Installing a public safety radio system is difficult because it must comply with the public codes. The problem is although the national codes are standardized this is not true of the local codes. Every country has their own way of accomplishing their goal and reading the regulations will not guarantee a company is compliant with the codes. The ICC/IFC and NFPA codes were established as a guideline for different municipalities. Every county has modified the national codes to suit their individual circumstances. The regulations for the current DAS and BDA systems are all different and the only way to ensure you understand the local requirements is to have a meeting with a representative of the Authority Having Jurisdiction for your area. This will make certain you have complied with the codes for the public safety systems.
A lot of the local regulations are extremely confusing, vague, have been interpreted in different ways, and the details are difficult to understand. There are new architectural aspects and innovations that must be discussed. In addition, many of the new requirements are not documented because they have not gone into effect yet. The only way to be aware of the new NFPA codes and ensure your information is correct is to have a critical review in person before you proceed.
An incoming 911 call can be placed on a cell phone or a land line. Regardless of the point of origin the call is conducted with the use of land mobile radios. The only way to make sure there is an adequate emergency RF signal and ensure public safety is for the jurisdiction to be completely covered. Motorola is the main supplier of outdoor repeater systems. These systems can cost hundreds of millions of dollars and a standardization is in place to support inter-jurisdictional interoperability. The in-building enhancements are affected by code requirements that have variations in every county and jurisdiction. The idea for DAS systems is to have extremely reliable voice communications all over the building. The difficulty is the actual configuration of the system, the technical requirements, the life of the backup power, and the fire rating of specific materials is all different.
This presents a problem for the individual who owns the building or the developer that can be very costly. It is possible for the system to provide the correct in-building coverage and not comply with the local codes. The installer must comply with the requirements of the county in every detail to avoid serious issues. The Authority Having Jurisdiction has rejected systems that were recently installed and fully functional because they were not in compliance with the local codes and rules. When full compliance is not achieved additions may be required that will require additional time and money. In the worst possible scenario, the entire system may have to be ripped out and replaced. A pre-design meeting will prevent any of this from occurring. The code must be read, understood, and reviewed in person with the Authority Having Jurisdiction before the installation begins.
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