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ASSA Master Key Systems

Security and convenience of movement are inevitably in conflict with each other. A master key system is, by its very nature, a compromise between total security and totally free movement which would entail no security. With a little thought and planning a system can be designed to suit the client’s precise operational requirements within each building. All ASSA locks can be incorporated in a master key system. These are in turn designed around the people who will use them. This has led to systems being designed in a way that is unique to ASSA. The number of locks in a building is first established, followed by the people who will use them and the areas they need to enter. Only then are the customer’s particular requirements detailed on a special chart, enabling the system to be made up to suit the specific security requirements of the customer. Users can then be issued with their own unique key which allows them to move freely - but only through areas they need to enter.

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A simplified example of a typical ASSA Master Key system
A simplified example of a typical ASSA Master Key system
A simplified example of a typical ASSA Master Key system
Each person is issued with their own unique key which only opens doors appropriate to their job function. For example, all open door A, but only the Senior Manager can open Door E. ASSA Master Key Systems designed in this way can be extended to satisfy the requirements of large and complex installations without compromising their integrity.

ASSA supply special forms for use in recording detailed master key information in an easily intelligible manner.