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2.1.4 CABLE USED IN ETHERNET NETWORKS. FIBER OPTIC CABLING AND ITS…

- - - - used in Ethernal LANs
      - Common type for UTP:
        
        CAT 3 - most used in voice communication (phone lines)
        
        CAT 5 - used in data transmission (100-1000mb/s)
        
        CAT 6 - used in data transmission (1000mb/s - 10gb/s)
        -have separator in between each pair of wires allowing it to function in higher speed
      - contains 8 wires that is twisted into four color coded pairs and wounded inside a jacket
      - RJ-45
        -Connectors
        
        -Sockets
      - TYPES OF UTP CABLE
      - UTP TESTING PARAMETERS
        
        Wire Map
        
        Cable length
        
        Signal lost due to attenuation
        
        Crosstalk
    - - COAXIAL CABLE
  - - - BUFFER
        - help protect the core and cladding from damage
      - CLADDING
        - act like a mirror by reflecting light back into the core of the fiber - keeps light in the core as it travels down the fiber
      - STRETHENING MATERIAL
        - prevents the fiber cable from stretching when it is being pulled - It is made from the same material used in the making of bulletproof vests
      - CORE
        - light transmission elements at the center of the optical fiber (light pulses travel through the core) - silica or glass
      - JACKET (PVC)
        - protects fiber against abrasion, moisture etc. - composition depends on the cable usage
      - TYPES OF FIBER MEDIA
        
        SINGLE-MODE
        
        MULTI-MODE
    - - COMMON FIBER PATCH CORDS
        
        LC-LC Singlemode Patch Cord
        
        ST-LC Multimode Patch Cord
        
        SC-SC Multimode Patch Cord
        
        SC-ST Singlemode Patch Cord