the DS-4004HCcan be set 4 channels as cif compression resolution or 2 channels as 4cif compression resolution real time.
the DS-4008HC can be set 8 channels as cif compression resolution or 4 ch as 4cif compression resolution real time.
Specifications:
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Model
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DS-4004HC
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DS-4008HC
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video input
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4 channels (pal/ntsc)
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8 channels (pal/ntsc)
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bnc( vp-p = 1.0v, 75 ohm)
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audio input
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4 channels
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8 channels
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bnc( vp-p=2.0v,snr > 83db, linear electrical level ,1000 ohm)
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preview resolution
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resolution: 704*576(pal), 704*480(ntsc)
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video compression
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H.264, support cbr, vbr;
frame: 25f/s(pal), 30f/s(ntsc)
output : 32kbps-1000kbps(cif) or 70kbps-4000kbps(4cif)
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compression resolution
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4cif : 704*576(pal) , 704*480(ntsc)
dcif : 528*384(pal) , 528*320(ntsc)
2cif : 704*288(pal) , 704*240(ntsc)
cif : 352*288(pal) , 352*240(ntsc)
qcif : 176*144(pal) , 176*120(ntsc)
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audio compression
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oggvorbis, sample ratio is 16khz, output ratio is 16kbps
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power consumption
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less than 3.5w
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less than 7w
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working temperature
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- 10 ~ + 50 celsius
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working humidity
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10 % ~ 90 %
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dimension
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155mm * 95mm
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185mm * 107mm
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computer configuration
(recommend)
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mainboard: intel 845 or 865 chipset
memory: 256mb
display adapter: geforce mx400/420/440 series or ati radeon 7000/7200/7500/8500/9000 series
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Features & Functions :
h.264(mpeg-4/part 10) video compression standard leads to high compression ration and good video quality
oggvorbis audio compression standard, with 16khz sampling rate and 16kbps output bitrate
real-time video and audio compression, no frame lost
4cif preview resolution
comply with pci 2.2 standard , a pc can support up to 64 channels
support windows 2000/xp and linux operating system
provide full sdk , demonstration with source code
provide player sdk and network sdk for pc platform . less than 1 second delay in lan
setable i. b.p frame sequence
setable video quality and bitrate
setable brightness , contrast , saturation and hue of video signal
support motion detection
support osd , logo and mask overlay
support watermark technology
support double encoding
