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UL 2525

Standard for Two-Way Emergency Communications Systems for Rescue Assistance
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UL 2525, formally known as the Standard for Safety for Two-Way Emergency Communications Systems for Rescue Assistance, establishes the rigorous requirements for the design, construction, and performance of communication equipment used in building "Areas of Refuge." This standard ensures that individuals who may require assistance during an emergency—such as those with physical disabilities—can reliably communicate with emergency personnel or a central monitoring station. It covers critical components including master stations, remote call stations, and power supplies, mandating specific criteria for supervised circuitry, audio clarity, and structural durability to guarantee operational integrity during life-safety events like fires or building evacuations.
SDO UL: Underwriters Laboratories Inc.
Document Number 2525
Publication Date June 12, 2020
Language en - English
Page Count 136
Revision Level
Supercedes
Committee
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