Shaanxi Tonghui selects Cisco metro DWDM solution for high-speed fiber-optic network in Xi'an

Sept. 24, 2001--Shaanxi Tonghui Network Communications Co., Ltd. announced that it has selected Cisco ONS 15200 Metro DWDM systems, a wavelength-to-the-building metro DWDM solution, for the high-speed fiber-optic network infrastructure of the Xi'an High-Tech Development Zone.

Shaanxi Tonghui Network Communications Co., Ltd. (TNC) announced that it has selected Cisco ONS 15200 Metro DWDM systems, a wavelength-to-the-building metro DWDM solution, for the high-speed fiber-optic network infrastructure of the Xi'an High-Tech Development Zone. TNC's decision marks the first deployment of the ONS 15200 Metro DWDM system in China.

Covering nearly ten square kilometers and accommodating nearly 3,000 enterprises, the Xi'an High-Tech Zone is a national high-technology development area in Xi'an, hosting information technology and telecommunications manufacturing, assembly, distribution and software firms. As a part of its effort to upgrade the zone's communications infrastructure, TNC has chosen Cisco ONS 15200 Metro DWDM products in order to derive the full benefit of DWDM technology, and the system's unique wavelength to the building architecture, including optimal fiber-optic resource usage, optical wavelength protection mechanisms, and branch interface rate protocols.

The self-healing, multiple-access backbone network uses 96 line fiber-optic cables (using the G.652 standard), two knots, and five exchange boxes. Current plans are to use 70 lines to provide access service, with 24 lines held in reserve. As a change from previous designs, with no major investment in new equipment, service capacity is enhanced while overall cost is reduced.

Dense Wavelength Division Multiplexing (DWDM), originally used in long-distance backbone transport, is now also used in Metropolitan Access Networks (MAN) to alleviate bandwidth bottlenecks. Designed to achieve access among dense metropolitan areas through network "knots," enterprises are now using the same technology to build high-speed networks within their own communities. Cisco's ONS 15200 Metro DWDM products are suitable for access and transmission applications both in expanding cities and for shorter distances, with the service provider being able to add paths conveniently, channel by channel, when demand for capacity increases.

Delivering a wavelength-to-the-building metro DWDM solution, the ONS 15200 supercharges wavelength services with transport flexibility to achieve radical economics for service providers. The ONS 15200 line includes the ONS 15252, ONS 15201, and ONS 15216 platforms. The ONS 15200 Metro DWDM system enables service providers to drop single channels, aggregates wavelength and subwavelength services, and supports metro and regional metro ring, star and point-to-point topologies. The ONS 15200 is part of Cisco's unrivaled IP+Optical solution, combining the intelligence of IP services with optical capacity to deliver profitable economics to service providers.

Cisco provides an extensive portfolio of optical networking equipment through its ONS 15000 product line. This is the first Cisco ONS 15200 deployment in China.

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