Digital Lightwave NIC Achieves 48-Port High Density Ethernet Testing Breakthrough; Accelerating Convergence of Telcom and Datacom Testing Met by NIC Portable Platform

Business Wire, March 11, 2005

CLEARWATER, Fla. -- Digital Lightwave(R), Inc. (Nasdaq:DIGL), a leading provider of optical networking technology and test instruments, today announced the addition of 48-port high-density Ethernet to the Network Information Computer(R) (NIC(R)) product line. With new high-density Ethernet modules, the NIC product is ideally suited for the converged telecom and datacom market's testing needs. Utilizing the high-density modules, a single NIC Plus(R) instrument can perform up to 48 simultaneous Ethernet tests at 1 Gigabit.

"The NIC is a longstanding, proven leader in telecommunications applications," said Doug Gardner, Chief Technology Officer at Digital Lightwave. "With the addition of our high-density Ethernet module, customers can maximize the flexibility of the NIC, achieving independent and simultaneous testing in both telecom-centric and datacom technologies. Given today's continued network convergence and expansion of high-speed Ethernet circuits, our combined one-box solution serves this growth market segment well. The new high-density features enable us to further penetrate the datacom portion of our existing customer segments as well as expand our offerings to a broader set of end users within the Gigabit Ethernet transport community. Digital's Ethernet testing supports legacy 10/100 rates as well."

The NIC, when equipped with High-Density Ethernet, PDH and Optical Multirate modules, uniquely serves as a single-box solution applicable to both datacom and telecom markets. With optional T-Carrier, E-Carrier, SONET, SDH, OTN, and ATM, end users are enabled to perform a broad range of testing on today's most advanced networks.

Capitalizing on the independent and simultaneous testing capabilities of the NIC platform, the new Ethernet modules provide three times the port density of its previous product offerings and achieves the industry's highest Gigabit Ethernet port density configuration in a portable instrument. Customers with high density Ethernet demands will be enabled to test all ports of an interface module simultaneously as well as test multiple circuits concurrently, facilitating significant cost and time savings. High-density testing is applicable to customers in research and development, manufacturing and a variety of high-speed field applications.

The new high-density Ethernet module features eight Ethernet 10/100/1000 electrical ports and four 1GigE SFP optical ports. For higher speed requirements, NIC units can be configured with up to two 10GigE XFP optical ports. The new Ethernet testing capabilities will be available on all new NIC products or as an upgrade to existing NIC products in June of 2005.

Digital Lightwave will be showcasing the new high-density Ethernet product at Supercomm in Booth 73084, Chicago, June 7-9, 2005.

About NIC Products

Digital Lightwave's portable NICs are software-based, modular products that combine a multitude of test functions in a single integrated solution, including OTN, SONET/SDH, T-carrier/PDH, ATM, Ethernet, and Jitter analysis.

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), and NIC Plus(R) are trademarks of Digital Lightwave, Inc.