Marconi, Ericsson in DWDM pact

Marconi has signed an expanded agreement with Ericsson to source Marconi's range of Dense Wavelength Division Multiplexing (DWDM) next-generation optical networking equipment. The new deal also embraces the companies' long-standing pact on synchronous digital hierarchy (SDH) equipment.

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By  Richard Brown Published  June 9, 2002

The new deal ensures integrated, end-to-end optical networking for Ericsson's mobile and fixed multi-service customers around the world. Ericsson will also provide comprehensive global services to its optical network customers, including network management solutions developed in-house.

DWDM is network transmission technology that transmits large volumes of multiple network traffic types (including voice, data, video) across networks at very high speed. DWDM uses multiple lasers and transmits several wavelengths of light (lamdas) simultaneously over a single optical fibre.

Mike Parton, Marconi's chief executive officer, remarks: “Our very successful partnership with Ericsson over the last six years has created a strong foundation on which to expand our future market strategy for Marconi DWDM. This agreement provides substantial benefits to Marconi. It will also provide Ericsson with a strong technology proposition to enable their customers to evolve their optical networks.”

DWDM enables the speed and capacity of existing fibre networks to be increased dramatically and can support more than 150 wavelengths at one time, each carrying up to 10 Gbps. Such systems provide over 1 terabit per second of data transmission on one optical strand, which is thinner than a human hair.

The Marconi/Ericsson relationship began in 1995 when the two companies signed a co-marketing agreement. This was followed by a further agreement in 1999 in which Marconi's SDH portfolio became a key element of the fibre-optic backbone of Ericsson's mobile and broadband networks.

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