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Flush-mounting external unit with 24 bells

Reference code
Technical datasheets
Technical manuals
Certificaten CE-Marking


This ultra-flat flush-mounting unit is finished in 3 mm-thick aluminium and can be easily integrated into a wall or partition. The external unit is equipped with a 5 mm-thick name plate in Plexiglas which is vandal proof. The metal-plated push-button contacts are maintenance-free and durable. This external unit works with 2-wire technology, which means that an existing bell can simply be replaced by a similar external unit. The external unit includes the flush-mounting box. This external unit has 24 bells. From 12 bells, the bell buttons are arranged in two rows and from 24 in three rows.

Specification description

Flush-mounting external unit with 24 bells.

  • Function: • each non-programmed push button can operate the light, light symbol supplied
  • 2 internal units can be linked to each push button bell
  • Acknowledgement tone when pressing the bell button
  • material push buttons: metal with gilded, maintenance-free contacts
  • long-life energy-saving name plate lighting
  • 5 mm thick, indestructible and vandal proof name place in Plexiglass
  • internal memory for the exchange of data between identical external units (EEPROM)
  • Fixing method
    • win:clip principle
  • Dimensions front plate: 296 x 398 x 3 mm (HxWxD)
  • Dimensions flush-mounting box: 247 x 374 x 40 mm (HxWxD)
  • Dimensions name field: 19 x 62 mm (HxW)
  • Microphone: volume and microphone sensitivity can be adjusted manually
  • Wiring technique: 3-wire technology recommended, 2-wire technology possible
  • Extra terminal
    • R-terminal to connect an extended function (e.g. door release)
    • door opener time on R-terminal: 3 s (can be adjusted via service unit)
    • activation time of the door relay (for controlling the memory in internal units): 56 s (can be adjusted via service unit).
    • speech connection during activation of the door relay (can be adjusted via service unit)
    • length of conversation: 56 s (can be adjusted via service unit).
  • Input current at rest: I(a) = 1.2 mA, I(P) = 53 mA in standby
  • Maximum input current: I(Pmax) = 58 mA
  • Thickness of front plate: 3 mm aluminium
  • Finishing colour: grey
  • Marking: CE
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