Cabling Standards & Installation Practices Flashcards

What is the maximum horizontal cable distance from the telecommunications room to the work area outlet per TIA-568?

Answer: 90 meters (295 ft)

TIA-568 specifies a maximum horizontal cable run of 90 meters (295 ft), leaving 10 meters for patch and equipment cords within the 100-meter channel limit.

Which wire map fault occurs when a wire is connected to different pins at each end of the cable?

Answer: Reversed pair

A reversed pair (also called transposed pair) occurs when the two wires of a pair are connected to opposite pins at one end compared to the other.

Per TIA-568, what is the minimum number of telecommunications outlets required per work area?

Answer: 2 outlets

TIA-568 requires a minimum of two telecommunications outlets per work area to support both voice and data services.

What installation practice helps minimize alien crosstalk between adjacent Category 6A cables?

Answer: Maintaining manufacturer-specified spacing or using shielded cable

Maintaining manufacturer-specified spacing between Cat 6A cables or using F/UTP (shielded) cable significantly reduces alien crosstalk.

Which standard governs pathways and spaces for telecommunications in commercial buildings?

Answer: ANSI/TIA-569

ANSI/TIA-569 is the Pathways and Spaces Standard, covering conduit, cable trays, sleeves, and equipment rooms.

When terminating a Category 6 jack, which practice is critical to maintain performance?

Answer: Untwist pairs no more than 13 mm (0.5 in) from the point of termination

Maintaining pair twist as close as possible to the point of termination — no more than 13 mm (0.5 in) of untwist — is essential for Cat 6 performance.

What does NEXT stand for in cable testing terminology?

Answer: Near-End Crosstalk

NEXT (Near-End Crosstalk) measures the signal coupling from a transmitting pair to an adjacent pair, measured at the same end as the transmitter.