Dell PowerConnect 3524 Cli Reference Manual page 279

Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
The port must be active and working in 100M or 1000M mode.
Example
The following example displays the estimated copper cable length attached to all ports.
Console> show copper-ports cable-length
Port
----
1/e1
1/e2
1/e3
1/g1
Length [meters]
---------------------
< 50
Copper not active
110-140
Fiber
PHY Diagnostics Commands
279