# Configure a TD52

The [Verkada TD52 Video Intercom](https://www.verkada.com/intercom/td52/) allows organizations to enhance security and answer calls from anywhere with sharp video, clear audio, 4 smart receiver methods, and intuitive management and security tools in [Verkada Command](https://app.gitbook.com/s/NRq5qDDjsYNxwNzF1bcB/get-started-with-verkada-command).

## Add the serial number to Command

{% stepper %}
{% step %}

#### [Add the intercom serial number to Command](https://help.verkada.com/intercom/configuration-and-setup/add-an-intercom-to-your-site).

{% endstep %}

{% step %}

#### Once you add the serial number and activate the intercom, a new tab opens, showing the video feed from the TD52. At the top left of your webpage, a menu displays the setup checklist. **We recommend to follow the** [**setup checklist**](#h_91ccac0f9a).

{% endstep %}
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## Configure setup checklist options

To access all configurable options, at the top right, click **Settings**![](https://3022285914-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FTH6kITd3Fb5UOnnsfQ9r%2Fuploads%2Fgit-blob-e50f5cd47fba7c1862ed7390e0ef30babd7a7519%2Fe7212f58286ec46055a172f55c44372d44709cce.png?alt=media).

### Change device name

{% stepper %}
{% step %}

#### From the setup checklist, click **Change device name** to open the **Settings** page.

{% endstep %}

{% step %}

#### With the **Settings** page open, select the current name to change the default name.

<div align="left" data-with-frame="true"><img src="https://3022285914-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FTH6kITd3Fb5UOnnsfQ9r%2Fuploads%2Fgit-blob-68cf92c8e0c7c694fe4b1f1ecc179d06998504a1%2F58b234e9cc1711d85d39eb0acf9bfb01bb0a6d35.png?alt=media" alt="" width="304"></div>
{% endstep %}
{% endstepper %}

### Pair a door

{% hint style="warning" %}
Paring a door is not compatible with the AX11.
{% endhint %}

{% stepper %}
{% step %}

#### From the setup checklist, click **Pair a door** or on the **Settings** page > sidebar, click **Pairing**.

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{% step %}

#### Click **Add a door**.

<div align="left" data-with-frame="true"><img src="https://3022285914-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FTH6kITd3Fb5UOnnsfQ9r%2Fuploads%2Fgit-blob-47ea305b4189bd8f4dd6d7518f382b7502b6a1b8%2Fb6ff8ac0a820374b21a5060dfe8609bfea87ede7.png?alt=media" alt="" width="801"></div>
{% endstep %}

{% step %}

#### Next to **To Verkada Access Controller**, click **Select**.

<div align="left" data-with-frame="true"><img src="https://3022285914-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FTH6kITd3Fb5UOnnsfQ9r%2Fuploads%2Fgit-blob-ea958c55a61cea6604a67e237aa5ac3f42ae3f81%2F9e82e1573fc4b441b6f34602145429916dbe1edb.png?alt=media" alt="" width="385"></div>

You should see a list of the access-controlled doors in your organization.
{% endstep %}

{% step %}

#### Once you select a door, it appears as a paired door and can then be unlocked from the live page. **To unlock the door through a call**, **receivers are required before using the TD52.**

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{% step %}

#### When the door is paired, you are prompted with information on how a call ends. You can also now see these toggle options:

* **Ends call on door open after intercom unlock**—This is the default and indicates that the call from the intercom will be stopped when the **unlock** button is pressed.
* **Ends call on door open while intercom is dialing**—Indicates that if the door is unlocked and opened while dialing, then the call is ended. For example, if someone watching a desk station live feed unlocks the door before speaking, then any ongoing dialing will be ended.
* **Beep when Unlocked**—Indicates that the intercom will make a noise when the receiver initiates a door unlock.
  {% endstep %}

{% step %}

#### Once a door has been paired, you can skip to setting up the receivers.

a. To add context cameras, skip to [pair camera(s).](#h_62d77ef9f2)\
b. To configure I/O devices, skip to [configure I/Os.](#h_3ba5ee3023)\
c. To configure receivers, skip to [add receivers.](#h_e5da76458a)
{% endstep %}
{% endstepper %}

### Pair camera(s)

{% stepper %}
{% step %}

#### From the setup checklist, click **Pair camera(s)** or on the **Settings** page > sidebar, click **Pairing**.

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{% step %}

#### Click **Add Camera** to see a list of cameras in your organization.

{% endstep %}

{% step %}

#### Select up to 2 additional cameras for context. You can also select other intercoms as a context camera.

{% endstep %}

{% step %}

#### If the paired door already has a context camera, it will appear as the first paired camera.

<div align="left" data-with-frame="true"><img src="https://3022285914-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FTH6kITd3Fb5UOnnsfQ9r%2Fuploads%2Fgit-blob-55ce1a54dd9d1db67280b80dcc482ce363edb7bc%2Fd376b2ba053473424b82233b9110529ea41fcb1b.png?alt=media" alt="" width="430"></div>
{% endstep %}

{% step %}

#### Once additional cameras have been added, they will appear on the **Live** page of the intercom (left side of the video feed).

{% endstep %}
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### Configure I/Os

{% stepper %}
{% step %}

#### From the setup checklist, click **Configure I/Os** or on the **Settings** page > sidebar, click **I/O**.

{% endstep %}

{% step %}

#### In the **I/O** section, select your I/O, as needed:

* There are 2 inputs and 1 for output. If there is anything wired into the I/O port on the TD52, this is where the exact I/O function is selected. Learn how to [wire a TD52](https://help.verkada.com/intercom/configuration-and-setup/wire-a-video-intercom).
* Learn more about the [I/O types](#h_9e79898d4f).
  {% endstep %}

{% step %}

#### Enable your input device: Select the input number that corresponds to the port used in the I/O port, then select the correct input device type. For example, if a door position indicator (DPI) is wired into input 2 on the I/O board, then select **input 2** > **DPI**.

