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GIGAlite™ Optical Fiber Products for Data Center Applications Berk-Tek, New Holland, PA - October 6, 2004 - Fiber optic and copper cabling technology and solutions leader Berk-Tek, A Nexans Company, today announced the launch of their enhanced link loss budget performance guarantees for their family of GIGAliteTM enhanced bandwidth 50µm laser optimized multimode fiber (LOMMF) product line. The performance guarantees, which are length dependant and vary according to the grade of 50µm GIGAlite fiber used, allow the data center cabling infrastructure to consume more of the total system loss budget than the current Ethernet and Fibre Channel standards specify. "To date, the primary advantage associated with enhanced bandwidth 50µm fiber has been its ability to extend the transmission distance capabilities of economical 850nm [Vertical Cavity Surface Emitting Laser] VCSEL based transceivers in a typical LAN or campus installation," said Todd Harpel, Director of Marketing at Berk-Tek. "Berk-Tek is the first company to present this superior performance guarantee which presents a breakthrough in short-run fiber optic cabling systems, like those in data centers or a Storage Area Networks (SAN)." This can be especially important when designing a data center cabling infrastructure that will be expected to support network migration from 1 Gbps Ethernet or 2 Gbps Fibre Channel to 10 Gigabit Ethernet or Fibre Channel. Cabling System loss budgets - the amount of cable and connector loss allowed between active equipment in a network - shrink by as much as 50% when migrating from 1 Gbps to 10 Gbps Ethernet over 50µm MMF using 850nm transceivers. The enhanced Differential Mode delay (DMD) performance of Berk-Tek's GIGAlite optical fiber allows an increase in the loss budget beyond the IEEE specifications while guaranteeing successful Ethernet and Fibre Channel transmission. For example, IEEE 802.3ae specifies the maximum distance for a standard 50µm (500/500 MHz.km) MMF link running 10Gb/s Ethernet at 850nm (10GBASE-SR) at 82-meters with a cable and connectivity link loss budget of 1.80 dB. Berk-Tek's GIGAlite-10XB optical fiber extends the same link's loss budget to 4.70 dB. The link loss performance enhancement of all three GIGAlite 50µm multimode solutions allows network designers to utilize a more flexible cabling system architecture. The use of multiple connection points such as intermediate cross-connects, or ribbonized Adventum™ cables terminated with MPO style connectors and cassettes that would normally introduce connection losses that would exceed the IEEE specifications for standard 50µm multimode fiber. Berk-Tek's GIGAlite optical fiber enables the use of these products for added network flexibility and peace of mind. Berk-Tek's GIGAlite Enhanced Bandwidth 50µm multimode fiber product line includes GIGAlite, GIGAlite-10 and GIGAlite-10XB in a variety of cable constructions as well as pre-terminated cable solutions. |
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