Dahua Smart 1U User Manual page 166

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Configure the settings for the local alarms. See Table 5-46.
Parameter
Alarm In
Alarm Name
Enable
Type
Period
Anti-Dither
Alarm Out
Latch
Description
Select the channel number.
Enter the customized alarm name.
Enable or disable the local alarm function.
In the Type list, select NO or select NC as the voltage output type.
Click Setting to display setting interface.
Define a period during which the motion detection is active. For details,
see "Setting Motion Detection Period" section in "5.10.1.1 Configuring
Motion Detect Settings."
Configure the event detection lasting time. The system records only
one event during this period. The value ranges from 5 seconds to 600
seconds.
Click Setting to display setting interface.
General Alarm: Enable alarm activation through the alarm devices
connected to the selected output port.
External Alarm: Enable alarm activation through the connected
alarm box.
Wireless Siren: Enable alarm activation through devices
connected by USB gateway or camera gateway.
Set a length of time for the Device to delay turning off alarm after the
external alarm is cancelled. The value ranges from 0 seconds to 300
seconds, and the default value is 10 seconds.
Local Configurations 156

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