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2.3.Installing the hardware
The first step is to directly connect the USB-485 converter to a free USB port of the
computer. The operating system will find a new hardware called “USB to RS422/485
adapter” and will launch the “Found New Hardware Wizard”. The drivers are found in
the supplied USB pen drive, so it must be inserted in a USB port during the
installation process.
The installation process follows these steps:
1) The converter is detected and the installation of the driver (called Prolific USB-toSerial Bridge) begins.
2) Sometimes the operating system prompts for connecting to “Windows Update”.
Select “No” and continue with “Next”.
3) Then select the option “Install from a list or specific location (Advanced)”
4) Select “Search for the best driver in these locations” and check the option “Search
removable media (floppy, CD-ROM …).
5) The driver has been installed. Now click “Finish”.
2.3.1.Checking the installation
In order to check that the converter has successfully been installed and the assigned
COM port number, go to the Device manager (under Control Panel, System
Properties, and Hardware). A new entry is shown, as following:
Ports (COM & LPT)
Prolific USB-to-Serial Bridge (COMx)
where “x” stands for the port number. Each time the converter is connected it will get
the same COM port number. See also Fig. 6.
Fig. 6 Device manager view
This entry is only active while the converter USB-485 is connected to the computer.
DSPController.Version 1.2 ENG
Feb 09
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