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Configure the TD52 as a 1-Door AC
Configure the TD52 as a 1-Door AC

Learn how to configure the Verkada TD52 Video Intercom as a 1-door access controller

Updated yesterday

Before you begin

Set up your hardware before you begin the Verkada Command setup.

Verkada reader

The Verkada TD52 Video Intercom is rated to power Verkada readers at 12V and 250mA via the (+) and () connection.

Recommendation. We recommend to connect the drain wire to earth ground at the reader side.

Note: Avoid using 12V power to power other peripheral devices, as it has latch-off current limiting.

Inputs

The TD52 has 2 general-purpose dry inputs. The default input state (Normally Closed [NC] or Normally Open [NO]) for each can be configured in Verkada Command.

Connections

For each input, you should connect 1 wire to the IN pin, and the other to the GND pin. You can connect any device with a dry relay output to these ports, such as door position indicator (DPI), request to exit (REX) sensor, intercom, or access control output. All associated events are logged in Command. Learn more about how to wire the input device.

Output

The TD52 has 1 dry form C relay output that you can configure as an access controller (AC) by connecting an access power controller to the output terminal, as detailed below.

Connections

You can also use the output relay as a general-purpose output.

  • For fail safe locks, you should connect + to NC to be locked, by default.

  • For fail secure locks, you should connect + to NO to be locked, by default.

Learn more about how to wire an output device.

Set up your door in Command

Before you begin, ensure that you've followed all the requirements in Get Started with Verkada Intercom.

Add a door to the TD52

  1. In Verkada Command, go to All Products > Devices.

  2. At the top, click the Devices tab.

  3. Find the intercom you are adding a door to and select it.

  4. Click Settings > Door.

  5. Click Add a door.

  6. Select the option for Directly to the Intercom.

Unlock settings

Setting

Description

Unlock time

Determines how long the door remains unlocked before re-locking. The default is 10 seconds (configurable 1 to 60 seconds). This duration affects both card scan unlocks and keypad pin unlocks.

NFC Card Unlock

Toggle on if NFC Card Unlock is needed.

Remote Unlock

Toggle on to allow eligible Verkada Pass app users to unlock this door via the Pass app.

Bluetooth settings

Setting

Description

Bluetooth Unlock

Toggle on to allow eligible Verkada Pass app users to unlock this door via Bluetooth.

Unlock Proximity

Sets the unlock proximity:

  • Immediate—Phone needs to touch the reader.

  • Near—The phone needs to be around 2–3 ft (.6–0.9mm) from the reader

  • Far—The phone needs to be around 7–8 ft (2.1–2.4mm) from the reader.

  • Custom—Set your own Received Signal Strength Indicator (RSSI) value.

Remote Unlock

Toggle on to allow eligible Verkada Pass app users to unlock this door via the Pass app.

Bluetooth Cooldown

Set the interval between Bluetooth door unlocks.

Beep on Bluetooth Unlock

Eligible Verkada reader will beep when unlocked via Bluetooth.

I/O Settings (DPI)

Setting

Description

DPI

Toggle on if a DPI button is installed. You can configure using Input 1 of the intercom: On the dropdown, select DPI (Door Position Indicator).

Ignore DPI relock

The door does not relock when the DPI sends an opened signal.

Monitor DHO

Triggers an event when a door is held open (DHO).

DHO Threshold

The time it takes to trigger a DHO event.

I/O Settings (REX)

Setting

Description

REX

Toggle on if a REX button is installed. You can configure using Input 2 of the intercom: On the dropdown, select REX (Request to Exit).

REX Unlocks Door

When the REX is triggered, unlock the door.

Duration of REX Unlock

How long to keep the door unlocked when REX is unlocked.

Monitor DFO

Toggle on if the door should alert is forced open (DFO).

How long to delay DFO events after a valid door open

Set how long the door should be held open before an alert is sent.

Assign user access to an intercom door

After you add a door to an intercom in Command, you can assign access levels in the access control menu, like any other door.

Learn more

TD52 Video Intercom (install guide)


Need more help? Contact Verkada Support

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