External Controls Use the External Controls subtab to enable or disable 15327-CL-CTX card external controls. Item Description Control # Displays the number assigned to the external control. Enabled If checked, activates the external control fields. Control Type Sets the control type. Eight devices are available. Trigger Type Sets the external control trigger: a local minor, major, or critical alarm; a remote minor, major, or critical alarm; or a virtual wire activation. Description Allows you to enter a description. Apply Applies changes made to the fields in the tab. Reset Cancels any changes to the tab and returns the fields to their last-saved settings. Help Displays context-sensitive help.