1.3

• Twisted Pair


  Ethernet standard over copper
• What Twisted Pair Connector is this?

  RJ-45

  
• What Twisted Pair Connector is this?

  RJ-11

  
• How is TP interference mitigated?

  Twisting the cables cancels magnetic interference at every twist.
• Ethernet Standards Speed

  A) 100

  B) 1

  C) 10

  D) 55

  E) 1

  F) 100

  G) 10

  H) 10

  I) 40

  J) 25

  K) 30

  L) 100

  
• Coax


  Cable that supports both tv signals and internet signals.
• What type of Coax Connector is this?

  F-type connector

  
• What type of Coax Connector is this?

  BNC connector

  
• Direct Attached Copper


  Pre-built cables with SFP modules pre-attached.
• Why use DAC?


  Fast and cheap compared to fibre
• Twinax


  Same thing as DAC
• Active Optical Cable


  Fibre cables with pre-attached SFP modules
• Cable Termination


  The connection of the wire or fiber to a device
• T568A and T568B


  Termination methods for RJ45 and 110 Blocks
• T568A and T568B

  Straight through cable

  568A one end and T568A on the other end.
• T568A and T568B

  Crossover cable

  Connects like devices PC to PC
• What does a Fiber cable need to communicate with the device?

  SFP module

  
• Multi-mode fiber


  Typically Orange and Aqua
• Single-mode fiber


  Typically Yellow
• Difference between MMF and SMF

  A) slower

  B) faster

  C) closer

  D) farther

  E) multiple

  F) single

  G) expensive

  H) cheaper

  I) glass

  J) plastic

  
• What is EMI?

  Electrical signals and lightning immunity.
• Difference between fiber connectors

  Only the form factor; no speed differences
• What fiber connector is this?

  LC

  
• What fiber connector is this?

  ST

  
• What fiber connector is this?

  SC

  
• What fiber connector is this?

  MT

  
• Fiber contacts

  Straight cut fiber end

  A) UPC

  
• APC


  Angled cut fiber end

  
• APC > UPC

  Less light loss = better network connectivity
• How and Where is RJ-11 terminated?

  Terminated into 66 blocks and with a Crimper.
• How and Where is RJ-45 terminated?

  Terminate into 110 blocks and with Crimper.
• Media Converter


  Converts one medium to another.

  E.g., RJ45 to MMF or SMF

  
• What is a transceiver?


  End of a fibre cable.

  
• What is a transceiver used for?

  Allows fiber to connect to networking devices.
• Transceiver Types

  • SFP = 1G

  • SFP + = 10G

  • QSFP = 4Gbps

  • QSFP+ = 40Gbps

  • QSPF28 = 100Gbps
• Breakout cable


  Allows networking devices with different speeds to connect

  
• Patch Panel or 110 block


  Organize network cables.

  
• Punchdown block


  A permanent termination point for network cables
• Krone


  European version of 110 block
• Ethernet and Fiber Standards

  Refer to the Onenote page

  Answer is the number 1 1