1,4 ch port DVR standalone DVR 2,CMS software /3G/ mobile monitoring 3,smar rearch 4, digital zoom Features:Support local storage ... Chinese, English, Thai, Russian, French, Spanish, etc. Specifications:VideoInputBNC×4,(1.0Vp-p,75Ω)CVBS OutputBNC×1,(1.0Vp-p ... Interface1 RJ-45, 10/100Mbps self-adaptive Ethernet interfaceUSB Interface2,USB2.0RS485 Interface1 RS-485 interface (for PTZ control)GeneralPower ...