Network Devices

• Twisted Pair cables are used for telephone communications and ethernet networks
• Pairs of copper wires are encased in color-coded plastic insulation
• Outer Jacket protects the bundles of twisted pair cables
• Unshielded Twisted Pair relies solely on the cancellation effect produced by the twisted pair
• Shielded Twisted Pair has each pair wrapped in metallic foil to shield the wires
• Coaxial Cable is a copper-colored cable surrounded by heavy shielding
• Coaxial Cable is used to connect computers to the rest of the network
• Thicknet (10BASE5) is used in networks operating at 10 mbps with a length of 500 M
• Thinnet (10BASE2) is also used in networks operating at 10 mbps with a length of 185 M
• RG-59 is commonly used in cable television in the U.S
• RG-6 has more bandwidth and less susceptibility to interference
• Fiber Optic Cable transmits information using light through glass or plastic conductors
• Multi-mode Fiber Optic Cable has a thicker core and can use simpler light sources such as LEDs
• Single-Mode Fiber Optic Cable has a very thin core and uses lasers as a light source
• Ethernet Cable has 8 colored coded wires twisted into four pairs, each with a color theme
• Straight-through Ethernet Cable is used in LANs to connect a PC to a network hub and router
• A Crossover Cable can be used to connect two network devices directly
• Materials and tools used for making Ethernet cables include Ethernet cable category 5e, RJ45 crimpable connectors, RJ45 crimping tool, wire cutter, stripper or pliers
• To make Ethernet cables, cut into the plastic sheath 1 inch from the end, unwind and pair similar colors, straighten the wires, follow the correct color order, make a straight cut across the wires, push wires into the connector, crimp the cable, and test the cables before installing them