In the event of a crisis, public safety personnel and first responders require reliable emergency responder radio coverage. Being able to communicate with their public safety two-way radio systems in-buildings is crucial for the first responders to respond and execute time-sensitive and mission-critical tasks to protect the public.
An in-building public safety coverage system is often installed to provide these necessary means of communications. Based on local government and ordinances, the in-building system must comply with NFPA and IFC codes, and also with NEMA 4 or IP66 enclosure requirements to stand up to harsh environments.
According to NFPA, critical areas, such as the fire command centers, the fire pump rooms, exit stairs, exit passageways, elevator lobbies, standpipe cabinets, sprinkler sectional valve locations, and other areas deemed critical by the authority having jurisdiction, shall be provided with 99 percent floor area radio coverage and with a minimum inbound and outbound signal strength of -95dBm. These requirements are based on current analog and P25 systems. FirstNet, an LTE based system will require different criteria.
With Dali’s all-digital Distributed Antenna System (DAS), requirements can be satisfied and future technologies can also be implemented incrementally as needed. Dali Wireless’ public safety in-building coverage solution can be applied in conventional two-way radio systems, trunked radio systems like P25, TETRA, IDEN, Tetrapol, LTE and among others to ensure clear and distortion-free transmission and distribution of radio communication information.
Dallas Fort Worth International Airport Public Safety Design
Introducing A Digital Distributed Antenna System (DAS) For Public Safety In-Building Communications
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