D57 Series HD video conferencing camera Key Features: True FULLHD HD images with 1 / 2.8 inches, high-quality HDCMOS 2 million effective pixel sensor, enabling high-quality 1920x1080 ultra-high resolution images. Output frame rate of up to 60/50 frames / sec. Ensuring a high-definition, while focusing on meeting the needs of the screen fluency. Low-noise high SNR SNR video camera directly affect the high-definition videoconferencing terminal image compression coding efficiency. 20x optical zoom is fast, accurate and stable auto focus lens, 20x optical zoom can be achieved. Wide range, high speed, low noise pan / tilt operation using precision stepper motor drive, the operation is very quiet and smooth, can quickly move to a specific location, and a wide range of shooting. Full HD multi-format video output while providing HD-SDI, YPbPr analog component interface, HDMI interface. HD-SDI, YPBPR, HDMI output HD images, support 1080P60 / 50,1080P30 / 25,1080I60 / 50,720P60 / 50 and other HD video formats. RS-232C Remote Control (VISCA protocol) using the RS-232C (VISCA protocol) interface, all settings on the camera and pan / tilt / zoom operation for remote control of high-speed communications. Cascade via RS-232 interface to connect seven cameras. Multiple address settings menu to set the address, the address is automatically assigned when the cascade. 9 position preset position can be pre-set nine positions, including pan, tilt, zoom preset, even when the camera shut power down, the preset data can be saved. Multi-function remote control is equipped with a convenient remote control operation, in addition to the basic settings, as well as pan, tilt, zoom control, etc., you can also set the parameters of the camera by remote control manual. Supports an optional camera flip camera flip functional structure, and set the OSD menu, using the remote control to change the installation. OSD menu feature-rich OSD menu, available on the remote control to select the control or serial OSD menu. Applications conferencing, distance learning, education and broadcasting Technical Specifications Model D57-20X-SDI Image Sensor 1 / 2.8-inch high-quality HD CMOS sensor pixels 2 million pixel video signal 1080P60 / 50,1080P30 / 25,1080I50 / 60,720P60 / 50 lens zoom 20x optical zoom, f = 4.7 ~ 94mm viewing angle 2.9 ° (distal) - 54.1 ° (proximal) Minimum illumination 0.005LUX White Balance Auto / Manual Focus Auto / Manual Iris Auto / Manual Electronic Shutter / manual backlight compensation on / off signal to noise ratio> 50dB input / output interface definition interface YPBPR, HDMI, HD-SDI, DVI control port RS232 (8-pin mini DIN) (control VISCA) Baud rate; 9600bps general parameters and mechanical properties Pan: ± 170 degrees; pitching rotation: -30 degrees to + 90 degrees horizontal control speed: 1.7-100 ° / sec; pitch control speed: 1.7-90 ° / sec Preset Speed ??:: 320 ° / sec Preset spaces: the user can preset 32-bit color silver input voltage DC12V ± 1V power 12W (maximum) Operating temperature -10 ℃ ~ + 50 ℃ Dimensions (width X height X depth) 132x150x154mm Weight (approx.) 2.3KG indoor environment (Support flip)