User guide

Digital Video Hardware User Guide
revision 38 — 21
Chapter 3: Digital Video System
The Lenel Digital Video Recorder (LDVR) enables monitoring, recording,
retrieval, and playback of video. The system provides recording of multiple video
channels, continuous recording of video channels simultaneous with playback of
video channels, and centralized archiving.
The digital video system records and compresses video input, storing the data on
the hard drive for short-term storage. Long-term storage and retrieval is achieved
by archiving the video to offline storage.
The number of hours of recorded video that can be stored on a hard drive or
archived to archiving media depends on the capacity of the media, the number
and configuration of video channels, the compression rates, and any motion in
the camera's field of view.
The digital video server is controlled by PC workstations via the Local Area
Network (LAN). While the digital video server is recording and archiving,
authorized users can simultaneously monitor real-time video as well as retrieve
video for playback, using Alarm Monitoring workstation applications. Video can
also be retrieved according to a range of search criteria, specified by the user. At
any time during the recording process, a video frame can be frozen and its image
captured and saved as a graphic file.
The digital video server is compatible with both PAL and NTSC standards in
black and white and in color.
The system can be configured with a single video server, incorporating up to 32
video input channels. The system can also be configured as a multi-digital video
server system, incorporating an unlimited number of recorders and archiving
units.
The LDVR-8 controls the processing, conversion and compression of all
recorded video information. Each recorder can contain up to four LDVR-8's with
each supporting eight input channels. The compression used to store video on the
recorder is MPEG-1.
System Components
Item Special
CPU 1.6 GHz processor
Heatsink & Fan included
FC-PGA370, 256 KB Cache
Front Side Bus