This two door controller is designed for installations where the traffic volumes are large and changes to the card holder database are a daily occurrence. It is networkable to up to 4,000 doors, and it can manage up to 60,000 users and fast changes to large databases.  One educational facility that has benefited from the solution is The Sheffield College in South Yorkshire, the UK, that is spread over three locations and has a student population of 23,000.

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