QSD42908C8 User’s Manual
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Appendix D: DVR Specifications
Model
QSD42908
Compression standard
H.264
Preview resolution
PAL:704*576(4CIF) NTSC704*480(4CIF)
Recording resolution
PAL:352*288(CIF) NTSC352*240(CIF)
Video input
8 channels BNC ( 1.0 Vp-p ,75 Ohm)
Video out
1 channel BNC (1.0Vp-p ,75 Ohm)
Video spot ou
t
1 channel BNC (1.0Vp-p , 75 Ohm)
Frame rate
PAL: 15FPS, NTSC: 20FPS
Audio compression standard
OggVorbis 16Kbps
Audio in
4 channels RCA (2 Vp-p ,1KOhm)
Audio out
1 channel RCA (Linear electrical level,
1KOhm)
Stream type
Video or Video&Audio
Bit rate
32Kbps-2Mbps (user defined) recommend
768Kbps each channel
IDE interface
1 IDE interface , supports 2 HDDs
Network port
10M/100M self-adapt Ethernet port
RS-232 port
1
RS-485 port
T+T- R+R-
USB
1 USB 2.0 interface ,support USB disk, USB
HDD, USB CD/DVD-R/W
VGA
1VGA Port
Resolution:
800*600/60Hz
1024*768/60Hz
1280*1024/60Hz
Alarm in
16 channels
Alarm out
4 channels
Power supply
DC 12V
Power consumption
10W
（
without HDD
）
Working temperature
14 F--131 F
Working humidity
10%-90%
Dimensions
17.5in*11.5in*1.75in
PAL: 176*144(QCIF), 352*288(CIF), 704*288(2CIF), 528*384(DCIF), 704*576(4CIF);
NTSC: 176*120(QCIF), 352*240(CIF), 704*240(2CIF), 528*320(DCIF), 704*480(4CIF).
