Hitachi to supply DWDM for Global Crossing's North American network

Hitachi Telecom (USA), Inc. announced that Global Crossing. Ltd. (NYSE: GX) will deploy Hitachi's AMN 6100 Ultra-Long Haul (ULH) Dense Wavelength Division Multiplexer System in their North American Crossing Network Overbuild.

Hitachi Telecom (USA), Inc. announced that Global Crossing. Ltd. (NYSE: GX) will deploy Hitachi's AMN 6100 Ultra-Long Haul (ULH) Dense Wavelength Division Multiplexer System in their North American Crossing Network Overbuild. Global Crossing's network will provide fast turn-up for multiple lambda services on a national level for a competitive edge. It will support multiple customer needs, thus generating new revenue services and it will support massive scalability to respond to rapidly growing IP and data traffic demands.

Deployment in more than 90 nodes throughout Global Crossing North American network will begin in the first quarter of next year (2001). When deployed with the Hitachi AMN 5192 4-Fiber BLSR or the Hitachi AMN 4100 Transmux systems (which are already standardized for use within their network) Global Crossing can now flexibly offer OC-3, OC-12 or OC-48 circuits over its DWDM backbone to their customers, fully utilizing the 10 Gb/s per channel bandwidth.

The carrier is expanding its ability to sell wavelengths (OC-12 to OC-192�i.e., communication channels�to ISPs and any other customer that need a dedicated communication path at these rates. Hitachi's network solution offers carriers very large channel counts for optical networking over ultra-long haul distances.

*Hitachi's 128-channel 10Gb/s DWDM System offers an industry-leading channel capacity of up to 512 OC-48 channels or 2048 OC-12 channels.

*Hitachi's AMN 6100 DWDM system can be configured for standard (up to 500km), Ultra Long Haul (ULH) (up to 1200km) and Super ULH (up to 8000km) applications within the same network on a span-by-span basis. Thus, Hitachi's total network solution is optimized for every specific span within Global Crossing's network. Global Crossing does not need to employ more complex or expensive technology on spans that don't require it.

*Each site's traffic demands are flexibly met as Hitachi's modular system allows optical add/drop, pass-thru and optical switching modules to be applied on a per-channel or per-band basis.

About Hitachi's Advanced Multiservices Network Product Family:

Hitachi's AMN family of advanced optical networking products is designed to provide carriers with high bandwidth, flexible transport solutions whether the application is SONET, IP, ATM or any other communications protocol. The AMN Product Family provides:

*Most scalable system (ultra long-haul to super ultra-long-haul; high channel count�channel count remains constant regardless of distance, highest performance available over common fiber types)

*A complete and flexible system solution for carriers that need to build ultra high capacity backbone networks

The AMN family is a "premier" 10G system. AMN products are designed for 10G regardless of fiber type, distance, mix of services (protected such as voice & private line; unprotected such as best effort IP), mix of lower speed channels or total channel count.

Most efficient system (every channel always carries 10G and is fully utilized even when inputs are OC-12 or OC-48).

Operating under a single element management system for maximum control efficiency, Hitachi's AMN family currently includes the AMN 6100 DWDM system, the AMN 4100 Transmux, and the AMN 5192 next-generation SONET transport system. Hitachi's AMN 5192 10 Gb/s SONET and AMN 4100 Transmux terminals are installed throughout the United States in Global Crossing's North American Crossing backbone Network (the first coast-to-coast OC-192 network).

About Hitachi's AMN 6100 DWDM System:

Hitachi's AMN 6100 DWDM system offers in a single platform a flexible DWDM system. Hitachi's ULH DWDM system architecture is based on a modular band-by-band design with patented Automatic Gain Control and also applies techniques like Gain Tilt Compensation and Low Noise Optical Amplifiers. This enables seamless upgrades without service interruption for future addition of new capabilities (i.e., Super ULH) and additional capacity (i.e., L-band and 50Ghz). The system provides multiple rate inputs including OC-12, OC-48 and OC-192, channel counts of up to 128 OC-192 channels, 512 OC-48 channels, or 2048 OC-12 channels (or a combination of rates), and ultra-long-haul capabilities. The ability to provide mixed rates�especially large numbers of OC-12 and OC-48 channels�multiplexed onto an OC-192 backbone opens new revenue opportunities for service providers to meet the increasing demands of customers for these bandwidth levels.

About Hitachi's AMN 5192 SONET Transport System:

Hitachi's next generation AMN 5192 transport system is designed to address a full range of applications from long haul transmission to metropolitan rings. The system supports growth from 10 Gb/s and beyond through Dense Wavelength Division Multiplexing. Hitachi's products are managed by a common element management system, streamlining the support issues in the increasingly complex network. The four-fiber bi-directional line switched ring configuration provides protection against transport network outages due to a fiber cut or failure at one node. In the event of such a failure, traffic is automatically reversed in direction around the ring within milliseconds. Four-fiber BLSR is generally favored over two-fiber BLSR because of its relative higher capacity and increased reliability offered by the larger number of fibers. Hitachi's AMN 5192 is the only 4F BLSR system to offer a full 20 Gb/s drop capacity per node, and Protection Channel Access, allowing best-effort IP traffic to be carried on the SONET protection channel, effectively boosting the capacity to 40 Gb/s).

About Global Crossing:

Global Crossing Ltd. (NYSE: GX) is building and offering services over a global IP-based fiber optic network, which will have more than 101,000 route miles, serving five continents, 27 countries and more than 200 major cities.

About Hitachi:

Hitachi Telecom (USA), Inc., a subsidiary of Hitachi America, Ltd., develops, manufactures and markets telecommunications equipment for the U.S. market. The company offers ultra high-speed optical networking equipment such as SONET and DWDM systems, as well as customer premises products such as PBXs.

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