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
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
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.
Takehiro Hayashi, Scott Ikeda
Fujitsu Limited, Public and Invester Relations
Tel: +81-3-3215-5259 (Tokyo)
Network Solutions Div.
Global Business Group
Tel: +81-3-5210-5348 (Tokyo)
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.