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Phason Support Forum » Frequently asked questions (FAQs) » Accessories »  RS485-FD stops communicating and requires restart

RS485-FD stops communicating and requires restart

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  1. If Windows goes to sleep the RS485-FD converter will stop communicating. When Windows wakes up it will not resume communication with the RS485-FD converter without a restart.

  2. If there is low power to the USB port, the RS485-FD may turn off and require a restart.


  1. Set Windows and USB ports to NEVER go to sleep in Windows Control Panel power options. Instructions for Windows 7/8 can be found here.

  2. Use a powered USB port to power the RS485-FD to ensure stable power levels.

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