Which of the following statements Is CORRECT concerning best practice for horizontal cable management panels?

Question

Options

• AOne RU of management panel for each RU of cable patch panel plus one additional RU of cable
• BTwo RU of cable management panel for each RU of patch panel
• CThree RU of cable management panel for each RU of patch panel
• DTwo RUs of management panel for each RU of cable patch panel plus two additional RUs of

• A
  80% (35)
• B
  7% (3)
• C
  11% (5)
• D
  2% (1)

Explanation

Option A reflects the widely accepted best practice for horizontal cable management: pair each rack unit of patch panel with one rack unit of cable management panel, then add one extra rack unit of cable management to handle slack, bend radius, and routing flexibility. This ratio keeps cable organized without consuming excessive rack space, and the additional unit provides room for moves, adds, and changes without disrupting adjacent panels.

Options B and C are wrong because ratios of 2:1 and 3:1 waste valuable rack space far beyond what structured cabling standards recommend, making them impractical for real-world deployments. Option D compounds this error by specifying two additional RUs on top of an already excessive 2:1 ratio, which has no grounding in standard practice.

Memory tip: Use the phrase "one-to-one, plus one" -- one cable manager for every patch panel, and one more for overflow. If you can remember that simple rule, you can eliminate every other answer choice.

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