Wiring Exit and Entry Request Devices to the UniFi Access Control Hub

This article provides wiring instructions for connecting request-to-exit devices (e.g., push-to-exit buttons) and request-to-enter devices (e.g., doorbell buttons) to UniFi Access Control Hubs, enabling free egress without authentication or visitor entry requests. 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 Motion Sensors for Automatic Door Unlocking

The motion sensor detects movement near the door and signals the hub to automatically unlock it. It is typically connected to the hub's MOTION (or EXIT REQUEST) terminal.

Important: For fire safety, it's recommended to include push-to-exit buttons as a manual override. This ensures that if smoke obstructs the sensor, people can still exit safely.

Door Hub is used as an example here.

Connecting Push-to-Exit Buttons for Free Egress

A push-to-exit button, such as the UniFi Access Button (UA-Button), allows users to quickly unlock doors by interrupting power to magnetic locks or other locking hardware with a simple button press. It is typically connected to the hub's BUTTON (or EXIT REQUEST) terminal.

Important: To meet life safety codes, clear labeling—such as "PRESS TO EXIT" or "PUSH TO EXIT"—at a specific height and distance from the door is important.

Connecting Doorbell Buttons for Entry Requests

A doorbell button and third-party chime wired to the hub provide audible alerts when the button is pressed, notifying authorized personnel of a visitor's presence. The doorbell button is typically connected to the hub's BUTTON (or EXIT REQUEST) terminal.

Connecting Panic Bars for Free Egress and Controlled Entry

A panic bar provides quick emergency exits with a single push and is often required by law in public buildings, hospitals, and industrial sites. To allow free exit while requiring authentication for entry, connect the panic bar to the hub's BUTTON (or EXIT REQUEST) terminal and LOCK - NO POWER (DRY) relay terminal.

Notes:

• See the hub installation guides for details: Door Hub, Door Hub Mini, Access Ultra, Enterprise Access Hub, and Gate Hub.
• To find out the maximum number of request-to-exit and request-to-enter devices supported per hub, click here. 

FAQs