Receiving time/date settings

kpb

Hi,

I have several 510A and E1 outdoor in a separated network without internet access. When losing power they still remember time and date and I was wondering how that works? Obviously not via NTP as the access is (or should be) restricted. And probably not via app as some records are made with correct time and date even if the app has not been started yet.

Any feedback is appreciated.

Moore Ben

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