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Monday, August 28, 2017

Why Twisted Cable are Twisted ?



Twisted Pair Cable was invented by Graham Bell. As From Name anyone can Easily Understood
This is a type of Cable Which is Twisted on other Cable. But the question is why they are Twisted.
The Reason behind twisting is Cancelling out ,Electromagnetic Interference from External Sources
and Electromagnetic radiation from UTP (unshielded twisted pair cable ) cable.

  • UNSHIELDED TWISTED PAIR
UTP Cable are used for Networking  and Traditional Telephone. There are Seven type of UTP Cable,


      UTP CATEGORY
 DATA RATE
 (mb/s)
     MAX-      LENGTH 
 CABLE-TYPE
 APPLICATION
  CAT 1
 1
 100m
 Twisted pair
old-Telephone
  CAT
 4
 100m
 Twisted pair
 Token Ring
  CAT 3
 10
 100m
 Twisted pair
Token Ring,10-base-T 
  CAT 4
 16
 100m
 Twisted pair
 Token Ring
  CAT 5
 1Gb/s
 100m
 Twisted pair
 Token Ring, Ethernet,FE
  CAT 5e
 10Gb/s
 100m
 Twisted pair
 Ethernet,FE,GbE
  CAT 6
 10Gb/s
 100m
 Twisted pair
  GbE, 10-    GE(55m)
  CAT 6a
 10Gb/s
 100m
 Twisted pair
 GbE, 10-    GE(55m)
  CAT 7
 10Gb/s
 100m
 Twisted pair
 GbE, 10-    GE(100m

            
 NOTE- CAT 5e is most popularly used cable in all categories.

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