How to check if XGSZ24 works properly.

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To check if the RS232/RS484 works properly, it needs to connect the converter on PC RS232 connector and wrap the RS 485 emission to reception like:
RS485 to RS232 converter

Now just use the hyperterminal windows on RS232 port.
All characters entered the keyboard should appear in the hyperterminal window.
If none appears, the converter will not work.