satisfactory and trouble-free
operation, please read this manual before proceeding with the
device.