... Filter 7 Two-way audio 8 PoE is Optional Specification Camera Image Sensor 1/3" Progressive Scan CMOS Min. Illumination 0 ... through client software or web browser Network Protocol Protocols TCP/IP, HTTP, FTP, DHCP, DNS, DDNS, RTP/RTSP, PPPoE, SMTP, ... -485 interface Intelligent Alarm Motion Detection, Video Loss, Network Disconnect, IP conflict, Storage exception Alarm Input 2 channel Alarm Output 2 ...