The Lockdown feature can be set from the software or from the hardware (from an input designated as a Global Lock input).
Lockdown (or sometimes referred to as Emergency Lockdown) is used to instantly lockdown all doors or certain doors within a facility. The Lockdown setting, when applied instantly locks all open doors, cards no longer can gain access and egress is not allowed except where a mechanical exit device such as a crash bar exists.
To provide added flexibility, the system can be configured to exclude certain doors from participation, and selected credentials can be designated to override the lockdown condition, such as those cards held by law enforcement personnel.
There are several options available to trigger the Lockdown setting for a door or selection of doors, any or all of which can be utilized.
Whenever you highlight a reader in the hardware tree or the doors status grid you will see various icons highlighted in the hardware selection ribbon bar (at the top of the screen). They are divided into three distinct categories; Mode, Timed and Masking. You will see the Lockdown icon within the Mode section. Click the Lockdown icon while a reader is highlighted and that reader will go into Lockout mode.
Note: You can select multiple readers from the doors status grid, thereby allowing you to set multiple doors to the Lockdown mode. This is done using the SHIFT or CTRL keys on the keyboard.
You can setup Global Lockdown to be activated and deactivated from the software. This feature is normally used when you want all doors in the system to go into the Lockdown state, or most of the doors - (you can configure certain doors to not respond to Global Lock/Lockout/Lockdown commands. When Global Lock is setup for use with the software you will see additional icons appear in the Situation Manager ribbon located via the Home tab.
Click here for information about how to set the System Global Lockdown (Situation Manager Software Configuration) and other related parameters.