QSD42908C8 User’s Manual
5
Chapter 1: Product Introduction
1.1 Summary
The QSD42908 network digital video recorder is an excellent digital surveillance product. It
uses embedded MCU and Linux, combining the most advanced technology in the Information
Industry such as video and audio encoding/decoding, hard disk recording and TCP/IP. The
firmware is burned into flash memory, which is more stable and reliable.
The QSD42908 has both the features of a digital video recorder (DVR) and a digital video
server (DVS). It can work as stand alone, or be used to build a powerful surveillance network,
widely used in banking, telecommunications, transportation, factories, warehouses, irrigation, etc.
1.2 Features
Compression
H.264 video compression algorithm (PAL is 15FPS and NTSC is 20FPS).
Supports multi-zone motion detection.
Supports mask function to mask sensitive area.
Supports view tampering alarm function for spiteful camera block.
Supports video signal loss alarm function.
Supports position configurable OSD&LOGO.
Supports both constant bit rate and variable frame rate.
Storage function:
1 IDE interface for 2 HDDs that can support up to 2000GB Each.
Supports HDD S.M.A.R.T function.
Supports FAT32 file system.
Supports many recording modes: manual recording, motion detect record, external alarm
record, motion & alarm record, motion | alarm record.
Supports cycle and non-cycle record mode.
Supports USB flash disk, USB hard disk and USB CD/DVD for backup.
Preview
&
Playback
function
:
Supports one composite and one spot video output, and one VGA output.
Supports fast/slow playback, pause, forward, backward, frame by frame, etc.
Uses define preview layout.
Supports one channel playback
