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Q47: What is backwards compatibility?
A47:Backwards compatibility implies an open architecture.which can only
be achieved with component compliance.TIA specifically states "next
generation cabling,components and mated connections shall satisfy all
requirements of their category in addition to all existing lower category
specifications."
What this means is that mating a Category 6 patch panel with a Category
5e patch cord will result in Category 5e performance. And this means that
mating a Category 6 patch panel with a Category 3 patch cord will result
in Category 3 performance. Backwards compatibility also implies vendor
independence. So, mating a Category 6 patch panel from vendor A with a
Category 6 patch cord from vendor B will result in performance that meets
Category 6 transmission requirements. Again, this is only possible with
a component compliant system.
Backwards compatibility is also required for Category 5e and Category
5 products.In fact,TIA states that If different category/class components
are to be mixed with category 6/class E components,then the combination
shall meet the transmission requirements of the lowest performing category/class
component.
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