Understanding the Cable Diagnostics Status of Switches on Zyxel Nebula

Zyxel_HsiuTe

Q1: How to use Cable Diagnostics on Nebula

A1: Go to Site-wide > Devices > Switches > [Switch Name] > [Port Number], scroll down to Cable Diagnostics, and click it.

Q2: Understanding the Cable Diagnostics Status of Switches on Zyxel Nebula

A2:

Field	Status
Pair Status	OK: The physical connection is okay. Open: No physical connection (an open circuit detected) Short: There is a short circuit detected between the wire-pair. Unknown: The Nebula Device failed to run cable diagnostics on the cable connected to this port. Unsupported: The port is a fiber port or it is not active.
Cable Length	Value: Total length of the Ethernet cable. There are devices on both sides of the cable N/A: Pair Status is Open or Short, Go to Check the Distance to fault. Unsupported: The Nebula Device chipset does not support
Distance to fault (m)	Value: Distance between the port and the location where the cable is open or shorted. N/A: The Pair Status is OK. Unsupported: The Nebula Device chipset does not support

Note:

The displayed cable length value may vary depending on the cable quality and the connected remote device.
Also, cable length measurements are generally more accurate when the cable is longer than 10 meters.

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