Primary/secondary controllers can put businesses and people at risk

• With a primary/secondary controller, only the primary controller has intelligence.
• Each secondary door is connected to a dumb interface module.
• If the primary controller fails, it degrades all doors it is supposed to control.
• They will all be left locked or open – whatever their state may be when the system fails.

Don't gamble with your access control

• Multi-door controllers set permissions for a group of 2, 4, 8 or even more doors.
• It is like a primary controller for that particular group.
• As with the primary/secondary setup, if the controller goes down, the entire array of doors is vulnerable.
• Most current systems use this inadequate approach.

Millennium Group intelligent controllers overcome these problems

• With a distributed system, every control panel is smart.
• Each card reader is connected to an intelligent controller.
• Each door has its own database.
• Each door makes its own decisions.
• If a problem occurs, it affects one and only one door.
• Widespread failure is virtually impossible.