# Cable diagnostics

### 1. Summary

The cable diagnostic function can be used to easily check whether or not the LAN cable connected to the LAN port has a faulty connection/circuit.
It can be used to troubleshoot network problems or as an easy way to check cables when setting up networks.

### 2. Cable diagnostics page

In this page you can diagnose cables. To diagnose a cable, select the port and press the "Execute" button. Press the "Clear" button to clear the diagnostic results shown.

#### 2.1. Cable diagnostics

- Port

  - Port diagnosed is displayed.

- Result

  - The status of the cable connected to the LAN port is displayed.

    - OK : The cable is electrically connected.

    - Open : Either a device is not connected on the opposite end or the cable is faulty.

    - Short : A short-circuit occurred.

- Distance to cable fault

  - If "Open" or "Short" is indicated in results, then the distance from the LAN port to the cable fault is displayed in meters.

- Estimated cable length

  - If "OK" is indicated in results, then the estimated cable length is displayed in meters.

  - Estimated cable length is undetermined when the opposite port is linking up at a link speed of less than 1G or shutdown.

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