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
  69% (25)
• B
  3% (1)
• C
  19% (7)
• D
  8% (3)

Explanation

Option A reflects the industry best practice ratio established by structured cabling standards (ANSI/TIA-568): for every 1U of patch panel, you need 1U of cable management to handle the patch cords on that panel, plus one additional 1U of management to handle the slack and routing of cables coming from the horizontal runs - totaling a 1:1 ratio plus one extra unit per patch panel unit.

Why the distractors are wrong:

• B (2U per 1U) and C (3U per 1U) both over-provision management space - while more room is always physically possible, these ratios aren't recognized as the standard best practice and would waste rack space unnecessarily.
• D (2U management + 2 additional RU per patch panel RU) is even more excessive and doesn't match any standard - it appears designed to confuse by mixing the structure of Option A with inflated numbers.

Memory tip: Think of it as a "1-for-1 plus one" rule - one manager to catch the patch cords at the panel, one extra to handle the incoming cable slack. If you remember "match it, then add one," you'll nail this every time.

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