Search Menu
Photonics Media Photonics Marketplace Photonics Spectra BioPhotonics EuroPhotonics Vision Spectra Photonics Showcase Photonics ProdSpec Photonics Handbook

Europe's Telcos Gird for Traffic Onslaught

Facebook Twitter LinkedIn Email Comments
Ewart Lowe, BT Labs, UK

European telecommunications companies, anticipating the demand for delivery of interactive multimedia services to business and residential customers, are busy planning for tomorrow. On the drawing boards are broadband networks designed for increasing the traffic-carrying capability of core transport networks.
Today’s modern networks are based on electronic synchronous digital hierarchy (SDH), the electronic successor to Europe’s plesiochronous digital hierarchy (PDH). SDH’s improved signal synchronicity between local modes compared with PDH, its cross-connects and high-capacity single carrier opto-electronic transmission line systems support various switched platforms, including asynchronous transfer mode, switched multimegabit data service, frame relay, etc. Tomorrow, it will be feasible and cost-effective to build the transport infrastructure using layers of electronic and all-optical nodes, interconnected with very-high-capacity wavelength division multiplexed carrier transmission systems.

Photonics Spectra
Feb 1997

Photonics Spectra Optics Conference 2022
view all
Search more than 4000 manufacturers and suppliers of photonics products and services worldwide:

back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2022 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, [email protected]

Photonics Media, Laurin Publishing
x Subscribe to Photonics Spectra magazine - FREE!
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.