Copper UTP

Copper Untwisted Pair cables (ethernet cables)

• Can support Power over Ethernet (PoE)
• can be wired to an RJ-45 connector either as straight-through or crossover

Maybe Not CCNA Relevant

• There are 4 wire pairs in a UTP cable, with each cable in a colored pair either solid or striped
  • Orange
  • Blue
  • Green
  • Brown
• In traditional Ethernet (10BASE-T and 100BASE-TX, or Ethernet and Fast Ethernet), only TWO out of the four available pairs are used for data transfer
• In 1000BASE-T (Gigabit) and above, all 4 pairs are used

Metadata

OSI or TCP/IP Layer

CCNA Exam Topic

Contributors

Sources

What's correct order of wires & pins for CAT5/CAT6/CAT7/CAT8/network patch/Ethernet cable (How to make RJ45 cable etc.) (T568A vs T568B which one to use?) (What is 8P8C?) < Blog-D without Nonsense