User`s guide

Table Of Contents
21-0400E v2.3.3
Welcome Common Admin
Config
Install Tech-Ref
91
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When finished, click [OK], and then click [X] to
close the list (upper-right corner).
Attention: To recognize any DSR Configuration
changes made while the Video Server software is
running, you may need to restart the software.
18.4
Setting up Pre-Alarm
Recording
The NetVision system can make continuous
short recordings (1 - 300 sec.) during
scheduled alarm-monitoring times, with only
the two most recent being retained at any time
(for each camera). When an alarm is
triggered, this provides a recording of the
scene just before the alarm occurred without
using up a lot of hard drive space. This
pertains to recording that is triggered by
external sensors/inputs, or video motion
detection.
TechTip: Scheduled (and manual /
instant) recording are not available while
pre-alarm recording is in effect on a
specific camera (i.e., during the scheduled
alarm/monitoring times).
Locator: (Logged in at the Video Server as
a "Supervisor"),
Select: [Utility], then [Recorder Setting].
Select Alarm , and then make your desired
selections for each camera:
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(External Alarm Input)
To support pre-alarm recording, the external
input must be enabled for the specific camera
(even if you're using this only with video motion
detection).
External Sensor Triggered Recording: This
feature is covered separately.
(browse / previous
topic)
.
(Pre-Alarm Recording)
Enable: Select this if pre-alarm recording is to
apply to this camera.
(in sec): The duration for pre-alarm
recordings (1 - 300 sec.).
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When finished, click [OK], and then
[Close] the utility menu.