Max support 48 video + 48 audio input, Support matrix TV out, Real-time monitoring, plan recording, alarm linkage recording, alarm send email, user management, E-Map, PTZ control, multi-playback, Record file clip, write CD, controlling network respectively and so on;The network client has powerful function of interconnection. It can link up the network with PSTN, ISDN, ADSL, DDN, LAN, Internet, etc.Network function is stronger,support network listen,IE browse,remote chat,remote setup,remote playback,and IP address group management.