Milpitas, California and Chicago, June 6, 2006 – JDSU today expanded the industry’s most complete Metro Ethernet test portfolio with several new products addressing one of the industry’s fastest-growing technologies.  JDSU’s Ethernet portfolio is the most comprehensive because it includes the full range of Ethernet instruments, systems and software required by customers today and provides analysis of all seven layers of Metro Ethernet services. It will be showcased at GlobalComm 2006 in Chicago, June 4-8, (booth 67040).

Communications service providers and equipment manufacturers face fundamental challenges in efficiently bringing carrier-grade Metro Ethernet services to market, beginning in labs – where verifying network element reliability, interoperability and quality of service (QoS) are paramount – and in the field where the need to reduce installation times, decrease mean-time-to-repair (MTTR) costs, enable efficient maintenance and reduce the overall technology learning curve are a priority.

The new elements of JDSU’s Metro Ethernet test portfolio include:

• Ethernet test capabilities for the HST-3000, the most complete all-in-one triple play access test platform available.  The new Ethernet module, designed for the technician who needs to test next-generation IP-based services with a small budget but also requires an expandable platform, supports electrical Ethernet (10/100/1000) and optical GigE testing from a single module.  The HST-3000 Ethernet module contains a rich feature set for testing from the physical layer up to the application layer (VoIP and IPTV).  This unique combination of test functionality in one Ethernet module makes the HST-3000 the premier tool for the rollout of next-generation Metro Ethernet services.  The HST-3000 is also designed for interoperability with the NetComplete Metro Ethernet Service Assurance Solution. 
• The SmartClass Ethernet single-purpose test tool, an economical, hand held, fully functional test instrument capable of completely qualifying Ethernet and IP circuits.  The SmartClass Ethernet includes functionality required to test 10/100/1000 electrical, GigE optical Ethernet and IP circuits.  The SmartClass Ethernet meets the needs of technicians and installers who do not require an expandable solution or deep triple play services testing.  Suitable for less experienced field technicians, the SmartClass Ethernet is an easy-to-use, rugged tester that fits well within field tool budgets.  The SmartClass Ethernet is designed for interoperability with the NetComplete Metro Ethernet Service Assurance Solution.
• The addition of a network monitoring application, called Netmon, to the QT-600 IP test head, part of JDSU’s NetComplete™ Metro Ethernet Service Assurance Solution.  With the addition of Netmon, the QT-600 is able to combine two critical pieces of QoS management – network monitoring and service monitoring – which give service providers the highly accurate picture needed to determine what is causing, and how to fix, service degradation.  Netmon rounds out the triple-play test and monitoring capability of the QT-600 by allowing service providers to monitor, test or troubleshoot at full line rate (up to a Gigabit Ethernet, or GigE, link capacity) their Ethernet infrastructure carrying traffic such as VoIP or IPTV.
• An upgrade to the MTS/T-BERD 8000 Transport module to support simultaneous multi-circuit testing, next-generation networks based on Q-in-Q (also known as VLAN stacking), VPLS and MPLS technologies, and 1G/2G Fibre Channel (FC) field test applications.  The Transport module is a portable field Ethernet tester that offers the only all-in-one test solution for SONET, SDH, PDH, T-carrier, Ethernet/IP, FC and MPLS networks and includes packet jitter.  The product is designed to meet the needs of operators deploying and maintaining transport and data services as well as metro network elements.

“The emergence of triple play services, especially IPTV, is driving an accelerated market need to ensure reliable Metro Ethernet networks,” said Helmut Berg, senior vice president of JDSU’s Test and Measurement group.  “Unlike existing competitive solutions, JDSU provides a comprehensive Metro Ethernet portfolio which offers all of the key problem-solving functions for metro Ethernet applications.”

Additional product lines included in JDSU’s Metro Ethernet portfolio include: the DA-3400 (winner of the 2006 IT Week’s Editor’s Choice Award) and DA-3600A data analyzers for carrier field service support groups requiring deep packet access to troubleshoot difficult Ethernet service problems; the ONT-50, ONT-506 and ONT-512 optical network testers for development and verification of converged network elements and infrastructure found in transport technologies from the physical layer up to layer 3; and the FST-2802 field services tester, a widely accepted platform solution that is the only handheld field tool currently on the market that enables service providers to provision, install and maintain cost-effective testing of Ethernet and Fiber Channel services from one test module.

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 and defense applications, and decorative.  More information is available at http://www.jdsu.com/.

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The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Act of 1934. Such forward-looking statements include, but are not limited to, any statement or implication that the products described in this press release (i) will be successfully introduced or marketed, (ii) will be qualified and purchased by our customers, or (iii) will perform to any particular specifications or performance or reliability standards. Such forward-looking statements involve risks and uncertainties that, if realized, could materially impair the Company's results of operations, business, and financial condition. These risks and uncertainties include, but are not limited to, (a) the failure of the products (i) to perform as expected without material defects, (ii) to be manufactured at acceptable volumes, yields, and cost, (iii) to be qualified and accepted by our customers, and (iv) to successfully compete with products offered by our competitors, and (b) factors discussed from time to time in reports filed by the Company with the Securities and Exchange Commission. The forward-looking statements contained in this news release are made as of the date hereof, and the Company does not assume any obligation to update or qualify any of the statements made herein. Source: JDSU.

Contacts
Media: Nick Rowan, Public Relations, 240-404-1924 or nick.rowan@jdsu.com
Investors: Jacquie Ross, Investor Relations, 408-546-4445 or investor.relations@jdsu.com