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. work 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/dome Control (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:1/4CH 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; Sup