Siemens SISTORE MX Manuel d'utilisateur télécharger pdf (Page 49)

Recording modes

Siemens Building Technologies

Fire Safety & Security Products 01.2008

13 Recording modes

With the hardware integrated into SISTORE MX, it is possible to record video

sequences from different cameras when using network or IP cameras. Signals

which are fed into the recording system from outside are used to control the

operation of the SISTORE MX during this process.

The following recording modes are available:

z Event-triggered recording

z Long-time recording

All configured cameras operate initially in long-time recording mode and supply live

images. Time settings and events assigned to the respective cameras determine

whether the cameras are recorded or not.

13.1 Long-time recording

Long-time recording is a recording mode where videos are saved on the hard disk

until this is completely full. After that, the oldest pictures will be overwritten

continuously (time lapse mode).

13.2 Event-triggered recording

There are two possible modes of event-triggered recording:

z without pre-alarm history

z with pre-alarm history

Recording without pre-alarm history means that the recording is triggered either via

an alarm contact, through motion detection, or via the software interface.

Recording with pre-alarm history means that the camera must already be

recording. If no alarm occurs, the recording (pre-trigger time) is overwritten after a

preset period of time. If an alarm is triggered - either through an alarm contact,

motion detection or the software control -, the post-alarm time is recorded

automatically. When this preset period of time has expired, the pre-alarm and post-

alarm sequences are saved and a new pre-alarm recording is started.

It is possible to activate a write protection for event-triggered recording.

NOTE

Please note that pre-alarm images will be saved permanently only after an alarm is triggered. If no

alarm is triggered, then the pre-alarm images will not be saved permanently. An alarm may be

triggered either by an event (e.g. motion detection) or by an operator, for instance when pressing the

alarm button during or after a bank robbery.

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Siemens SISTORE MX Manuel d'utilisateur Page 49