{% endstep %}

{% step %}

#### Enable your output device: Select the correct device that corresponds to what is physically attached to the I/O port.

{% endstep %}
{% endstepper %}

#### Add receivers

For details about how to add receivers, add/edit schedules, and add/edit call lists, see [Add and Configure Receivers in Intercom](https://help.verkada.com/intercom/configuration-and-setup/add-and-configure-receivers-in-intercom).

Once a receiver is added, then the intercom is ready to begin [making calls](https://app.intercom.com/a/apps/q5re5q6g/articles/articles/6932927/show).

## Types of I/Os

The intercom allows for various types of [input](#h_e59c7383e2) and [output](#h_25afd718e0) devices to be attached and interface with it. The I/O port allows for 2 inputs and 1 output to be attached to it.

#### Input

The input is a set of 2 dry contacts that watch for Normally Open (NO) or Normally Closed (NC) from the device attached to the I/Os.

|                                   |                                                                                                                                                                                                           |
| --------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Call Trigger**                  | Any input that sends a close signal to the intercom can be used as a call trigger. For example, if a PIR motion sensor was used, then the intercom would make a call when the motion sensor is triggered. |
| **Door Position Indicator (DPI)** | Any contact that sends an open or close signal. Typically DPIs are contacts that are contained within or on a door, and are used to determine if the door is physically open or closed.                   |
| **Request to Exit (REX)**         | When a close signal is made, then the intercom unlocks the door that it’s paired to. For example, a REX could be a standard button or a PIR motion sensor.                                                |

#### Output

The output is a dry relay with ports for NO, COM, and, NC. The output can be used to trigger a door unlock.

|                      |                                                                                                                                                                                                                                                                                               |
| -------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Door Unlock**      | Upon door unlock, the dry relay triggers and sends a close or open signal to the device attached to it. If the door unlock is to be used to trigger the lock or unlock of an electrified lock, then proper external power supplied or power controllers are **required** to operate the lock. |
| **Chime**            | Intercom output can be used to set a chime.                                                                                                                                                                                                                                                   |
| **Call in progress** | Intercom can be used to trigger call in progress.                                                                                                                                                                                                                                             |

### Other configurable settings

#### General

**General** is a configurable set of options that *affect* the intercom and information *about* the intercom.

|                                       |                                                                                                                                                                                                                                     |
| ------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Continuous Audio**                  | If enabled, the intercom continues to record and stream audio when not in a phone call. For example, the intercom can be used to listen to what is happening around it, even when no call is in progress. (This audio is recorded.) |
| **Tamper Events**                     | High-to-low sensitivity, these events show in the **Events** page (left sidebar) and the **Events** tab (at the top).                                                                                                               |
| **Cloud Backup**                      | Use to continually save footage from the intercom camera.                                                                                                                                                                           |
| **People History and Face Detection** | Enable **People Detection** to search for individuals who are visible on the intercom. Enable **Face Detection** to allow for more granular information, such as location people of interest (POI).                                 |
| **Time Zone**                         | Time zone is based on the address assigned to the intercom. For example, if the intercom address is Toronto, Ontario, Canada, then the time zone is shown as **EST/EDT**.                                                           |
| **Device Status**                     | Current status displays as online or offline. If offline, the amount of time is also displayed.                                                                                                                                     |
| **Serial Number**                     | Located on the I/O cover and side of the box of the intercom. See also [Add a TD52 to Command](https://help.verkada.com/intercom/configuration-and-setup/add-an-intercom-to-your-site) to learn more about serial number locations. |
| **Model**                             | Model name and number.                                                                                                                                                                                                              |
| **Date Added**                        | Time and date the intercom was added to Command.                                                                                                                                                                                    |
| **Firmware**                          | Displays if the intercom is up to or out of date.                                                                                                                                                                                   |
| **Local IP Address**                  | Dynamic Host Configuration Protocol (DHCP)-assigned IP address. The IP address and the subnet mask displays.                                                                                                                        |
| **MAC Address**                       | Located on the I/O cover of the intercom.                                                                                                                                                                                           |

#### Call

**Call** is for calls made from the intercom to the receiver. To access the Call setting, on the left sidebar, select **Call**.

|                                       |                                                                                                                                                                                                                       |
| ------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Call Volume**                       | Changes the volume level of the audio that comes of the intercom device.                                                                                                                                              |
| **Press Intercom button to End Call** | When the **Intercom** button is pressed, a call can be ended. This is toggled on, by default.                                                                                                                         |
| **Maximum Call Duration**             | Once the call reaches 5 minutes, calls are ended.                                                                                                                                                                     |
| **Dial Key to Accept Call**           | When receivers are phone numbers, a phone call from the intercom to the receiver is made. Two-way talk does not start until the call is accepted. The dial key starts the call. It is a hashtag (#) or asterisk (\*). |
| **Dial key to unlock door**           | Anytime during a call the door paired to the intercom can be unlocked. The key to unlock the door is any number on the dial pad.                                                                                      |
| **Intercom phone number**             | Phone number that is used to call the receiver. If calls should be received even when the receiver is silenced, then consider adding this phone number as an emergency contact.                                       |

## Troubleshooting

At the end of the **Settings** page, you can see the **Troubleshooting** section. Use this information to confirm that the video and audio on the TD52 is streaming correctly.

***

**Need more help?** Contact [Verkada Support](https://www.verkada.com/contact/).
