XDT-24 Securitron Exit Delay Timer 24VDC

The XDT-12 and XDT-24 are specialized exit delay timers designed to be integrated with fail safe electric locks and switch equipped devices for delay initiation and reset. This creates a modular door control package which fully meets American and Canadian building codes for delayed exit (Special Locking Arrangements). See Section 3 for detailed information on these codes. As the part numbers show, separate versions of the XDT exist for operation on 12 or 24 VDC.

The power of the XDT, however, goes considerably beyond meeting the code requirements. Delayed exit is only one aspect of door control in sophisticated facilities. The XDT includes optional functions that can be employed in entry control, door/lock monitoring, and authorized immediate exit. External switches such as time clocks can also put the XDT into different modes if delayed exit is not desired at all times.

To simplify the installer's task in understanding these instructions, we first describe delayed exit which is the primary function of the XDT. Later sections describe the timer's optional functions. These sections can be quickly browsed to see if any of the functions will improve the installation.

XDT-24 User Manual