DCI Standards & Codes Compliance 3

Question 1

Which NEC article governs the installation of coaxial cables used for community antenna television (CATV) systems?

Accepted Answer

Article 820

Answer

NEC Article 820 covers coaxial cable installations for CATV, CCTV, and similar radio frequency distribution systems.

Question 2

According to ANSI/TIA-568, the maximum distance for a horizontal cable run from the telecommunications outlet to the horizontal cross-connect is:

Accepted Answer

90 meters

Answer

TIA-568 limits horizontal cabling to 90 meters to allow 10 meters for patch cords and equipment cables while keeping the channel under 100 meters.

Question 3

A cable installer finds existing unlabeled cables in a ceiling space. Per TIA-606, the FIRST action should be to:

Accepted Answer

Report to the building owner and document their location

Answer

TIA-606 administration standards require documentation of existing infrastructure before modification, including notifying the responsible party.

Question 4

When bonding metallic cable sheaths to the telecommunications bonding backbone (TBB), the applicable standard is:

Accepted Answer

ANSI/TIA-607-C

Answer

ANSI/TIA-607-C covers telecommunications bonding and grounding planning and installation methods.

Question 5

Under NEC 800.156, communications outlets installed in dwelling units must be listed and:

Accepted Answer

Marked with the cable type they support

Answer

NEC 800.156 requires listed communications outlets in dwellings to be marked to identify the communications system they serve.

(DCI) Data Cabling Installer Practice Test