... /DVR-RW/Network downloadAlarm Input/Output8 Channel/1 ChannelNetworkNetwork FunctionsTCP/IP, UDP, DHCP, DNS, IP Filter, PPPOE, DDNS, FTP, Email, Alarm Server, ARSPRemote OperationMonitor, PTZ ... control, 1 for backuplnterfacePTZ controlRS485EnvironmentDimension2U, 510mm×490mm×180mm(W×D×H)Weight8.8KG(without HDD) security system h.264 24ch stand-alone network recording DVR