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The DOORBIRD 423864634 is a nameplate bell button designed for use with the D21X series video door station. This accessory provides the call-trigger interface on a door station installation, allowing visitors to ring through to the connected intercom system. Finished in RAL6027 light green, this replacement nameplate bell combines functional call activation with a color-matched aesthetic suited to custom or commercial door station deployments. It is installed by security integrators, low-voltage technicians, and experienced facilities maintenance professionals as part of a complete door communication system.
This bell button is intended for use with DOORBIRD D21X series door stations in residential and light commercial intercom installations. It serves as a surface-visible call button component and is appropriate for retrofit or replacement scenarios where the original button requires substitution or where a specific RAL color finish is specified for the installation.
Designed as a direct replacement nameplate bell button for the DOORBIRD D21X series video door station.
Installation should be performed by a qualified low-voltage technician or security systems integrator familiar with intercom and door station wiring. Power down or de-energize the door station unit before removing or installing any accessory components. Follow the door station manufacturer instructions and applicable low-voltage wiring codes for your jurisdiction when making connections.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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