Operating system: Linux Image sensor: 1/3-inch Sony CCD 420/480/520 TVL optional Video compression: H.264/MJPEG Resolution: D1 720 x 576, half D1 720 x 288, and CIF 320 x 288 pixels Frame rate: PAL: 1 to 25fps NTSC: 30fps Audio compression: G.726 Supported protocols: TCP, UDP, IP, HTTP, FTP, SMTP, DHCP, DNS, ARP, and ICMP POE: yes SD memory: yes USB interface: yes WDR: yes Alarm: 1 channel input/output Client software: supports multi-screen software and CMS Horizontal rotation range: 0 to 355° Vertical rotation range: 0 to 90° Rotation speed: Horizontal: 0.45°/s Vertical: 15°/s Lens: 4/6/8mm lens optional Power supply: 12V DC, 1A Power consumption: <3W Operating temperature: -10 to +55°C Humidity: 10 to 90%