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Resolution: Apartment Corridor Lock function is defined as a lock where the latch bolt operated by lever from either side, except when outside lever is made inoperative by a stop or mechanical means other than...:

Does Von Duprin offer a classroom security option with visual status indication?

Resolution: Von Duprin offers two options: The CDSI/HDSI Dogging Indicator provides an at-a-glance verification of the status of the door from inside of the room. Visible “LOCKED” and “UNLO...:

How do you convert the Von Duprin 370 series controls to NL or night latch function?

Resolution: You must have the Von Duprin NL Cylinder plate part number 967484-89 to convert the 370 series controls from classroom function to night latch function. If new installation, use the NL cylinde...:

What is the difference between a classroom and an entry lock?

Resolution: CLASSROOM LOCK: A lock that locks and unlocks the outside lever with a key. Inside is always free egress. ENTRY LOCK: A lock that locks and unlocks the outside lever with button/turn on the insi...: