Multitech MultiModem ZBA MT9234ZBA-USB-CDC User Manual page 12

After installing, ensure the MT9234ZBA-USB is working by registering it. To do so, go to the following website and follow
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the instructions there:
http://www.multitech.com/en_US/TOOLS/Forms/register/warranty.asp
MT9234ZBA-USB User Guide
Chapter 2 – Installing the Modem
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