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Technical Overview - Siemens SISTORE AX9 User Manual

Cctv fire & security products
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Introduction
1.2

Technical Overview

12
Siemens Building Technologies
Fire & Security Products
Your DVR can replace both a time-lapse VCR and a multiplexer in a security
installation. However, it has many features that make it much more powerful and
easier to use than even the most advanced VCR.
The DVR converts analog PAL or NTSC video to digital images and records them
on a hard disk drive. Using a hard disk drive allows you to access recorded video
almost instantaneously; there is no need to rewind tape. The technology also
allows you to view recorded video while the DVR continues recording video.
Digitally recorded video has several advantages over analog video recorded on
tape. There is no need to adjust tracking. You can freeze frames, fast forward,
fast reverse, slow forward and slow reverse without image streaking or tearing.
Digital video can be indexed by time or events, and you can instantly view video
after selecting the time or event.
Your DVR can be set up for event or time-lapse recording. You can define times to
record, and the schedule can change for different days of the week and user
defined holidays.
The DVR can be set up to alert you when the hard disk drive is full, or it can be set
up to record over the oldest video once the disk is full.
Your DVR uses a proprietary encryption scheme making it nearly impossible to
alter video.
You can view video and control your DVR remotely by connecting via modem or
Ethernet. There is a SCSI port that can be used to record or archive video to
external hard disk drives, and also there are two USB ports that can be used to
upgrade the system or copy video clips to external hard disk drives, CD-RW drives
or flash drives.
NOTE:
This manual covers the 9- and 16-channel digital video recorders.
The DVRs are identical except for the number of cameras and alarms that can be
connected and the number of cameras that can be displayed.
For simplicity, the illustrations and descriptions in this manual refer to the 16-
camera model.
SISTORE AX9 AX16_EN.doc
09.2004

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