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RCDD · Question #33

From a 1000 ft (305 m) roll of optical fiber, how many MAXIMUM length centralized optical fiber cabling runs can be made?

The correct answer is C. 3. Per TIA-568, the maximum length for a centralized optical fiber cabling run (channel) is 100 m (328 ft). Dividing the roll length by the maximum run length: 305 m ÷ 100 m = 3.05, which means only 3 complete maximum-length runs can be made. The remaining ~5 m is not enough for a…

Information Transport Systems (ITS) Distribution

Question

From a 1000 ft (305 m) roll of optical fiber, how many MAXIMUM length centralized optical fiber cabling runs can be made?

Options

  • A1
  • B2
  • C3
  • D4
  • E5

How the community answered

(20 responses)
  • A
    15% (3)
  • C
    70% (14)
  • D
    10% (2)
  • E
    5% (1)

Explanation

Per TIA-568, the maximum length for a centralized optical fiber cabling run (channel) is 100 m (328 ft). Dividing the roll length by the maximum run length: 305 m ÷ 100 m = 3.05, which means only 3 complete maximum-length runs can be made. The remaining ~5 m is not enough for a fourth full-length run. Options D and E (4 or 5 runs) would require a longer roll, and options A and B underutilize the available fiber.

Topics

#centralized optical fiber#fiber cable length#cable calculations#optical fiber cabling

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