Pro-face GP-577R Series Replacement Manualbook page 20

(4) In the Communication Port field, select [COM], specify the COM port to which the
cable is connected, and click [OK].
If you use a USB transfer cable (GPW-CB03)
You can check the COM port for the USB transfer cable (GPW-CB03),
which is assigned to the PC, with the Device Manager of Windows.
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