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OCR ICT unit 1 > Cabling > Flashcards

Flashcards in Cabling Deck (8)
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1
Q

What is twisted pair cabling?

A

For short and medium length connections because of lower costs compared to optical fiber.
To reduce crosstalk two insulated copper wires are twisted around each other.

2
Q

What are the advantages and disadvantages of Unshielded Twisted Paired (UTP) Cable?

A

Cheap and easy to work

Can be affected by radio interference

3
Q

What is CAT1 - CAT7?

A

The type of UTP cable, higher numbers mean more twists in the cable so greater speeds and length

4
Q

What are the characteristics of Shield Twisted Pair Cabling (STP)?

A

Same as UTP with a shield covering the full wire length to reduce interference

5
Q

What are the characteristics of a coaxial cable?

A

Insulated and shielded by a braided wire. Most expensive, but least interference

6
Q

What are the characteristics optic fibre?

A

Fibers of glass used to carry signals in the form of light over long distances. Cheaper than Coaxial

7
Q

What are single mode fibers?

A

Transmit one signal per fiber

8
Q

What are Multi-mode fibers?

A

Transmit many signals per fiber