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  4. Getting Started

Wiring a Door Position Sensor to the UniFi Access Control Hub

This article covers connecting door position sensors (DPS) to UniFi Access Control Hubs to monitor door status. If a door remains unlocked, the system triggers alerts for prolonged openings or unauthorized access, ensuring real-time updates and enhanced security. If you've already wired your terminals and are looking for configuration instructions within UniFi Access, click here. For more general information on a hub's input/output terminals, click here.

Connecting Door Position Sensors

  • A DPS usually connects to a hub's input and operates as a Normally Closed (NC) circuit.
  • The hub does not power the DPS; it only detects its status.

Door Hub is used as an example here. 

Connect_to_DPS.png

Notes:

Monitoring Door Status

After wiring a DPS to the hub and configuring its settings in the UniFi Access application, you'll receive clear, color-coded door status updates in the Access interface. This allows for quick responses to security events.

Example: If the DPS detects an unauthorized door opening, the hub immediately triggers an audible alert if a siren is wired, and the interface displays "Unauthorized Opening."

DPS.png

Lock Status DPS Status Door Status Displayed on User Interface
Unlocked Closed, or no DPS connected Unlocked
Open Open
Locked Closed, or no DPS connected Locked
Open Unauthorized Opening

FAQs

Do UniFi Access Locks have a built-in DPS?

Yes. Magnetic Lock (UA-Lock-Magnetic) comes with a built-in DPS, making it cost-efficient and eliminating the need for an additional sensor. Learn more about UniFi Access Locks 

What are the common DPS styles? 

DPS comes in different styles, each with unique benefits. Here are the most common types.

Recessed Magnetic Sensor

  • Installation Location: Switch on the door's hinge side, magnet on the swing side.
  • Pros: Hidden to prevent tampering; works for most doors.
  • Cons: Can misalign, triggering false alarms from wind or vibration.

Recessed.png

Mechanical Plunger Sensor

It has a button that is pressed when the door is closed, completing the circuit. When the door opens, the button releases, signaling an open door.

  • Installation Location: Installed on the door's hinge side.
  • Pros: Durable and avoids alignment issues due to its one-sided design.
  • Cons: Can be bypassed with a card unless protected by the door frame. 

Mechanical_Plunger_Sensor.png

Surface Mounted Sensor

  • Installation Location: Switch installed on the door frame, magnet on the swing side.
  • Pros: Easy to install, weather-resistant, fits most doors.
  • Cons: Exposed and more vulnerable to tampering. 

Surface_Mounted_Sensor.png

Overhead Style Sensor

  • Installation Location: Switch installed on the floor indoors, magnet at the bottom of the garage door panel. It can also be installed at the top of the garage door.
  • Pros: Easy to install and ideal for roll-up or overhead doors. 
  • Cons: Can trigger false alarms from wind or dirt buildup. 

Overhead.png

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