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Chapter 1 Product Features And Specifications
1. Product Specifications
Parameter 4 Channel 8 Channel
Processor AMD ELANSC520/133 embedded microprocessor
Operation system Real-time operation system（ RTOS）
Model DH-DVR0404RW DH-DVR0804RW
Video input 4 Channel (NTSC/PAL) BNC（ 1.0V
P- P
，
75Ω） 8 Channel (NTSC/PAL) BNC（ 1.0V
P- P
，
75Ω）
Video output 1 Channel PAL/NTSC， BNC（ 1.0V
P- P
，
75Ω）video signal 1 Channel VGA display output
Audio input 4 Channel 200-1000mv10KΩ (RCA) 8 Channel 200-1000mv10KΩ (RCA)
Audio output 1 Channel 2000mv 1KΩ (RCA)
Video display 1， 4 window display 1,4,9 window display
Video standard NTSC（ 525 line, 60f/s）， PAL（ 625 line, 50f/s）
System resource Real-time recording, one channel playback and network operation simultaneous
Image resolution Real-time monitor 704× 576, playback 352× 288, VGA output 720× 576
Motion detection Area setting: 396 detection areas on the screen; detection sense setting: 3 levels detection sense for each
area
Video compression MPEG-4 CBR (fixed frame rate); MPEG-4 VBR (variable frame rate)
Audio compression ADPCM G.729
Image compression
rate
352× 288CIF format， 176× 144QCIF format， 704× 576 4CIF format
Video recording
speed
Real-time mode: PAL 1frame/10second-25f/s for each channel adjustable; NTSC 1frame/10second-30f/s
for each channel adjustable
Image quality 6 levels selectable
Hard disk Inside equipped 4 IDE ports, able to install 8 HDDs inside
HDD space used Audio： ADPCM 28.8Mbyte/hour G.729： 3.6Mbyte/hour Video： 40-460Mbyte/hour
Alarm input 8 channel voltage alarm input（ ＋ 5～＋15V D. C. Needed for the alarm input）
Alarm output 3 channels output, （ output in open/close contact or controllable ＋ 12V output）
Alarm relay 30VDC 1A, 125VAC 0.5A（ relay output）
Network connection RJ45 10M/100M Ethernet connection
Pan-tilt control RS485
Power 110VAC/220VAC
Power consumption 60W 70W
Working temperature － 10℃－＋55℃
Working humidity 10℅－90℅
Barometric pressure 86kpa－ 106kpa
Size 2U standard industrial case， 441 (breadth)x430 (depth)x89mm (height)
Weight 11KG
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