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Type this into Google search “FTDI USB RS485 Cable”
Or follow this link directly to the FTDI website;
http://www.ftdichip.com/Products/Cables/USBRS485.htm
Click on the VCP Drivers link;
You will see a table of drivers with the most recent at the top. The
x86 (32bit) driver is recommended.
There is a green and red LED inside the USB connector end of the
cable – when installed correctly the green LED will flash every time
the DIVE gauge sends data, the red LED will flash when CygLink
sends data to the DIVE gauge.
Wiring Problems
Sometimes the cable between the DIVE gauge and the USB
converter is damaged, or has been repaired incorrectly. Although
there are only 2 data wires they must be connected the correct
way around. Double check the connections from the gauge’s
connector to the serial converter connection.
If you have the short serial to USB interface cable – check the
gauge can connect to CygLink using this cable – if it works then
the USB driver must be ok, the problem may lie in the long
umbilical cable.
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