NVR Configurations | 93
800-18160 - B - 07/2014
Anti-dither Select an anti-dither time, from 5s to 600s. The anti-dither time
starts when a second alarm is detected, and it determines
what happens when a second alarm is detected. It determines
if a second alarm will trigger another alarm action such as
showing a screen alert, sending an email, starting a buzzer,
flashing a light, taking a snapshot, or recording video. During
the anti-dither time, if the system detects another alarm, the
system will not be activated.
If you set the Anti-dither time for 10 seconds, then each
activated alarm action will last for 10 seconds. But if the alarm
is triggered again 5 seconds after the anti-dither time began,
then alarm actions such as triggering a buzzer, a snapshot,
and recording will reset and last another 10 seconds from that
second alarm trigger time. There will not be another screen
prompt or alarm upload, nor will another email be sent. After
the 10 seconds is over, if the system detects another alarm
after the anti-dither time is over, it will generate another alarm.
The stay time here does not include the latch time.
Alarm Out Select the device output port, from 1 to 3. Select the
corresponding port(s) so the system can activate the
corresponding alarm devices when an alarm occurs.
Latch When the anti-dither time has ended, the channel alarm you
have selected will last this period. Select from 1s to 300s.
Latch does not work with other alarm activation operations.
Latch is still valid even if you directly disable the alarm event
function. The system can delay the alarm output for a
specified time after an alarm ends. The value ranges from 1s
to 300s.
Show Message Click to enable a pop-up message on your local host PC
screen to let you know an alarm has occurred.
Alarm Upload Click to enable the system to upload the alarm signal to the
network (including an alarm center and the web client). The
system uploads only the alarm channel status.
Go to the Web operation, and then go to the Alarm interface
to set the alarm event and alarm operation. See Enabling and
Disabling Alarms on page 157 and Configuring Alarms on
page 184.
Send Email The system can send an email when an alarm is detected.
When you have enabled the Snapshot function, the system
can also send an image attached to the email. Go to Main
Menu
SettingNetworkEmail to configure the email
settings. See Configuring the Email Settings on page 84.
Record Channel Select a recording channel. See How to Record on page 94 for
more about recording.
PTZ Activation Not supported.
Delay The system can delay recording for a specified amount of time
after an alarm has ended. Select from 10s to 300s.
Table 3-22 Alarm Configurations
Parameter Description
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