Installation instructions
Click on the "Software"、"Application software" button on the product
information page to begin downloading product drivers.
Decompress the "Product driver" archive.
After decompression, find the "Windows XP_Server" archive, double click to
find the 32-bit or 64-bit system installation .exe file.
64 bit
32 bit
http://www.wenshing.com.tw; http://www.rf.net.tw
RD232-H Instruction Manual P.8