VDV Cabling Standards 4

Question 1

What is the maximum recommended distance between cable support points for horizontal UTP cable runs per TIA-569?

Accepted Answer

0.9 meters (3 ft)

Answer

TIA-569 recommends cable supports at no more than 0.9 meter (3 ft) intervals for horizontal UTP to prevent sagging and stress.

Question 2

In a TIA-568 structured cabling system, what is the purpose of the Intermediate Cross-Connect (IC)?

Accepted Answer

To interconnect backbone cabling between the main and horizontal cross-connects

Answer

The IC provides an optional third-level connection point between the MC (Main Cross-Connect) and HC (Horizontal Cross-Connect) in large campus backbones.

Question 3

Which parameter specifically measures the difference between the crosstalk introduced at the far end from multiple disturbing pairs?

Accepted Answer

PS-FEXT

Answer

PS-FEXT (Power Sum Far-End Crosstalk) combines the crosstalk contributions from multiple disturbing pairs at the far end of the cable.

Question 4

What is the minimum separation between AC power conduit and telecommunications conduit when running parallel per TIA-569?

Accepted Answer

6 inches (150 mm)

Answer

TIA-569 requires a minimum 150 mm (6 inch) separation between power and telecommunications conduits running in parallel to reduce EMI.

Question 5

According to ANSI/TIA-568, which Cat cable category first introduced augmented specifications to support 10GBase-T at full 100-meter channel length?

Accepted Answer

Cat6A

Answer

Cat6A (Augmented Category 6) was specifically designed to support 10GBase-T Ethernet at 100-meter channel distances.

(VDV) Voice Data Video Technician Certified Practice Test

(VDV) Voice Data Video Technician Certified Practice Test

VDV Cabling Standards 4