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Q:What is the difference between enhanced category 5e cable rated for
400 MHz and category 6 cable rated for 250 MHz?
A:Category 5e requirements are specified up to 100 MHz. Cables can be
tested up to any frequency that is supported by the test equipment, but
such measurements are meaningless without the context of applications
and cabling standards. The category 6 standard sets minimum requirements
up to 250 MHz for cables, connecting hardware, patch cords, channels and
permanent links, and therefore guarantees reasonable performance that
can be utilized by applications.
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