... most 32 channel encode 2: H264 encoder standard , compatible D1,Half-D1 and CIF ModelNVS800Video Input(encode platform)32channel composite video, ... Bit rate16Kbit/S??4Mbit/SVideo Output(decode platform )8 channel composite video, PAL or NTSC BNC interface ,1.0Vp-p, ... impedance 75OhmsAudio Input32 channel ,RCA interface, liner input, Impedance:1KOhmsAudio ...