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Power failure transfer

In telecommunication, the term power failure transfer has the following meanings: 1. * The switching of primary utilities to their secondary backup… 
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Related topics

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4 relations

Broader (1)

Failure
Telephone exchangeTelephone lineTrunking

Papers overview

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2001
2001
Power failure transfer circuits in key telephone system
PURPOSE: A circuit for transferring a central office line when power failure occurs in a key phone system is provided to have a… 
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