1. DVR for car video recording, realtime 2. 4-channel Car DVR records 4 cameras 3. The best Car DVR with Network, 500GB HDD 4 channel Car DVR with Network with 500GB HDD, Vehicle DVRName: Network DVR, Car DVR, Vehicle DVR with network.Model: VR850Technical Index:Brief Introduction:VR850 is a new type of 4-CH Network Video Server, which can be widely used in household, office, supermarket, etc.Function:1. Adopt high reliable special SOC scheme , super performance RTOS, truly realize industrial MTBF;2. D1 high clear Network Video Server, it is compitable with CIF format;3. Adopt Optimized MPEG-4 video codec, easy to realize high clear video transmission through low bandwidth;4. High clear audio output through adopt ADPCM compresssion codec;5. Advanced network transmission server technic , realize multi-users visit;6. Multi-users management support posswords;7. Support local real-time video surveillance output;8. Support PAL/NTSC composite video input;9. Built-in web NV ,it fully support IE monitoring ,configuration and updating;10.Support IEE802.00b/g wireless network (one wireless channel);11.Support remote safety upgrade;12.Network transmission mode : ISDN, ADSL, LAN, WAN;13.Dynamic IP: support internet connection assigned with dynamic IP address;14.Real-time intercom transmission;15.Automatic video frame adjustment according to the bandwidth;16.Bandwidth optional:16Kbps-2Mbps,frame rate optional:1-25fps (1-30fps);17.Video lost,motion detect,and event trigger ect alarm functions(area and sensibility can be setup);18.Support RS-232 AND RS-485 transfer,support pan/tilt/domeControl (PELOC-P/PELOC-D),dome camera or vidicon etc;19.Collocation and data colloction;20.Support video image shield and snap;21.Auto recovery function,auto connection after network break off;22.Adapt network encryption ,ensure network video safety.Parameters

Video Input	1/4CH PAL/NTSC composite BNC(1.0VP-P, 75ohm)
Video Compression	MPEG4
Video Resolution	PAL:352*288(CIF),720*576(Display) NTSC:352*240(CIF),720*480(Display)
Video Parameter	brightness,contrast,chroma,saturation,image quality can be adjusted
Stream Type	single video stream or composite stream
Frame Rate	PAL:1-25fps. NTSC:1-30fps
Video Bit Rate	32kbps-3mbps
Video Output	CH PAL/NTSC composite BNC(1.0VP-P,75ohm), real-time monitoring
Audio Input	RCA connector,1CH line/MIC,input impedance 1Kohm,single track plug
Audio Compression	ADPCM
Audio Output	RCAinterface,single track plug
Intercom	1CH input, MIC interface
Network Interface	One Ethernet 10/100Mbase-TX with indicator, RS485 interface,RS232 interface; Support PELCO-P/PELCOD standard shaft fixing protocol,high dome camera protocol; Support IEEE802.11b/g wireless network.
Alarm Input	4 switch CH input, setup usual switch on/off
Alarm Output	4 switch CH output,120VAC/1A 24VDC/1A
Input Voltage	DC12
Maximum Power	Less than 6W
Work Temp	-10oC~ +50oC
Work Humdity	10~85%
Size	180(L)x50(H)x115(W)mm

Packing Accessory:one VR850; one DC 12V plug; one AV cable;Package:Product Spec: L: 205mm; W: 125mm; T: 50mm; G.W.: about 2000gPackaging: Box Spec: 480*300*375(mm)

4 channel Car DVR with Network with 500GB HDD, Vehicle DVR