DCI Cabling Standards 5

Question 1

What is the minimum bend radius for a Category 6 UTP horizontal cable during installation (not under tension)?

Accepted Answer

8 times the cable diameter

Answer

TIA-568-C.2 requires a minimum bend radius of 4 times the cable diameter under tension and 8 times at rest for Cat 6 UTP.

Question 2

Which standard provides guidance on installing structured cabling in industrial environments subject to harsh conditions?

Accepted Answer

TIA-1005-A

Answer

ANSI/TIA-1005-A is the Telecommunications Infrastructure Standard for Industrial Premises, addressing harsh electrical and environmental conditions.

Question 3

How does TIA-568 define the 'permanent link' in a copper cabling system?

Accepted Answer

The channel excluding equipment cords at both ends

Answer

The permanent link includes the installed horizontal cable and connecting hardware but excludes the patch/equipment cords at each end.

Question 4

What is the maximum pulling tension allowed for 4-pair UTP horizontal cable during installation per TIA-568?

Accepted Answer

25 lbs (11 kg)

Answer

TIA-568 limits pulling tension for 4-pair UTP horizontal cable to 25 lbs (110 N) to prevent damage to the cable geometry and electrical performance.

Question 5

Which performance parameter measures the difference in signal propagation delay between the fastest and slowest pairs in a UTP cable?

Accepted Answer

Propagation delay skew

Answer

Propagation delay skew measures the timing difference between the fastest and slowest pairs, critical for applications using all four pairs simultaneously.

(DCI) Data Cabling Installer Practice Test

(DCI) Data Cabling Installer Practice Test

DCI Cabling Standards 5