Colour video entry panel; thermoplastic body finished in Greyhound Grey and décor panel in Aluminium Circuit board for Xip, microphone and loudspeaker. NTSC/PAL video camera, resolution 680x512 with built-in microprocessor for digital signal processing, horizontal angle of aperture 82° with digitally-controlled zoom. Caller illumination using 4 high-efficiency LEDs Protection rating IP 54 Dimensions (WxHxD): 99x254x25 mm Adjustment of microphone/loudspeaker volume and door lock release time. Simple connection using pre-wired flat cables (supplied as standard) and mini USB connector for programming with software tool. DIP-switches for adjustment of the line impedance. Local command for door lock, inputs for door lock release buttons, door status signalling devices, output connector for activation of external cameras. Blue LEDs (8) for backlighting of keys with name label. LEDs for visual control of the status of the system: red "call connected"" LED, green "door open"" LED, yellow "call in progress"" LED, blue "system busy"" LED.