Marconi Provides Mission-Critical Network for Heathrow Airport's Terminal 5 People Mover Project

Marconi Provides Mission-Critical Network for Heathrow Airport's
Terminal 5 People Mover Project
Bombardier relies on Marconi's proven communications networks and installation
services for expansion at one of world's busiest airports 


PITTSBURGH, May 31  /PRNewswire-FirstCall/ -- Marconi Corporation plc

(LONDON: MONI and Nasdaq: MRCIY)  today announced that Bombardier
Transportation will use Marconi's data networking equipment and services to
handle mission critical train control data for Automated People Mover (APM) at
BAA Heathrow's Terminal 5 project. Construction of Heathrow T5 will expand
capacity at Heathrow, already one of the world's busiest airports, to
accommodate another 30 million passengers a year.

Bombardier and Marconi are also partnered to deliver a similar, comprehensive
train-control data network for the Dallas/Fort Worth International Airport in
2005. At Heathrow, Marconi will provide Bombardier with a scalable, digital
network for command and control of the APM -- a driverless train for
transferring passengers between the main terminal and outlying buildings using
a dedicated underground track.  Marconi's services include a fully integrated
turnkey communications system, combining a mission- critical, multiservice
network with installation and training.

"Marconi's expertise in designing, building and servicing mission-critical
communications networks is proven in the most demanding environments around the
world, including national defense and emergencies, transportation command and
control, and security and surveillance applications," said Geoff Doy, CEO of
Marconi's Data Networks division that is supplying the network and ongoing
services. "Key features of Marconi's communications networks are flexibility
and ease of expansion, which improve long-term investment returns and make them
well-suited for the new packet-based applications of next-generation networks."

About the T5 Project

T5 will add passenger handling capacity of between 30 million and 35 million
passengers a year at Heathrow.  Phase 1 of the project, which includes the main
terminal building and one satellite building is due for completion in March
2008. Phase 2, which includes the second satellite building, is scheduled for
completion in 2011.

About Marconi Corporation plc

Marconi Corporation plc is a global telecommunications equipment, services and
solutions company. The company's core business is the provision of innovative
and reliable optical networks, broadband routing and switching, broadband
access technologies and services. The company's customer base includes many of
the world's largest telecommunications operators.

The company is listed on the London Stock Exchange under the symbol MONI and on
NASDAQ under the ticker MRCIY.  Additional information about Marconi
Corporation can be found at http://www.marconi.com/ .

All brands or product names are trademarks of their respective holders.

This press release contains forward-looking statements with respect to
products, partners, customers, future growth and other matters. Please refer to
the Form 10-K report filed by Marconi Corporation plc with the United States
Securities and Exchange Commission for a discussion of risks that could cause
actual results to differ materially from such statements. 

DATASOURCE: Marconi Corporation plc



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