Hi Zacharias,
thank you for your quick reply
The user led on my device is always off.
I thought it lights on when there is an activity on user interface either web or terminal, but after I tried it does not ever on.
Is this "only" a "programmable" led without default behavior??
The manual page you linked does not report any specific function but "interface-activity" and "show current CAP status" but doen not explain if there is an "embedded" default function.
Thank you for your patience and sorry for my english.
Andrea