Teradyne Announces Worldwide Availability of the LDU 50; For Test & Diagnostics of Next Generation IP Networks

DEERFIELD, Ill.--(BUSINESS WIRE)--Sept. 18, 2006--Teradyne (NYSE:TER), a leader in broadband service assurance solutions, today announced the worldwide availability of the Loop Diagnostic Unit (LDU) 50. The LDU 50 is the Broadband Test Division's latest test unit providing qualification, provisioning and service assurance testing of next generation access networks. The LDU 50 supports local loop testing in exchange-based applications as well as in the extended temperature environment of remote cabinet applications (DLC, BBDLC, MSAN and FTTC), including those deployed in support of new IP networks. First deployment of the LDU 50 occurred last year in a large North American carrier, allowing them to extend their 4TEL(R) system to test lines fed from newly deployed soft switch remote cabinets. Subsequent deployments are proceeding for North American and European customers.

The LDU 50 is a DSP-based test head leveraging technology from its predecessor, the LDU 100, which has over 19,000 installations across Teradyne's worldwide installed base of 150 million lines. The LDU 50 supports all current 4TEL, 4TEL II and Celerity(R) functions and includes extended 5MHz wideband measurement capability for provisioning and service assurance testing of the copper plant to support broadband technologies (xDSL) and services (VoIP, IPTV). The LDU 50 also supports a services testing upgrade to provide an integrated physical and logical broadband test solution that fits into a single 1U test head.

With the LDU 50, network operators are able to extend their automated qualification, provisioning and service assurance testing capabilities to environmentally rugged locations, including fiber-fed remote cabinet installations. The LDU 50 has CE and NEBS certifications for support of worldwide market application.

About Teradyne, Inc.

Teradyne (NYSE:TER) is a leading supplier of Automatic Test Equipment used to test complex electronics used in the consumer electronics, automotive, computing, telecommunications, and aerospace and defense industries. In 2005, Teradyne had sales of $1.08 billion, and currently employs about 4,000 people worldwide. For more information, visit www.teradyne.com. Teradyne(R) is a trademark of Teradyne, Inc. in the U.S. and other countries. All other brands and product names are trademarks or registered trademarks of Teradyne, Inc. (including its subsidiaries) or their respective owners.

About the Broadband Test Division

Teradyne Broadband Test is a division of Teradyne, Inc (NYSE:TER). The group develops state-of-the-art testing capabilities that help service providers sell and deploy more broadband services sooner and improve the efficiency of qualification, provisioning, and customer care for DSL and voice networks. Teradyne's 30+ years of industry-leading background in layer one testing has created solutions that support 150 million voice lines and 60 million DSL lines worldwide. Learn more at www.teradyne.com/btd.