Digital Lightwave Expands European Distribution Network With the Addition of TR Instruments; Company Increases Distribution Channel Partnerships to Thirty Five

Business Wire, March 23, 2005

CLEARWATER, Fla. -- Digital Lightwave(R), Inc. (Nasdaq:DIGL), a leading provider of optical networking technology and test instruments, today announced the continued expansion of their European sales distribution network with the addition of TR Instruments in the Czech Republic. TR Instruments, formed in 1991, sells and supports Digital Lightwave's portable and embedded test equipment product lines exclusively in the Czech Republic and Slovakia.

"Our coverage of Europe has been broadly enhanced, in support of the growth opportunities we're experiencing in this regional market," said Kjell Axelson, Director of Sales, Eastern Europe. "By providing sales and Tier 1 technical support in region with TR Instruments, we've streamlined and enhanced our capability to cater to the demand for our industry leading products and technologies."

To best serve global service providers, equipment manufacturers and enterprise customers, Digital Lightwave has partnered with over 35 international distributors, including 2 authorized service centers, at strategic locations throughout the world.

Digital Lightwave's distribution channel partners have existing, longstanding telecom relationships within their respective territories. Additionally, distributors provide Tier 1 technical support for Digital Lightwave products.

European network providers have been early implementers of Next Generation Network (NGN) technologies creating a strong marketplace for Digital Lightwave's Network Information Computer(R) (NIC(R)) and Network Access Agent(R) (NAA(R)) products featuring Generic Framing Procedure (GFP), Link Capacity Adjustment Scheme (LCAS), and Virtual Concatenation (VCAT).

About Digital Lightwave

Digital Lightwave, Inc. provides the global communications networking industry with products, technology and services that enable the efficient development, deployment and management of high-performance networks. Digital Lightwave's customers -- companies that deploy networks, develop networking equipment, and manage networks -- rely on its offerings to optimize network performance and ensure service reliability.

Editor's Note: Digital Lightwave(R), Network Information Computer(R), NIC(R), Network Access Agent(R), and NAA(R) are registered trademarks of Digital Lightwave, Inc.