Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
SPECIAL ANNOUNCEMENT
2016 Photonics Buyers' Guide Clearance! – Use Coupon Code FC16 to save 60%!
share
Email Facebook Twitter Google+ LinkedIn Comments

MCI Tests Hitachi Telecom Optical Cross-Connect Systems

Photonics Spectra
Oct 1997
MCI has begun trials of a system from Hitachi Telecom that enables the complex restoration of high-speed transmission routes on optical networks. The MCI-Hitachi application employs five optical cross-connect systems deployed at various nodes in MCI's fiber optic network in Dallas. The trial covers ring and mesh route topologies operating at two different transmission rates.
It also is compatible with existing protection schemes and can simultaneously restore wavelength division multiplexed signals. Optical cross-connects require integrating a number of small, very fast optical switch elements, along with monitoring and control circuits. Switching from failed optical routes to restoration fibers must be accomplished automatically and quickly, often requiring use of multiple restoration paths.


Comments
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!