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2015 MINNESOTA STATE FIRE CODE 505 <br />APPENDIX L <br />EMERGENCY RESPONDER RADIO COVERAGE <br />The provisions contained in this appendix are not mandatory unless specifically referenced in the adopting ordinance. <br />L101 Emergency responder radio coverage in existing <br />buildings. Existing buildings that do not have approved radio <br />coverage for emergency responders within the building based <br />upon the existing coverage levels of the public safety com- <br />munication systems of the jurisdiction at the exterior of the <br />building, shall be equipped with such coverage according to <br />one of the following: <br />1. Whenever an existing wired communication system <br />cannot be repaired or is being replaced, or where not <br />approved. <br />2. Within a time frame established by the adopting author- <br />ity. <br />Exception: Where it is determined by the fire code <br />official that the radio coverage system is not needed. <br />L102 Emergency responder radio coverage in new build- <br />ings. All new buildings shall have approved radio coverage <br />for emergency responders within the building based upon the <br />existing coverage levels of the public safety communication <br />systems of the jurisdiction at the exterior of the building. This <br />section shall not require improvement of the existing public <br />safety communication systems. <br />Exceptions: <br />1. Where approved by the building official and the fire <br />code official, a wired communication system in <br />accordance with Section 907.2.13.2 shall be permit- <br />ted to be installed or maintained in lieu of an <br />approved radio coverage system. <br />2. Where it is determined by the fire code official that <br />the radio coverage system is not needed. <br />3. In facilities where emergency responder radio cover- <br />age is required and such systems, components, or <br />equipment required could have a negative impact on <br />the normal operations of that facility, the fire code <br />official shall have the authority to accept an auto- <br />matically activated emergency responder radio cov- <br />erage system. <br />4. Where it is determined to be unreasonably burden- <br />some to implement an approved radio coverage sys- <br />tem. <br />L103 Permit required. A construction permit for the instal- <br />lation of or modification to emergency responder radio cover- <br />age systems and related equipment is required. Maintenance <br />performed in accordance with this code is not considered a <br />modification and does not require a permit. <br />L104 Technical requirements. Systems, components, and <br />equipment required to provide emergency responder radio <br />coverage system shall comply with Sections L104.1 through <br />L104.2.6. <br />L104.1 Radio signal strength. The building shall be consid- <br />ered to have acceptable emergency responder radio coverage <br />when signal strength measurements in 95 percent of all areas <br />on each floor of the building meet the signal strength require- <br />ments in Sections L104.1.1 and L104.1.2. <br />L104.1.1 Minimum signal strength into the building. A <br />minimum signal strength of -95 dBm shall be receivable <br />within the building at a hip-worn device. <br />L104.1.2 Minimum signal strength out of the building. <br />A minimum signal strength of -95 dBm shall be received <br />by the agency’s radio system when transmitted from <br />within the building from a hip-worn device. <br />L104.2 System design. The emergency responder radio cov- <br />erage system shall be designed in accordance with Sections <br />L104.2.1 through L104.2.6. <br />L104.2.1 In-building coverage systems allowed. Build- <br />ings and structures which cannot support the required level <br />of radio coverage shall be equipped with a radiating cable <br />system, a distributed antenna system with Federal Com- <br />munications Commission (FCC)-certified repeaters, bi- <br />directional amplifiers, picocells or their equivalents, or <br />other system approved by the fire code official in order to <br />achieve the required adequate radio coverage. <br />L104.2.2 Technical criteria. The fire code official shall <br />maintain a document providing the specific technical <br />information and requirements for the emergency <br />responder radio coverage system. This document shall <br />contain the various frequencies required, the location of <br />radio sites, effective radiated power of radio sites, and <br />other supporting technical information. <br />L104.2.3 Secondary power. Emergency responder radio <br />coverage systems shall be provided with an approved sec- <br />ondary source of power. The secondary power supply <br />shall be capable of operating the emergency responder <br />radio coverage system for a period of at least 24 hours. <br />When primary power is lost, the power supply to the emer- <br />gency responder radio coverage system shall automati- <br />cally transfer to the secondary power supply. <br />L104.2.4 In-building coverage system requirements. If <br />used, in-building coverage systems shall meet the follow- <br />ing requirements: <br />1. All in-building coverage system components shall <br />be contained in a National Electrical Manufacturer’s <br />Association (NEMA) 4-type waterproof cabinet. <br />2. Battery systems used for the emergency power <br />source shall be contained in a NEMA 4-type water- <br />proof cabinet. <br />3. The in-building coverage system and battery system <br />shall be electrically supervised and monitored by a <br />M <br />N <br />M <br />N <br />M <br />NM <br />N <br />M <br />N <br />M <br />N <br />M <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />MN <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />MN <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />MN <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />MN <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />NM <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />NM <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />NM <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />NM <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />NM <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />NM <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />N <br />M <br />Copyright © 2016 ICC. 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