Multi telephone
HT 840-0 W

Multi telephone, with integrated buttons for light and door release, a further 6 buttons programmable for call, remote switching, doormatic, call disable, single concierge, emergency call, alarm call etc.
• 8 LED displays, programmable for call display, reassurance LED in case of emergency call, call back request, activated functions such as call disable, doormatic, single concierge etc.
• 3 inputs for connection of storey and alarm calls, emergency call buttons, for actuation of remote switching and signalling functions, for interfacing the integrated LED displays
• 2 control outputs as relay contacts with common reference point, programmable for the functions secondary signal, reassurance lamp, potential-free button function etc.
• 6 basic configurations can be selected without other auxiliary equipment
• Individual configuration with the aid of system controller SCO 740-…
• Replacement for in-house telephones HT 641-… to HT 643-… and HT 740-…