Configure a Video Intercom as a 1-Door AC
Configure a Video Intercom as a 1-door access controller
Before you begin
Follow the install guide to set up your hardware.
Follow all the requirements in Get Started with Verkada Intercom.
You do not need a separate door license when configuring the intercom as a 1-door controller. It is included with the intercom license.
Hardware setup
TS12
Verkada reader
The TS12 intercom is rated to power Verkada readers at 12V and 250mA via the V+ and GND terminals on the terminal block located on the rear of the device. Use the diagram below to wire a Verkada reader to the terminal block.We recommend connecting the drain wire to the earth ground at the reader side.Avoid using 12V power to power other peripheral devices, as it has latch-off current limiting.
Inputs
The TS12 has 2 general-purpose dry inputs that can act as a Call Trigger, DPI, or REX. These can be configured in Verkada Command in your intercom's settings page in the I/O section.
Input connections
For each input, you connect one wire to the IN pin and the other wire to the GND pin. You can connect any device with a dry relay output to these ports. All associated events are logged in Command.
Output
The TS12 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.
TD52
Verkada reader
The Verkada TD52 Video Intercom is rated to power Verkada readers at 12V and 250mA via the (+) and (–) connection.
We recommend connecting the drain wire to the earth ground at the reader side.
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.
Command setup
In Verkada Command, go to All Products > Devices.
Select an intercom to configure.
Under Settings > Door click Add a door.
Click Select for Directly to the Intercom.
Select the building and floor and click Apply.
See Assign a User Access to a Door to grant users access to the door.
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