The customer wanted to re-use existing door hardware, while adding a new card reader connected to an existing access control system. An electric latch retraction upgrade for the exit bars was a key component of the plan.
For many older exit devices, electrified trim was not originally available from the manufacturer. Third party manufacturers are available to fill this void.
These devices are used where only one door may be unlocked or open at one time. Unlocking or opening one door automatically secures all other doors within the designated area.