Senior Management Appointment

Spirent PLC
15 November 2004





                                  SPIRENT PLC



                        SENIOR MANAGEMENT APPOINTMENT



London, UK - 15 November 2004: Spirent plc (LSE: SPT; NYSE: SPM), a leading
communications technology company, today announces that Mr William (Bill) Burns
has been appointed President of the Service Assurance division of Spirent
Communications with immediate effect.



Mr Burns (37) was previously Senior Vice President of Global Marketing at
Tellabs, Inc., a leading US network equipment manufacturer.  At Tellabs, Mr
Burns was responsible for global marketing, product strategy and technology as
well as marketing communications.  Prior to this he was Senior Vice President
Europe, Middle East and Africa for Tellabs, based in the UK, and held several
senior sales management and sales engineering positions at the company.



In his role at Spirent Mr Burns will report directly to the Chief Executive.  He
will be responsible for the globalisation, growth and strategic direction of the
Service Assurance division which provides network monitoring and management
systems to telecoms service providers.



Commenting on the appointment, Anders Gustafsson, Chief Executive, said:



'Bill has over 15 years' experience in the telecoms industry and a track record
of growing and leading teams focused on launching products and winning
customers.  I believe he has the right skill set to address the challenges that
lie ahead for us in the Service Assurance division as we extend our capabilities
in the IP services sector and globalise the business.  We are all looking
forward to working with him.'



                                    - ends -



Enquiries

Anders Gustafsson, Chief Executive           Spirent plc     [phone]
Eric Hutchinson, Finance Director

Investor Relations
Catherine Nash                               Spirent plc     [phone]

Media
Tom Buchanan/Rupert Young                    Brunswick      [phone]




About Spirent



Spirent is a leading communications technology company focused on delivering
innovative systems and services to meet the needs of customers worldwide.  We
are a global provider of performance analysis and service assurance solutions
that enable the development and deployment of next-generation networking
technologies such as broadband services, Internet telephony, 3G wireless and web
applications and security testing.  Our Network Products business is a developer
and manufacturer of innovative solutions for fastening, identification,
protection and connectivity in electrical and communications networks marketed
under the global brand HellermannTyton.  The Systems group comprises PG Drives
Technology which develops power control systems for specialist electrical
vehicles in the mobility and industrial markets.  Further information about
Spirent plc can be found at www.spirent.com



Spirent Ordinary shares are traded on the London Stock Exchange (ticker: SPT)
and on the New York Stock Exchange (ticker: SPM; CUSIP number: 84856M209) in the
form of American Depositary Shares (ADS), represented by American Depositary
Receipts, with one ADS representing four Ordinary shares.



Spirent and the Spirent logo are trademarks or registered trademarks of Spirent
plc.  All other trademarks or registered trademarks mentioned herein are held by
their respective companies.  All rights reserved.



This press release may contain forward-looking statements that are based on
current expectations or beliefs, as well as assumptions about future events.  By
their nature, forward-looking statements are inherently predictive, speculative
and involve risk and uncertainty because they relate to events and depend on
circumstances that will occur in the future.  You should not place undue
reliance on these forward-looking statements, which are not a guarantee of
future performance and are subject to factors that could cause our actual
results to differ materially from those expressed or implied by these
statements.  These risks include the risks described from time to time in
Spirent plc's Securities and Exchange Commission periodic reports and filings.
The Company undertakes no obligation to update any forward-looking statements
contained in this press release, whether as a result of new information, future
events or otherwise.






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