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Strategic Use of Keyless Locks
There are places in the high-rise where hundreds of persons need access. Areas like computer rooms, back doors of kitchens, delivery doors and employee entry doors are best served by replacing the mechanical lock with a pushbutton lock. The pushbutton lock should be equipped with a lock cylinder that can be keyed to the building master key for override purpose.
The advantage is that the pushbutton lock can be reprogrammed many times without affecting the master key system. Another advantage is that hundreds of keys do not have to be issued every time the lock is reprogrammed.
Key Sequencers As Passive Key Management
Key sequencers complement key control. A sequencer is a solid block with two cylinders or cores linked together so that when one key is removed, the other key is trapped. Either one or the other key can be removed but both cannot be removed at the same time.
A typical use is converting a small conference room for a visiting tax auditor. A sequencer is mounted near the door. Trapped into the sequencer is the only key to the small conference room. Any key on that floor can access the sequencer, including a temporary key for the auditor.
In the morning, the auditor inserts his visitor’s key and removes the conference room door key. He now is guaranteed complete private access to the conference room until he is ready to leave.
Another application controls the use of master keys throughout the high-rise by custodians. The night-shift custodians are given common “custodian” keys. These open all custodian closets. In each custodian closet is a floor master trapped into a sequencer. The custodian removes any floor master by inserting the custodian key in the block. In order to retrieve the custodian key, the floor master must be returned to the block.
If the key isn’t retrieved, the next custodian reports the missing key and the locksmith records the key number trapped in the block. That number identifies the custodian who took the floor master key. This process guarantees that custodians do not leave their shift with master keys.
This article deals with the reality of working with master key systems in high-rises. Many of the techniques mentioned should only be attempted by experienced locksmiths who know how to skew the rules slightly in the effort to preserve valuable “real estate” within the pages of their master key system. The point is that the rules can be safely skewed by experts.
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Choose and manage your high security key system carefully.