Old revisions Add to book Export to PDF Fold/unfold all Book Creator Add this page to your book Book Creator Remove this page from your book Manage book (0 page(s)) Help Scheduled unlock A function that opens the doors in a specific zone according to a preset schedule. For instance, this function is used in zones in commercial facilities or public institutions where the doors must stay open so that an unspecified number of visitors can freely enter and exit the zone for a certain period of time without restriction. See Also Scheduled lock