... KeyBoard interface Key Features1.8/16 channels Audio&Video In2.2 Channels Audio& Video Out3.1 Channel Audio In(For two-way ... TCP/IP(ARP, IP, TCP, PPP, PPPoE, DHCP, SNMP, etc.);15.Video Compression: H.264;16.Support Web Server, suport IE access ... :Network DVR support administrator/ operator two permissions level 8CH Digital Video Recorder H.264 Compression Realtime Recording