The Verkada TD52 Video Intercom provides a Power over Ethernet (POE) port to enable communication with your Verkada Command dashboard and 3 input/output (I/O) ports.
The Verkada TD53 and TD63 video intercoms include a Power over Ethernet (POE) port, 3 general purpose inputs, 2 general purpose outputs, and 1 RS485 output.
Intercoms require a (PoE/PoE+)-enabled switch port.
Power: 11.5W (IEEE 802.3af PoE)
Extended Temperature Range: 25.5W (IEEE 802.3at PoE)
Wire the TD53/TD63
The back of the intercom has an I/O cover secured by 4 T10 security screws.
Use the included Torx screwdriver to loosen these 4 screws and remove the cable door from the rear of the unit.
Remove the tabs from the cable grommets.
Thread the cables through their corresponding grommets and use the supplied RJ45 cap to thread the ethernet cable through.
Wire the I/O ports
Input Device Options | Output Device Options |
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The Terminal block has two layers (outputs on the front, inputs on the back):
Wire an input
Configure the input in Verkada Command: Intercom Settings > I/O. Note the number of the input you configured.
Thread the input device leads through the cable grommet in the I/O cover.
Remove the terminal block from the device and wire your input device into the corresponding input from step 1.
Press the orange button to open the port and release to close.
Note: Inputs 1-3 share common ground directly to the right of IN 1.
Wire an output
Configure the output in Verkada Command: Intercom Settings > I/O. Note the number of the output you configured.
Thread the output device leads through the cable grommet in the I/O cover.
Remove the terminal block from the device and wire your output device into the corresponding output from step 1.
Note: Use a normally closed (NC) or normally open (NO) wiring configuration based on your output device.
Finish up
Seat the cable grommets into the cable door for sealing
Plug the ethernet cable/terminal block into the device.
Refasten the cable door onto the device.
Mount the device on the mount plate (in either subflush or surface mounted configuration) using the two hooks on the mount plate.
Swing the device down against the mount plate and fasten it with the included T10 security screws using the supplied Torx screwdriver.
Wire the TD52
The TD52 requires a (PoE/PoE+)-enabled switch port.
Power: 11.5W (IEEE 802.3af PoE)
Extended Temperature Range: 25.5W (IEEE 802.3at PoE)
The back of the TD52 has an I/O cover is secured by 4 screws that hold the I/O cover in place.
Using a #2 Phillips head, remove these 4 screws.
Plug the the Ethernet cable to provide power to the Intercom.
Remove the rubber grommets (circular components) using the included grommet punch. The Ethernet chord goes through the grommet to create a water tight seal.
The intercom should power on and the status LEDs display on the face of the Intercom. Read about what each LED status indicates.
Wire the I/O port
The TD52 provides space in the I/O port for 2 inputs and 1 output.
Input device options | Output device options |
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Example: I/O ports when the cover is removed
Each I/O port corresponds to the following pins from left to right:
To simplify the I/O port wiring, remove the I/O terminal. You can use a Torx security screwdriver provided in the box or any tool that allows you to lever the terminal away from the device.
Wire an input device
Looking at the I/O terminal, the 3 ports closest to the right are for inputs:
IN2 (Pin 10)
IN1 (Pin 9)
GND (Pin 8)
Choose which port(s) the input(s) to wired into.
Press and hold the orange push button to insert the second wire of input device into ground (Pin 8/GND).
You can use the same ground port when 2 inputs are installed.
The example shown is an Intercom I/O terminal with 2 input devices attached, both of them using the same ground port.
Example wiring scenarios
REX / Call Trigger
Door Contact / DPI
When wiring an Intercom as an access controller, you must wire the REX into Input 2 (IN2) and DPI into Input 1 (IN1).
Power your input device using an external power supply
To wire using an external power supply, take the positive (+) and negative (–) wires from the input device and then wire it into the power source.
Example: How to wire a powered REX/call trigger into an external power supply
Wire an output device
Looking at the I/O board, the 3 ports closest to the left:
NO (Pin 1)
COM (Pin 2)
NC (Pin 3)
Using the orange push button on the terminal block, insert the negative wire (–) into COM (Pin 2). This wire will be inserted into the ground (GND) or negative (–) on your output device.
Determine what relay state the output device requires to be triggered, then use the orange push button to insert the second wire into Normally Open (NO) or Normally Closed (NC).
If the output device expects NO, then put the '+' wire into NO/Pin 1.
If the output device expects NC, then put the '+' wire into NC/Pin 2.
This wire will be inserted into the input (IN) or positive (+) on your output device.
Select the appropriate output setting for the output in the Verkada Command dashboard.
The TD52 uses a dry relay, which means that it cannot power an output device. All output devices that require power need to use an external power controller or power supply.
Wire a reader
Example wiring scenarios
Door unlock
The door unlock allows for the output relay to trigger when an unlock is sent from the receiver. In both wiring scenarios, the lock is attached to an access power controller.
Using a fail secure lock
Using a fail safe lock
Need more help? Contact Verkada Support.