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Project 25 Standards are Nationwide – and Beyond

Public safety agencies across North America have adopted Project 25 (P25) as the set of standards for interoperable digital two-way wireless communications. Beyond local, county, tribal, state and federal agencies, adoption by industries such as utilities, airports, transit, petroleum and chemical companies means that P25 sets the standard for two-way radio products.

Administered by the Telecommunications Industry Association (TIA), P25 is the result of collaboration between public safety agencies, industry leaders, and organizations such as the NASTD, NSA, NITA and others. Its significance is difficult to overstate; in fact, government agencies globally have adopted P25 for mission-critical communications, including in Australia, Russia and South America.

Where Does P25 Apply?

In a white paper titled “Project 25 Interoperable Communications for Public Safety Agencies,” Motorola describes P25 as an expanding suite of standards that grows as new technologies evolve. As network topologies and technologies advance, the interfaces where P25 applies continues to grow. Some of these include:

  • Common air interface
  • Inter-RF subsystem interface
  • Subscriber data peripheral interface
  • Fixed station interface
  • Console substation interface
  • Data network interface
  • Telephone interconnect interface

How Does Surge Protection Fit?

As in any communications network application, surge protection plays a crucial role in ensuring ongoing service and minimizing downtime in the event of a lightning strike, surge, transient, or other power anomaly. In applications such as land mobile radio (LMR) serving first responders, public works departments, or 911 dispatchers, any downtime can be disastrous.

Transtector Systems and PolyPhaser provide industry-leading, non-degrading surge protection devices (SPDs), as well as configured RF, AC and DC solutions and products optimized for LMR. Both Transtector and PolyPhaser have long histories of working within the industry to set standards, then engineering products that meet or exceed these requirements.

Our LMR surge protection solutions include reliable P25-compliant products for global LMR systems, as well as a broad range of solutions for Motorola R56 standards, ASTRO architectures, Dimetra, MOTOTRBO, LTE eNb, WiFi radios and tower-top amplifiers.

Learn more:

Click here to download our free LMR surge protection brochure.

Click here to visit our LMR solutions page.

Click here to see our online Motorola R56 LMR ordering guide.

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