The ICT distribution designer is hired to design a Telecommunications Room on the third floor of a building. The size of the floor is 28 m by 26 m (92 x 85 ft). What is to be the MINIMUM size of the…

Question

Options

• AShallow Room, no minimum room size
• B=3 m (10 ft) by = 2.40 m (8 ft)
• C=3 m (10 ft) by =2.74 m (9 ft)
• D=3 m (10 ft) by =3.40 m (11 ft)

• A
  4% (1)
• B
  73% (19)
• C
  8% (2)
• D
  15% (4)

Explanation

According to ANSI/TIA-569, a Telecommunications Room serving a floor area up to 1,000 m² (approximately 10,000 sq ft) requires a minimum size of 3 m × 2.4 m (10 ft × 8 ft). Since this floor measures 28 × 26 m = 728 m², it falls below the 1,000 m² threshold, making option B the correct minimum.

Why the distractors are wrong:

• A is incorrect because the standard always specifies a minimum room size for a TR - "no minimum" applies to certain closet-style exceptions, not standard TRs serving an occupied floor.
• C (10 ft × 9 ft) and D (10 ft × 11 ft) are larger than the required minimum for this floor size; they may apply to larger floor areas or are simply fabricated distractors not aligned with the TIA-569 table.

Memory tip: Think "8 × 10 under 10K" - a TR serving under 10,000 sq ft (1,000 m²) needs at least an 8 ft × 10 ft room. The 10 ft (3 m) dimension is fixed; only the depth changes as floor size grows.

No community discussion yet for this question.