Sonet rings

Aug. 1, 1995

Sonet rings

Sprint Corp., Kansas City, MO, has completed its first coast-to-coast (New York to San Francisco) telecommunications route using multiple interconnected rings of fiber-optic cable to safeguard its network. In the event of a cut cable or electronics failure, the synchronous optical network rings can reroute service in approximately 60 milliseconds. With its new Sonet system, the company has increased its number of lines to four instead of one or two. Even if all four fibers are severed anywhere on the network, calls are sent instantly in the opposite direction around the ring to avoid disruption.

Also, Sprint Corp. and Alcatel Network Systems, Richardson, TX, have completed an 1800-mile, 4-fiber, bidirectional line-switched ring through Massachusetts, New York, New Jersey, Ohio and Pennsylvania. This ring serves Sprint customers in New York City, Buffalo, NY, Springfield, MA, and Akron, OH.

Sponsored Recommendations

Transforming the metro network and the evolution of the "Digital Service Provider"

March 4, 2025
Join experts at EXFO and Ekinops in this webinar that will review the evolving metro-centric requirements and the technologies emerging to meet them.

Unveiling the Synergy Between AI and Optical Networking

March 12, 2025
Join us for an engaging discussion with industry experts on the intersection of AI and optics. Moderated by Sean Buckley, editor-in-chief of Lightwave+BTR, this panel will explore...

AI and Network Convergence: Transforming Global Connectivity

March 7, 2025
In today’s hyperconnected world, rolling out and managing profitable, high-performance networks for access and transport will require innovative architectural approaches. The ...

On Topic: Tech Forecast for 2025/ What Will Be Hot

Dec. 9, 2024
As we wind down 2024, Lightwave’s latest on-topic eBook will examine the hot topics for 2025. AI is at the top of the minds of optical industry players supporting...