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How to Install a Digital Doorbell Adapter (DDA) for SkyBell Doorbell Cameras
A Digital Doorbell Adapter (DDA) is required for all digital chimes to function properly with the SkyBell Doorbell Camera. The adapter regulates power going to the digital speaker and ensures reliable operation of both the chime and the doorbell camera.
Pre-Installation Checklist
- Compatible digital chime (check compatibility here)
- Sufficient transformer power source
- Access to the chime unit
- SkyBell Doorbell Camera (models ADC-VDB101/102/105/106/105x/106x)
- One DDA (SKU: ADC-VACC-DB-A) ordered from the Alarm.com Partner Portal
Note: When installing two SkyBell Doorbell Cameras on one chime, two DDAs must be installed.
How to Identify Your Chime Type
Digital Chimes
- Play melodies or tones through a speaker
- Usually have volume or tone dials
- Require a DDA and configuration as a digital chime in Alarm.com
Mechanical Chimes
- Contain metal bars and a striker pin
- Work without a DDA
SkyBell Doorbell Cameras are compatible with both digital and mechanical chimes but are not compatible with intercoms, wireless chimes, or tube chimes.
Install the Digital Doorbell Adapter
Wiring Instructions
- Remove the chime cover.
- Disconnect wires from the Front and Trans terminals.
- If present, remove any diodes in the circuit.
- Insert the wires into the white connectors of the DDA (polarity does not matter).
- Connect DDA wires to the Front and Trans terminals.
- Reattach the chime cover.
Alternative Wiring (some DDA models)
- J1 → Front terminal on digital chime
- J2 → Transformer wire
- J3 → Trans terminal on digital chime
- J4 → SkyBell Doorbell Camera wire
Enroll and Configure the SkyBell Doorbell Camera
Enroll the Camera
Once the DDA and SkyBell are installed, sync the camera with the customer’s Alarm.com account. For steps, see the SkyBell Doorbell Camera Installation Guide.
Configure Chime as Digital
Using the Customer Website
- Log into the Customer Website.
- Click Video → Settings.
- Select the SkyBell camera from the Video Device dropdown.
- Click Video Device Info.
- Set Chime Type to Digital and click Save.
Using the Customer App
- Log into the Customer app.
- Tap Doorbell Camera.
- Toggle Digital Door Chime ON.
- Tap Save.
Troubleshooting Common Issues
Symptoms of a Missing or Faulty DDA
- Chime rings continuously until SkyBell is disconnected.
- SkyBell does not power up (chime is pulling power).
- Buzzing or humming sounds due to improper power regulation.
What to Do
- Verify compatibility of the transformer and chime.
- Check DDA wiring connections.
- If problems persist, replace the DDA.
Need More Help?
For assistance, visit our Support Center, explore User Guides, or Contact True Protection for professional help.
FAQs
Do I need a DDA for mechanical chimes?
No, mechanical chimes do not require a DDA.
Can one DDA support two SkyBell cameras?
No. Each camera requires its own DDA.
Why does my chime buzz after installation?
This usually indicates insufficient transformer power or a faulty/miswired DDA.
