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NetDVR.book Page 7 Wednesday, May 12, 2004 4:06 PM
NetDVR | User's Guide | Introduction
7
1. Introduction
1.1 Description
4-channel network DVR
NetDVR is a digital video recorder (DVR) that is controlled from a client PC through an
Ethernet connection using the TCP/IP protocol. The unit includes a Video compression
device, a Web server, a Networking interface and a hard disk (HDD). It requires up to four
external cameras, a power supply and a network connection to operate. The internal
settings allow the adaption of the unit for NTSC or PAL cameras.
Protected data on the HDD
NetDVR records and protects images on its HDD at a maximum speed of 30 frames (or
images) per second (fps). It incorporates a file system that prevents recorded data from
being damaged or lost in the event of sudden power failure. The HDD is built in an
externally accessible rack.
Efficient image compression
NetDVR utilizes Wavelet still image compressing. It has a 32-bit RISC CPU for more
efficient image processing.
Simple installation and additional functions
Its functional firmware is stored in an 8-MB flash memory chip. The firmware can be
upgraded remotely via Internet or Intranet. The NetDVR connects to external devices such
as sensors, pan/tilt mechanisms, zoom lenses, etc., via an HD-15 port (RS -232 & RS-485).
All external devices can be remotely controlled. The NetDVR controls 4 external CCD
cameras, (including existing analogue CCTV cameras) by connecting them to video input
ports.
HDD protection
The internal hard disk drive is of the same specification as used in laptop computers.
Therefore the NetCam DVR should be handled with care while in operation. Excessive
shock or vibration may cause a disk crash which damages the disk and causes loss of data.
Recommendation
Mount the NetDVR on a stable surface and avoid shock and vibration especially during
operation. Handle with care.
Indoor/Outdoor use
The operating temperature range of the NetDVR supports indoor application only.
Bosch Security Systems | 2004-01
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