RCDD Cabling Infrastructure and Pathways 1

Question 1

According to ANSI/TIA-568, what is the maximum horizontal cable run length for Category 6A copper cabling?

Accepted Answer

90 meters

Answer

ANSI/TIA-568 specifies a maximum permanent link (horizontal) length of 90 meters for copper cabling, with an additional 10 meters allowed for patch cords.

Question 2

What is the minimum bend radius for a 4-pair Category 6 UTP cable during installation?

Accepted Answer

8 times the cable diameter

Answer

ANSI/TIA-568 requires a minimum bend radius of 8 times the cable outer diameter for 4-pair UTP cables during installation.

Question 3

Which standard governs commercial building telecommunications pathways and spaces in the US?

Accepted Answer

ANSI/TIA-569

Answer

ANSI/TIA-569 is the standard for commercial building telecommunications pathways and spaces, covering conduit, cable trays, and equipment rooms.

Question 4

What is the maximum fill ratio for a conduit containing telecommunications cables according to ANSI/TIA-569?

Accepted Answer

53%

Answer

ANSI/TIA-569 specifies a maximum conduit fill ratio of 53% for a single cable, decreasing for multiple cables to ensure pull-through ease and cable protection.

Question 5

Which type of cable tray is recommended for areas where dust collection is a concern?

Accepted Answer

Wire mesh tray

Answer

Wire mesh cable trays (wire basket trays) are recommended in environments where dust collection is a concern because they allow airflow and are easy to clean.

RCDD - Registered Communications Distribution Designer Practice Test

RCDD - Registered Communications Distribution Designer Practice Test

RCDD Cabling Infrastructure and Pathways 1