USER MANUAL
5.3.2 I/O
This is an optional function, it will appear if your NVR supports sensor I/O (NR532XA), and you
connect external sensor I/O alarm devices to work with the NVR.
Alarm In: I/O channel.
Alarm Type: There are 3 types for your choice: Normally-Open, Normally-Close, and OFF.
Choose the one to match your sensor type, or choose OFF to close the sensor trigger function.
Buzzer: The NVR can use its internal buzzer to emit an alarm tone. You can set the buzzer
duration in seconds when a sensor is triggered.
Alarm out: Tick to enable external alarm device to emit an alarm tone when a sensor is triggered.
Latch Time: you can set how long the buzzer will sound when external sensor is triggered (10s,
20s, 40s, and 60s).
Record: Click icon and choose which channel(s) you want to record when the motion
detection is triggered.
Post Recording: You can set how long alarm record will last when alarm ends (30s, 1minutes,
2minutes, 5minutes).
Show Message: Display the alarm messages on the screen when sensor is triggered.
Send Email: Set to send email to specified email when sensor is triggered.
Full Screen: When sensor is triggered, the corresponding channel will be switched to the full
screen mode.
FTP Upload: To upload alarm images to FTP server when I/O alarm is triggered. To enable FTP,
please view 5.4.4 FTP.
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