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Appendix B Specifications
Model name DVR-470 DVR-1670
Video
compression H.264
Preview
resolution PAL：704*576 (4CIF), NTSC：704*480 (4CIF)
Playback
resolution CIF/QCIF
Video input 4 16
Video input
interface BNC (Electrical Level：1.0Vp-p, resistance：75Ω)
Video output 1 channel, BNC (Electrical Level：1.0Vp-p, resistance：75Ω)
Video loop out 4 16
Total frame
rate
PAL：100FPS
NTSC：120FPS
PAL：200FPS
NTSC：240FPS
Stream type Video/Video&Audio Video/Video&Audio
Max bit rate 32Kbps--2Mbps, self-define
Audio input 4 4
Audio input
interface
RCA (Linear Electrical Level,
Resistance：600Ω)
RCA (Linear Electrical Level,
Resistance：600Ω)
Audio output 1 channel, RCA (Linear Electrical
Level, Resistance：600Ω)
1 channel, RCA (Linear Electrical Level,
Resistance：600Ω)
Audio
compression OggVorbis OggVorbis
Audio
compression
rate
16Kbps 16Kbps
Communicatio
n interface
1 RJ45 10M/100M Self-adaptive Ethernet Interface
1 RS232 interface
1 RS485 interface
HDD IDE
interface
2 IDE interface, can support 4 IDE HDD and each HDD can support 2000GB or 2
HDD + IDE CD-RW/DVD-RW
USB interface 1 USB interface, USB1.1, can support USB flash memory, USB HDD, USB
CD-RW/DVD-RW.
VGA interface 1 VGA interface, support resolution：800×600/60Hz, 800×600/75Hz, 1024×
768/60Hz
External alarm
in 4 16
Relay output 2 4