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Surface-mounting external unit 20 mm with 8 bells in two rows

Reference code
Technical datasheets
Technical manuals
Certificaten CE-Marking


This compact surface-mounting unit in aluminium has a surface-mounting height of only 16 mm 20 mm. 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. With its double row of bells, this surface-mounting unit is extremely well-suited for large residential complexes. This external unit has 8 bells in two rows.

Specification description

Surface-mounting external unit 20 mm with 8 bells in two rows.

  • 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)
  • Dimensions name field: 15 x 39 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) = 0.4 mA, I(P) = 16 mA in standby
  • Maximum input current: I(Pmax) = 65 mA
  • Finishing colour: grey
  • Marking: CE
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