JDSU Introduces Industry's Most Complete DSL Field Test Instrument

JDSU today announced the most complete set of DSL test functionality on the market in a handheld test unit, including full functionality for testing across all available frequencies � ADSL2, ADSL2+, VDSL and VDSL2.

Milpitas, Calif. and Chicago, June 18, 2007 � JDSU today announced the most complete set of DSL test functionality on the market in a handheld test unit, including full functionality for testing across all available frequencies � ADSL2, ADSL2+, VDSL and VDSL2. By providing a 30 MHz (VDSL2) copper test option for the test needs of field technicians who install and maintain VDSL access networks, the HST-3000 enables the deployment of higher bit-rate triple play services, including IPTV and HDTV.

The HST-3000, an all-in-one handheld tester for more efficient broadband access network service installation and maintenance, will be showcased at NXTComm 2007 in Chicago, June 18-21 (booth 5315).

According to the DSL Forum, in 2006 the number of DSL subscribers worldwide grew by more than 30 percent, or almost 185 million at the end of the calendar year. Worldwide, DSL remains the most popular broadband access technology with a 65.7% market share.

"DSL continues to evolve to meet the needs of broadband users worldwide, and JDSU has the most complete DSL test set on the market in the HST-3000," said Jerry Gentile, general manager of JDSU's Telecommunication Field Services (TFS) Communications Test and Measurement group. "As DSL test needs expand in the access network, the HST-3000 will continue to provide in a single instrument a complete set of triple-play service test capabilities that keep it ahead of the competition."

Telecommunications network operators worldwide have adopted the HST-3000 because it provides a broad set of capabilities engineered for the rapid, reliable and efficient deployment of broadband services. In addition to its complete set of DSL test features, the HST-3000 is the only handheld telecommunications service tester licensed to support Nortel's UniStim VoIP protocol, providing users the ability to troubleshoot and test the features and capabilities of Nortel's IP desktop telephones, and also provides licensed test support for vendor-specific versions of IPTV such as MSTV.

About the JDSU HST-3000n
The JDSU HST-3000 is a modular, hand-held test tool that scales to address a broad spectrum of different access network technology testing needs, from the physical layer to the application layer. It was the first hand-held field test tool to provide basic turn-up and troubleshooting of VoIP deployment, supporting physical layer analysis through packet metrics, signaling analysis and voice quality determination. HST-3000 capabilities allow packet capture of live VoIP calls, including VoIP call storage and an integrated FTP capability to send captured VoIP calls to be analyzed by JDSU's PVA-1000 software. The HST was created to improve efficiency and lower the costs of installing, maintaining, and troubleshooting business and residential services and networks. The HST-3000 combines copper, voice and data service testing features with unparalleled process automation capabilities in a lightweight, battery-operated unit.

By adding ADSL2+, VDSL and IPTV test options, the HST-3000 provides a comprehensive and industry-leading portable test solution for triple-play service deployments and extends its capabilities for installation and maintenance crews who are responsible for the turn-up and troubleshooting of these new services.

About JDSU
JDSU (NASDAQ: JDSU; and TSX: JDU) is committed to enabling broadband & optical innovation in the communications, commercial and consumer markets. JDSU is a leading provider of communications test and measurement solutions and optical products for telecommunications service providers, cable operators, and network equipment manufacturers. Furthermore, JDSU is a leading provider of innovative optical solutions for medical/environmental instrumentation, semiconductor processing, display, brand authentication, aerospace, defense and decorative applications. More information is available at www.jdsu.com.

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Media: Nick Rowan, Public Relations, 240-404-1924 or nick.rowan@jdsu.com

Investors: Jacquie Ross, Investor Relations, 408-546-4445, or

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