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What is a Watchdog and what does it do?

April 26, 2017Watchdog

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What is a Watchdog and what does it do?

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A Watchdog has two functions. First it acts as an RS-485 to RS-232 converter. The other function is a hardware based failsafe. The Watchdog receives a heartbeat signal from the DVR Server application every 30 seconds. If this heartbeat signal is not received (due to DVR Server application lockup, Windows lockup, or any system lockup) the Watchdog will restart the DVR Server, the DVR Server application will initialize and start recording again.