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NOTE: This is an unformatted excerpt from our online fire protection training library.

Authorities and Requirements

Fire Alarm System Fundamentals

Power Supply Continuity

Typical uninterruptible power supply (UPS) When normal power to the fire alarm control panel is lost, a smooth transition to secondary power is required. It can take no longer than ten seconds to transition from normal to secondary power. During this transition, signals cannot be lostSome early addressable systems may lose their memory if the power to the microprocessor is disconnected for even a few seconds. In this case, a UPS would be needed to ensure that there would be no loss of memory during transition..

If needed, an uninterruptible power supply (UPS)An uninterruptible power supply will ensure that there would be no loss of memory during transition, because the UPS will provide instantaneous power to the fire alarm control unit. can be provided to assist in the smooth transition.
NOTE: This is an unformatted excerpt from our online fire protection training library.

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