RAD's Access Solutions for the Wireless Market
search:

  GO
InfoCenter InfoCenter - Case Studies

City of Norman, Oklahoma Implements RAD’s Airmux-200 & Megaplex-2100 for Public Safety Communications Network

Broadband Wireless Network Eliminates Costly T1 lines While Greatly Improving Reliability and Performance

 Application
- Wireless Public Safety Network
 Challenge
- To provide a highly reliable, mission-critical, Public Safety communications system for a growing city of over 125,000 people, connecting 700 employees spread out over 192 square miles.
 Solution
- Implement a point-to-point broadband wireless microwave network built with RAD’s Airmux-200 and Megaplex-2100 products. The Airmux-200 offers cost-effective radio connectivity over distances up to 50 miles using the new 4.9 GHz public safety band. The Megaplex-2100 multiplexer serves as an allpurpose access device for a broad range of services.
 Benefits
- Rapid ROI due to elimination of leased T1 circuits
- Affordable solution because of the price-performance of the 4.9 GHz radio
- Flexibility to support Ethernet, T1, 2-way radio, video, lowspeed data and other services
- Highly-reliable with greater than 99.995% uptime
- Ability to monitor and trouble shoot the entire communications system from one location
- Fast, high-speed, 18 megabit broadband connections

The City of Norman, Oklahoma is home to the 22,000 students of the University of Oklahoma and another 104,000 permanent residents and growing. In order to provide for the public safety and welfare of Oklahoma’s third largest city, the 700 city employees - including police, fire, EMS, public works and administration - need a reliable communications system. Lance Terry, Norman’s emergency communications manager, became alarmed when employees began reporting that the 2-way radio systems were not working properly. “We knew we had a problem when we were getting complaints 3 to 5 times a week that our system was going down. Little did we know that we were losing all our LEC T1 connections every single day between 3:00 and 5:00 PM our prime drive time!” Investigating the problem was very difficult because the system, over time, had grown extremely complex incorporating many vendors, making trouble shooting difficult.

 

Lance turned to the city’s radio technician, Robert Stolz. Robert’s first objective was to find a back-up to support the failing system. His investigations brought him to Betts Telecom, a RAD Value Added Reseller in Oklahoma City. Betts was experienced dealing with state and local government and understood the issues immediately. Scott Walsh, Betts' Customer Engineer, met with Lance and Robert and quickly recommended that the City look at ways to consolidate all the various communications services into a multiservice platform that would also provide a central point for troubleshooting.

City of Norman

Scott recommended the RAD Megaplex-2100 because of its ability to consolidate a wide variety of communications services such as 4 wire E&M for 2-way radio, video streams, LAN traffic and low-speed data onto a common inter-facility link. “After we installed the Megaplex muxes, our new central trouble shooting capability pointed to the real issue: Our T1 connections were going down every day”, said Scott. “I have never seen anything like it.” Both Lance and Robert knew that they had to replace the expensive T1 connections with a reliable, cost-effective alternative.

 

“We decided to install point-to-point microwave connections and looked at three other vendors, including the biggest name in two-way radios,” said Lance, “but the Airmux 4.9 GHz radios were less than half the price of the nearest competitor, and the only one that supported our T1 connectivity.

City of Norman

So how is the new system performing? “We have not had one outage since we implemented the Airmux-200 systems,” says Lance. “If we ever do have a problem, we will know how to trouble shoot it and get it back up fast,” Robert adds. “We will keep the land-line T1 circuits as a back-up to the Airmux-200 systems until we are able to install a fail-safe redundant ring.” When asked if he is pleased with the performance of the new system, Lance gives a resounding, “Very pleased.”

 

As part of a two-year plan of continuing improvements, the City of Norman intends to implement a redundant communications ring interconnecting all of its locations to ensure maximum reliability. The RAD Airmux-200 and the Megaplex-2100 will continue to play a prominent role in the City of Norman's evolving communications network.

City of Norman
Related Links
 Products
Airmux-200

City of Norman
 
 Products    Solutions    About RAD    News & Events    InfoCenter    Where to Buy