IBDN 1200 Cable Exceeds New Category 5e Requirements.POINTE-CLAIRE, QUEBEC--(BUSINESS WIRE)--July 14, 1999-- The TIA/EIA standards body is currently working on a Category 5e draft which includes more stringent performance requirements than specified for Category 5 and additional transmission parameters needed for new high-speed applications. The additional parameters include PSNEXT (Power Sum NEXT) In a four-pair cable, it is the algebraic sum of near end crosstalk (NEXT) of three pairs as they affect one pair. See NEXT. , ELFEXT (Equal Level FEXT) A calculation that normalizes the results of a FEXT measurement, because it takes attenuation into account. It is derived by subtracting the attenuation of the interfering pair from the far end crosstalk (FEXT) that it has caused in the interfered , PSELFEXT PSELFEXT Power Sum Equal Level Far-End Cross-Talk and Return Loss. The most recent draft (SP-4195-B Draft 11a, dated May 21, 1999) has specified a further requirement for Return Loss. Category 5e is recommended by IEEE (Institute of Electrical and Electronics Engineers, New York, www.ieee.org) A membership organization that includes engineers, scientists and students in electronics and allied fields. as the cabling choice for all new installations. Originally, the Category 5e standard was expected to be published in the fall of 1998 but problems with channel and link Return Loss failures inhibited its approval. Return Loss is a measure of the reflected signal due to impedance mismatches of the components in a channel or link. Impedance mismatches between patch cords and horizontal cables was the main reason for the channel and link return loss failures. TIA (1) (Telecommunications Industry Association, Arlington, VA, www.tiaonline.org) A membership organization founded in 1988 that sets telecommunications standards worldwide. It was originally an EIA working group that was spun off and merged with the U.S. decided to keep the same channel and link return loss requirements but specified new component return loss requirements. The cable return loss requirement at 100 MHz was increased by 3 dB from 17.1 dB to 20.1 dB. NORDX/CDT (NYSE NYSE See: New York Stock Exchange :CDT) is pleased to announce that the IBDN IbDN Internet-Based Distributed Navigation IBDN Integrated Building Distribution Network (US West) 1200 Cable meets and exceeds the requirements of the draft TIA standard for Category 5e. Because NORDX recognizes that standards are continuously evolving, all IBDN components and end-to-end systems are designed with significant additional headroom and margin, so that new versions of a product are not necessary each time a draft standard is updated. In fact, the IBDN 1200 Cable has exceeded the current Category 5e requirements since its introduction in March 1998. That is, all IBDN 1200 Cable that has been installed since March 1998 or is in inventory at distributors meets the latest Category 5e requirements including the new return loss requirements. One of the many benefits of installing an end-to-end IBDN Certified System is the peace of mind in knowing that NORDX/CDT provides a lifetime application warranty no matter what requirements are adopted for a standard. For further information on the IBDN 1200 Cable and our complete range of IBDN products, please contact your local Sales Manager or call NORDX direct at 1-800-262-9334. |
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