41. Features• Operates on any analogue telephone line• Telephone-controlled electronic lock switch• Exclusive white button backlight – white LEDs• Modularity – up to 54 buttons + keypad• Applicable as a standard telephone and code lock (keypad version)• Flat design – installation no need to cut into mounting surface• Water resistant:• Hermetically sealed buttons• Separate electronics from name plates• Telephone-based programming• Detection of all standard tones• Stable line power feeding• High acoustic quality• Electronic volume and Handsfree control – no need to open cover• Special functions includes automatic dialling of multiple numbers, silentdialling, departure/arrival, day/night mode, second switch delay1.1. Optional Accessories:• Vandal resistant panel• New resistant metal cover for better protection against vandalism.• Flush mounting steel box included in the cover price.• Can be purchased and installed as an option.• Additional (second) switch• With switching and breaking contact (relay).• Time-unlimited switch option.• Camera unit• Can be installed into any basic unit (incl. Vandal Resistant).• High-quality colour CCD.• Wide angle, adjustable direction.• Proximity reader unit – can be installed into the basic unit as an option.• Display module• Can be installed into any basic unit as an option.• Graphic LCD, backlight with automatic brightness regulation.• Up to 1,000 characters including text and graphics.• PC configuration, USB interface.