... ,10KΩ)Ouput1CH, BNC(linear voltage,600Ω)Voice Communicationindependent CH for 2 way voice communication(mini JACK)DISPLAYResolutionD1 704×576(PAL) 704 ... port, 1RS485 port, 1RS422 port, 3 USB2.0 portBackupRemovable HDD, USB DVD/CD writer, NetworkPower supplyAC100-240V 50/60HzUnit weight15KGDimensions(W ... environmentHumidity: 10~95% RH, Temperature: -10°C~55°C 32 channel standalone dvr with new model