... reconnection. Technicals:ModelNEV-8604Vedio compressionH.264/MPEG-4 optionalVedio input channels4 channelsVedio input portBNC(electronic level:1.0Vp-p,impetence:75 ... NTSC:720*480,352*240 Audio compressionPCM/MP3Audio portBNC,4 input,1 outputProtocolsTCP/IP,HTTP,DHCP,DNS,DDNS,RTP/RTCP ... ,RTSP,PPPoE,FTP,SMTPalarm4 input,4 outputCommunication port1 RJ45 10/100M 1 RS485Power supplyDC ...