When using a cable fault analyzer, why is it necessary to have the manufacturer's reference points established?

Having the manufacturer's reference points established is crucial for ensuring accurate results when using a cable fault analyzer. These reference points serve as the baseline measurements that the analyzer compares against during testing. Without these reference points, the instrument may not correctly identify the characteristics of the cable or pinpoint issues like faults, shorts, or opens. Accurate reference points enhance the reliability of measurements and tests, allowing technicians to diagnose and resolve problems effectively.

While measuring the standard length of the cable or setting up the tone generator might seem relevant, these tasks do not directly relate to the primary purpose of establishing reference points, which is to guarantee that the results obtained from the analyzer reflect the true state of the cable being tested.