1 Scope

1.1 These requirements cover products (e.g. repeater, transmitter, receiver, signal booster components, remote annunciators and operational consoles, power supply, and battery charging system components) used for emergency responder communication enhancement systems installed in a location to improve wireless communication at that location.

1.2 In the United States – These requirements cover products to be employed in accordance with the following Model Building and Installation Codes:

1. a) Standard for the Installation, Maintenance, and Use of Emergency Services Communications Systems, NFPA 1221;

2. b) Standard for Emergency Services Communications, NFPA 1225;

3. c) National Electrical Code, NFPA 70;

4. d) Fire Code NFPA 1;

5. e) Life Safety Code, NFPA 101;

6. f) International Fire Code

7. g) Building Construction and Safety Code, NFPA 5000.

Summary of Topics

This new Third Edition of ANSI/CAN/UL 2524 dated March 22, 2024 includes the following changes in requirements:

– Correction to Polarity Reversal Test; 46.1

– Revised standard title to "Emergency Responder Communication Enhancement System"; 1.1, 1.3, 6.2, 6.10, 33.2, 36.1.1 – 36.1.3, 36.1.5 and 54.12

– Updated references to Model Building and Installation Codes; 1.2, Section 5 and 53.1.1

– Optical fiber technology and relaxation of enclosure requirements for equipment intended for indoor use/dry locations; 9.1.1

– Clarification of on-premises visual and labeled indications; 6.30, 36.1.3; 36.1.6; 34.2 and 34.3

– Update of Annex A – Standards for Components

– Addition of requirements for products intended to be installed outdoors; Section 49, Section 51, and 53.1.22

– Corrections to Section 28.3

– Clarification of maximum propagation delay; 34.4