... 6 Two-way audio 7 IR distance is optional Specification Camera Image Sensor 1/3 " SONY Super HAD CCD Effective Pixels ... Frame Rate 25 fps (704x576), 30fps (704x480) Network Protocols TCP/IP, HTTP, DHCP, DNS, RTP / RTCP, PPPoE (FTP, SMTP, NTP, SNMP ... -485 interface Intelligent Alarm Motion Detection, Video Loss, Network Disconnect, IP conflict, Storage exception Alarm Input 1 channel Alarm Output 1 ...