CSS - Ethernet Cable

• Ethernet Cable -  a wired network are usually connected physically to a server, modem, router, or each other with Ethernet cables.
• Each end of an Ethernet cable has a connector called an RJ45 connector
• Registered Jack 45 (RJ45) connector is a standard type of physical connector for network cables
• RJ45 connectors are used almost exclusively with Ethernet cables and networking
• GG45 connectors - are backward compatible with RJ45 connectors.
• plug - refers to the cable or male end of the connection while the term jack refers to the port or female end.
• RJ45 plugs feature eight pins to which the wire strands of a cable interface electrically.
• 8P8C - can be used with other types of connections besides Ethernet
• RJ45S - an obsolete standard that has not been in use for a long time.
• Both follow a convention of coating individual wires in one of five colors brown, green, orange, blue, or white with certain stripe and solid combinations.
• T568A and T568B - Two standard RJ45 pinouts define the arrangement of the individual eight wires needed when attaching connectors to a cable
• T568B - the more popular pinout standard
• RJ11 - used with telephone cables, for example, use six- position connectors rather than eight position connectors
• To form a tight connection between the plug and the network port, some RJ45 plugs make use of a small, bendable piece of plastic called a tab
• tab creates a tighter seal between a cable and a port on insertion, requiring downward pressure on the tab to unplug it.
• The tab prevents a cable from accidentally coming loose
• These tabs easily break when bent backward
• True - Most RJ45 connector problems occur when the wires don't follow the prescribed standard. True or false
• RJ45 Pinout T568A

  1. White-Green
  2. Green
  3. White-Orange
  4. Blue
  5. White-Blue
  6. Orange
  7. White-Brown
  8. Brown
• RJ45 Pinout T568B

  1. White-Orange
  2. Orange
  3. White-Green
  4. Blue
  5. White-Blue
  6. Green
  7. White-Brown
  8. Brown
• Straight through cable - a type of twisted pair cable that is used in local area networks to connect a computer to a network hub such as a router.
• This type of cable is also sometimes called a patch cable and is an alternative to wireless connections where one or more computers access a router through a wireless signal.
• Crossover Ethernet cable - is a type of Ethernet cable used to connect computing devices together directly.
• Crossover is most often used to connect two devices of the same type
• Straight through cables are primarily used for connecting unlike devices and crossover cables are use for connecting alike devices.
• Use crossover cables for the following cabling:

  • Switch to switch
  • Switch to hub
  • Hub to hub
  • Router to router
  • Router to PC NIC
  • PC to PC
• Use straight-through Ethernet cable for the following cabling:

  • Switch to router
  • Switch to PC or server
  • Hub to PC or server