Teradyne's Celerity Deployed to Test More Than 20 Million Lines in Its First Year of Availability.

Business/Technology Editors

DEERFIELD, Ill.--(BUSINESS WIRE)--June 18, 2001

Teradyne's ADSL Loop Qualification Test System Pre-qualifies

Subscriber Lines Throughout North America and Western Europe 

Teradyne, Inc. (NYSE: TER) Broadband Test Division today announced that its Celerity ADSL Loop Qualification Test System is now testing over 20 Million subscriber lines since the product was launched on June 5, 2000. The bookings are comprised of multiple customers throughout North America and Western Europe. Celerity augments line record systems to enable accurate pre-qualification of copper loops for DSL services by testing all lines in the network by directory number, refreshing information in the line record database weekly or monthly, and operating independently of other systems without requiring complex interfaces.

Celerity accurately qualifies millions of lines in hours enabling Local Exchange Carriers (LEC's) to test every line exposed to DSL every month. In addition, Celerity enables LEC's to deploy more DSL sooner by increasing the pool of available DSL-ready lines and increasing the productivity of the provisioning process.

"Celerity is a product that addresses the key business issues of DSL: provisioning, loop qualification and service assurance," said Wayne Lasson, general manager of Teradyne's Broadband Test Division. "The proven technology allows customers to successfully meet their goal of speeding up and dramatically reducing the cost of DSL deployment."

Celerity tests the physical network in seconds and determines the following vital characteristics of loop make up:

--Loss, accounting for the presence of bridged taps

--Presence of Load Coils

--Loop Length

--Imbalance faults

--Metallic faults

--Termination detection, including splitters.

Celerity qualifies large volumes of lines to support volume DSL deployment and develops a database of lines that are qualified to install immediately, lines that require conditioning or lines that are disqualified. Celerity also performs a real time test that provides detailed loop qualification information. The system tests in-service DSL lines, identifying the presence and dispatch location of data affecting faults.

"Celerity is a highly flexible solution with a feature set of modules that can be selected and deployed based on specific service provider needs," says Chris Bohrson, director of sales and marketing of Teradyne's Broadband Test Division. "The ability for a service provider to create a network testing system catered to his particular needs is crucial in today's market. Celerity operates independently of other systems and does not require a complicated interface to be implemented. In addition, Celerity can be applied as an overlay where existing voice loop test systems are in place."

Celerity consists of a Test System Controller (TSC), and a number of central office-based Loop Diagnostic Units (LDU). The LDU executes specialized narrowband test techniques through the existing low frequency test bus in class 5 switches. The TSC contains expert system software and an array of cable and modem models. With this capability, Celerity can determine the presence of DSL speed impairments such as load coils or series imbalance faults, as well as determine the transmission speed of the line through it's loss measurement. Celerity's distributed architecture enables the system to access thousands of lines simultaneously and thereby perform tests on millions of lines in hours. Celerity is a self-contained test system, delivering information that is immediately useable through standard OS interfaces to data warehouses.

"The technology we developed is innovative, proven and gets our customers results," said Frank Bauer, director of advanced technology of Teradyne's Broadband Test Division. "Celerity's overwhelming success within the short period of a year establishes it as a true leader in a highly competitive telecommunications marketplace."

About Teradyne Broadband Test Division

Teradyne Broadband Test develops state-of-the-art-testing capabilities that support service provider's goals to sell and deploy more services sooner and improve the efficiency of qualification, provisioning, and customer care. Teradyne's nine years of Internet protocol testing experience enhances its 29 years experience in providing test systems that support voice customer care for over 110 million voice lines worldwide. For more information on Teradyne's Broadband Test Products, visit Teradyne at: http://www.teradyne.com/prods/btd/