Videoswitch VDM User Manual download pdf (Page 51)

Videoswitch VDM Digital Recorder

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The DEFAULT key can be used to turn all zones on or off. The YES key turns the selected row on and off.

10.4.4.2 Enable Activity

The activity detector for each camera may be set to be either always active, or active only during the Activity

periods specified (section 10.4.2.3).

10.4.4.3 Alarm Polarities

Each alarm input may be set to normally open or normally closed. If an input is not used, ensure it is set to

normally open, or the system will continuously be detecting an alarm condition.

10.4.4.4 Enable Alarms

The alarm input for each camera may be set to be either always active, or active only during the Alarm

periods specified (section 10.4.2.2).

10.4.4.5 Alarm Input/Camera Mapping

Each alarm input may be mapped to any camera for the purpose of “Pulling-up” a full screen image. The

default is that alarms 1 to 16 map to cameras 1 to 16 respectively, but you may map more than one alarm to

a camera (subject to the maximum number of 16 alarm inputs). Alarms may be given titles (section

10.2.7.3), which are subsequently displayed in the Event log. This is useful for recording, for example,

multiple till or PIR events on some of the cameras.

10.4.4.6 Permit alarm/activity locking?

If this option is set to “YES”, all alarm and activity detection may be temporarily locked out via the System

Information screen (Section 9.3).

10.4.4.7 Pull-Up Settings

This option selects whether a full screen image is “pulled-up” when an alarm or activity condition occurs. Full

screen pull-up may be applied to either the main or the spot monitor.

10.4.4.7.1 Pull-Up Monitor

This option specifies whether the MAIN or SPOT monitor (or neither) is affected when an alarm occurs.

10.4.4.7.2 Pull-Up Hold Time

When a full screen image is pulled-up, it is held for this time even if further alarms occur on other cameras.

10.4.4.7.3 Sequence Time

If multiple alarms exist, the camera images from each will be displayed in sequence, with a dwell time on

each as specified by this option.

10.4.4.7.4 Relay Hold Time

When an alarm or activity event occurs, the event relay operates. It is held for this length of time after all

alarms and activity has finished. This timer also determines how long the Activity/Alarm settings will be

applied (section 10.4.3.3).

If the Relay Hold Timer is set to zero, the relay does not operate and the recording mode does not use the

Alarm/Activity settings. This setting can be useful if you wish to log alarms and activity in the event log, but

do not wish to change any of the record settings (rate, cameras or quality).

10.4.4.7.5 Restore after Activity/Alarm

This setting determines whether the camera and screen mode that applied before an alarm or activity

condition is restored after all the alarmed cameras have been displayed and the pull-up hold times have

elapsed.

10.4.4.8 Display Active Pixels

This option allows the currently active pixels to be displayed (as a running person) when activity detection is

used. The purpose of this is to monitor whether appropriate pixels have been enabled and whether the

sensitivity setting is suitable.

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Videoswitch VDM User Manual Page 51

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