Features: Remote updating the firmware of speed dome by RS485 bus Can set software ID and address in OSD menu of dome Built-in linear power for anti-surge and anti-lightning protection With optional for alarm (4 inputs and 2 outputs) Smoked cover, Pelco C and Manchester communication Built-in function of protocol converter Supports RS485 communication or Manchester code Preset position storage function, it can save maximum 256 preset 8 cruise tours, every tour can have maximum 32 preset 4 patterns tours, to save the scan route by joystick 1 automatic scan, scope of two limits can be planar scanned gradually Automatic recover to movement before power failure Time start-up function Start movement in the time table have been set North direction setting Power-up action, preset, cruise tour, pattern tour and auto scan Park action, preset, cruise tour, pattern tour and auto scan 360° continuous panning Automatic flip function Privacy masking function and 8 masking zone are available Limit setting, to set the pan or tilt movement in a scope On-screen display temperature, angle, direction and zoom English user menu Specifications: Image sensor: 1/4-inch Sony interline transfer CCD Effective pixels: (H) 752 x (V) 582 Horizontal resolution: 520TVL Minimum illumination: Color: 0.05Lux B/W: 0.0015Lux S/N ratio: more than 50dB (AGC off) Lens: 36x optical zoom, f=3.4mm (wide) to 122.4mm (tele), F1.6 to 4.5 Tilting rotation: -5 to 90° Digital zoom: 16x Optical zoom: 36x Electronic shutter speed: 1/50 to 1/10,000 seconds Internal synchronization Video signal output terminal: 1.0Vp-p/75Ω Auto white balance Backlight compensation: on/off Automatically identify Peamrain protocol or Pelco D/P protocol Automatically identify Sanyo, Sony, Hitachi, Samsung and Honey well series camera modules