... Linux Operating System.2,system resources: at the same time 16-channel CIF real-time video and network transmission, 1 or 4-channel ... operation interface: graphical operation interface,which supports mouse, panel, remote control.4,video compression: H.264.5,Audio Compression: ADPCM.6 ... switch input.13,Alarm output: 1 switch output.14,PTZ control: RS485.15,hard disk interface: 2 SATA interface.16,Network ...