The cable diagnostic feature is designed primarily for administrators or customer service representatives. It is used to test and verify copper cables; it can quickly determine the quality of the cables and the types of error.

Note:
1. The deviation of "Cable Fault Distance" is +/- 2 meters. No cable may be displayed under Test Result when the cable is less than 2 meters in length.

2. The test also measures cable fault and identifies the fault in length according to the distance from this switch.