Author Topic: Warning when using DIP Switch #3 - RI (Ring Indicator) Ring Mode  (Read 3521 times)

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** NOTE **   - Do not turn on this switch if there is no device (like a MODEM) on the Serial Output port that drives the RI pin. Otherwise this pin will float and spurious noise will cause the watchdog to think it is “seeing” RI activity and it will prematurely reset.