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US 5,493,071 AGranted
Communication cable for use in a plenum
AssigneeBerk-Tek LLC
InventorKerry Newmoyer
Life of this patent
Estimating the term…
Abstract
A communication cable includes a plurality of twisted pairs of electrical conductors, each electrical conductor being surrounded by a layer of plenum rated insulation. The cable also includes at least one additional twisted pair of electrical conductors, each electrical conductor thereof being surrounded by a layer of non-plenum rated insulation.
Claims33
A communication cable for use in a plenum, said cable comprising:
- a plurality of twisted pairs of electrical conductors, each electrical conductor of said plurality of twisted pairs having a surrounding layer of electrical insulation formed from a first material;
- at least one additional twisted pair of electrical conductor, each electrical conductor of said at least one additional twisted pair having a surrounding layer of electrical insulation formed from a second material, said second material being different from said first material.
A communication cable for use in a plenum, said communication cable comprising:
- a first plurality of twisted pairs of electrical conductors having a first insulating material about each electrical conductor thereof;
- and
- a second plurality of twisted pairs of electrical conductors having a second insulating material about each electrical conductor thereof, said second plurality of twisted pairs making up no more than half the total number of twisted pairs of electrical conductors.
Dependencies are inferred from the claim text.