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Fujitsu Delivers Japan's First 1.76Tbps DWDM System
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Fujitsu Limited

Fujitsu Delivers Japan's First 1.76Tbps DWDM System

- World's Largest-capacity Commercially Available
Long-haul Optical Transport System Installed for
Crosswave Communications' Tokyo-Nagoya-Osaka Backbone -

Tokyo, April 3, 2002 -- Fujitsu Limited today announced that it has delivered its FLASHWAVE® 7700 dense wavelength division multiplexing (DWDM) long-haul optical transport system to Crosswave Communications Inc. for use in the company's Tokyo-Nagoya-Osaka backbone network. Fujitsu's FLASHWAVE 7700 is the world's highest capacity commercially available DWDM system, capable of transmitting 1.76 terabits per second (Tbps) over vast distances - without regeneration - and the installation for Crosswave Communications is the first FLASHWAVE 7700 deployment in Japan.

The FLASHWAVE 7700 is a next-generation DWDM transmission and optical add/drop platform that provides up to 176 channels, each capable of carrying 10 gigabits (billion bits) per second of traffic. The system uses 88 channels in each of two bands of the transmission spectrum, the C and L bands, using 50GHz spacing between each channel. This 1.76Tbps transmission capacity is equivalent to simultaneously distributing MPEG4 coded high-definition video to approximately 34,000 users. The system also features a LightGuard (*1) function and Automatic Optical Level Control Technology (*2) to maximize network reliability and data transmission quality, as well as to shorten the time required for system start-up and wavelength additions during operation to one-tenth that for previous systems.

Crosswave Communications, with a network linking its data centers in Japan, offers a full range of network services, focusing in particular on wide-area LAN and high-speed backbone service. On April 1, the company began a commercial rollout of its new Gigabit Ether Backbone Service, and the FLASHWAVE 7700 platform is being used to strengthen the approximately 1,400-km (875-mile) backbone network that links its data centers in Tokyo, Nagoya, and Osaka to handle the expected increase in data traffic.

The FLASHWAVE 7700 platform was chosen based on Fujitsu's established track-record as a top optical transmission systems provider in the North American market and its market-leading innovations in this arena. Fujitsu is optimistic that the successful Crosswave installation will help the company capture a significant share of the market in Japan, where demand for these systems is growing.

(*1) LightGuard:
Redundant double route function. Instantly switches traffic to a 2nd backup route in case of optic fiber troubles for maximum reliability.

(*2) Automatic Optical Level Control Technology:
Technology where optical level of each wavelength is automatically adjusted. By controlling 176 discrete wavelengths to a uniform level, high quality and stabilized transmission is realized. Also, because the optical level of each wavelength is automatically controlled,the time required for system start-up and recalibration when adding wavelengths during operation are shortened drastically.

** All company/product names mentioned may be trademarks or registered trademarks of their respective holders and are used for identification purpose only.

About the FLASHWAVE 7700

The FLASHWAVE 7700 platform was originally marketed internationally under the name FLASHWAVE OADX, and in Japan as FW OADX, but was renamed in January as part of a brand-strategy program. It is a dense wave-division multiplexing system for long-haul communications that can relay 1.76Tbps, the highest commercially available capacity in the world. With its optical add/drop platform and cutting-edge high- density wave-division multiplexing, it multiplexes together 176 discrete wavelengths, or channels, each carrying 10Gbps. Using both C-band and L-band transmission bandwidths, and 50 GHz channel spacing, 88 channels on each band can be multiplexed together to create the world's highest transmission capacity.

The highly flexible FLASHWAVE 7700 DWDM platform, which covers applications in networks ranging from low and middle channel count to ultra-high capacity, high channel count configurations over middle, long and ultra-long-haul distances on a single platform, helps significantly reduce costs. Further cost savings are made possible by the equipment's unique self-tuning capability, which enables much faster provisioning of new services and additional capacity, and its small footprint, power conservation and system reliability.

About Crosswave Communications
Crosswave Communications Inc. offers broadband data communication services on Japan's first nationwide fiber-optic network specifically designed and dedicated to data traffic. Crosswave was established in October 1998 by Internet Initiative Japan Inc. (IIJ), Sony Corporation and Toyota Motor Corporation with the goal of providing advanced, high-speed, cost-effective, end-to-end data communications services to customers in Japan and to take advantage of market growth and demand for broadband data communications networks.

About Fujitsu
Fujitsu is a leading provider of Internet-focused information technology solutions for the global marketplace. Its pace-setting technologies, best-in-class computing and telecommunications platforms, and worldwide corps of systems and services experts make it uniquely positioned to unleash the infinite possibilities of the Internet to help its customers succeed. Headquartered in Tokyo, Fujitsu Limited (TSE:6702) reported consolidated revenues of 5.48 trillion yen for the fiscal year ended March 31, 2001. Internet:

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[Press Contacts]
Takehiro Hayashi, Scott Ikeda
Fujitsu Limited, Public and Invester Relations
Tel: +81-3-3215-5259 (Tokyo)
Fax: +81-3-3216-9365
Mail Press Inquiries

[Customer Contact]
Network Solutions Div.
Global Business Group
Fujitsu Limited
Tel: +81-3-5210-5348 (Tokyo)
Fax: +81-3-5210-5391

Please understand that product prices, specifications and other details are current on the day of issue of the press release, however, may change thereafter without notice.
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