Basic reference method required for network cable loss standards EIA/TIA 568B?

Basic reference method required for network cable loss standards EIA/TIA 568B?

• A. Two cables
• B. Three cables
• C. One cable
• D. Four cables

Answer: (C)

The concept being tested is using a single reference sample to establish the baseline for loss measurements. In the basic reference method for EIA/TIA 568B, you measure the attenuation of one reference cable (a known-good run) to set the standard baseline. This single cable defines the expected insertion loss for the test setup, and the actual link under test is evaluated against that baseline. Using more than one reference cable would introduce unnecessary variability from connectors and terminations and isn’t needed for establishing the reference. So the best choice is one cable.

The concept being tested is using a single reference sample to establish the baseline for loss measurements. In the basic reference method for EIA/TIA 568B, you measure the attenuation of one reference cable (a known-good run) to set the standard baseline. This single cable defines the expected insertion loss for the test setup, and the actual link under test is evaluated against that baseline. Using more than one reference cable would introduce unnecessary variability from connectors and terminations and isn’t needed for establishing the reference.

So the best choice is one cable.