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![](https://files.manualsfile.com/33395973-ipc-hdw1239dt-led-saw/bg12.png)
Operation Manual
4
Alarm Setting
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The alarm is triggered when an external alarm input device inputs alarm.
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When an alarm is triggered, the system performs linkages such as recording, alarm output,
sending email, PTZ operation, and snapshot.
Abnormality
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SD card error, network disconnection, illegal access, voltage detection and security exception.
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When SD card error or illegal access is triggered, the system links alarm output and sending
email.
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When network disconnection alarm is triggered, the system links recording and alarm output.
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When the input voltage is more or less than the rated voltage, the alarm is triggered and the
system links sending email.
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