--- title: Creating and Managing Mercury Doors description: mercury,doors,create door,door details,reassign,pulse unlock --- [Skip to content](https://help.alocity.com/knowledge/mercury-doors#main-content) English Show submenu for translations [SUBMIT A TICKET HERE](https://help.alocity.com/knowledge/kb-tickets/new?hsLang=en) [![Alocity](https://help.alocity.com/hs-fs/hubfs/alocity-logo%20Full.png?width=181&height=48&name=alocity-logo%20Full.png)](https://www.alocity.com/) Open main navigation Close main navigation - English Show submenu for translations - [SUBMIT A TICKET HERE](https://help.alocity.com/knowledge/kb-tickets/new) - [Contact Support Now](mailto:support@alocity.com) [Contact Support Now](mailto:support@alocity.com) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [Alocity Help Center (Knowledge Base)](https://help.alocity.com/knowledge?hsLang=en) 2. [Mercury Installation, Setup And Configuration Guide](https://help.alocity.com/knowledge/mercury-installation-setup-and-configuration-guide?hsLang=en) 3. [Setup and Configuration](https://help.alocity.com/knowledge/mercury-installation-setup-and-configuration-guide?hsLang=en#setup-and-configuration) # Creating and Managing Mercury Doors ## How to Create a Mercury Door, Change Its Wiring and Test It A Mercury door brings together a reader port, a lock relay, a door contact and a REX input from a controller or sub-panel. This article covers creating a Mercury door and the tabs on its details page. > **Note:** Configure the controller's ports first ([Configuring Readers](https://help.alocity.com/knowledge/mercury-configuring-readers?hsLang=en), [Configuring Inputs](https://help.alocity.com/knowledge/mercury-configuring-inputs?hsLang=en), [Configuring Relay Outputs and Locks](https://help.alocity.com/knowledge/mercury-configuring-relay-outputs-and-locks?hsLang=en)), or assign them while creating the door. --- ### 1. Create a Door Open the **Access Control** module, select **Doors** and click **Create Door**. The wizard has five steps. #### Step 1: Name & Site - **Door name**: users see this name in events, mobile prompts and access groups. - **Site**, **Primary Zone** (required) and **Secondary Zone** (optional). - **Door type**: **Single** (entry reader only) or **Double** (entry and exit readers). *![Screenshot 2026-11-05 130812](https://help.alocity.com/hs-fs/hubfs/Screenshot%202026-11-05%20130812.png?width=670&height=296&name=Screenshot%202026-11-05%20130812.png)* #### Step 2: Controller Choose a controller at the site. Each card shows the model, the number of boards and whether it's **Online**. Only online controllers can be selected. ![Screenshot 2026-11-05 130829](https://help.alocity.com/hs-fs/hubfs/Screenshot%202026-11-05%20130829.png?width=670&height=241&name=Screenshot%202026-11-05%20130829.png) #### Step 3: Hardware Choose the board and port for each function. Ports already in use are greyed out with the name of what's using them. | Function | Required? | What to choose | | --- | --- | --- | | **Entry reader** | Optional | A board with reader ports, then the port (P1, P2) | | **Lock relay** | Required | A board and output (for example O1–O4 on the controller, or a relay on an MR16OUT). Then the **Unlock time**: 5 s, 10 s, 15 s or Custom. | | **Door contact (DPS)** | Required | An input (I1–I8). The wizard suggests one. | | **Request to exit (REX)** | Optional | An input (I1–I8). The wizard suggests one. | *![Screenshot 2026-11-05 130850](https://help.alocity.com/hs-fs/hubfs/Screenshot%202026-11-05%20130850.png?width=670&height=751&name=Screenshot%202026-11-05%20130850.png)* #### Step 4: Reader setup 1. **What's connected?** **Alocity Device** (choose **Intercom** or **Reader F3D100**) or **Other device** (any third-party reader). 2. **How does it talk to the panel?** Wiegand 26, Wiegand 34 or OSDP Secure. For OSDP, set the **Bus address** and **Baud rate**. > **Note:** An OSDP Secure reader must be linked after the door is created, so the panel and reader can agree an encryption key. In OSDP: the reader port is shaded gold with a lock icon. This applies to third-party readers and to Alocity devices on a Mercury board. #### Step 5: Review Check each section and use **Edit** to change anything. The **Ready to create** checklist confirms the lock relay, door contact and entry reader are set. Click **Create Door**. #### After you create the door 1. **Link the reader** (OSDP Secure only): go to **Hardware › ACUs**, open the controller, click the gold reader port on the **Topology** tab, select its **Security** tab and click **Link reader**. See [Configuring Readers](https://help.alocity.com/knowledge/mercury-configuring-readers?hsLang=en). 2. **Test the door**: swipe a credential and open the door to check the lock, contact and REX. See section 4 below. --- ### 2. The Doors List The **Doors** list shows each door's **Type** (Embedded or Mercury), **Hardware** (controller and port), **Site**, door state (for example, Closed or Forced Entry) and lock state. --- ### 3. Mercury Door Details Click a door's name to open it. The header shows **Keep Door Unlocked** and **Pulse Unlock**. > **IMPORTANT:** Keep Door Unlocked leaves the door unlocked until you turn it off. Use a door unlock schedule for planned free-access hours instead. | Tab | What it shows | | --- | --- | | **Hardware** | The door's setup (site, controller, sub-panel, entry reader, lock, door contact, REX and access mode), a wiring map, **Lock Release Time**, and **Live Test & Diagnostics**: **Pulse Lock**, **Read Contact**, **Identify Reader** and **Last Card Read**. | | **Zones** | The door's primary and secondary zones. | | **Access Groups** | Groups that can use the door, through the schedules that include it. | | **Schedules** | Every schedule and visitor schedule that includes the door. | | **Events** | Access logs for the door from the last 15 days, such as Access Granted and Denied (Unknown User). | | **Advanced** | Reserved for integrator settings. | *![Screenshot 2026-11-05 131352](https://help.alocity.com/hs-fs/hubfs/Screenshot%202026-11-05%20131352.png?width=670&height=340&name=Screenshot%202026-11-05%20131352.png)* #### Change the door's wiring 1. On the **Hardware** tab, click **Reassign**. 2. Choose the board, address and port for the **Entry Reader**, **Exit Reader**, **Lock Relay**, **Door Contact (DPS)** and **Request to Exit**. 3. Save. Changes are pushed to the panel when you save. *![Screenshot 2026-11-05 131458](https://help.alocity.com/hs-fs/hubfs/Screenshot%202026-11-05%20131458.png?width=421&height=648&name=Screenshot%202026-11-05%20131458.png)* #### Who can use the door Access isn't granted on the door page. Users and groups get access through **schedules** that include the door (When × Who × Where). See [Adding Schedules](https://help.alocity.com/knowledge/adding-schedules?hsLang=en). --- ### 4. Test the Door 1. On the **Hardware** tab, click **Identify Reader** and check the right reader responds. 2. Click **Read Contact** with the door open and closed. 3. With someone at the door, click **Pulse Lock**. 4. Present a card from a user on a schedule for this door, and check **Events**. 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