Here is a public article KBA-1629 with LED function details.
https://support.ruckuswireless.com/articles/000001629Find the attached document to find details of LED status on all Indoor APs or refer below.
LED Description PWR Off: Off
Red: Boot up in process
Green: On
DIR Off: The AP is not being managed by a controller (Standalone mode)
Green: The AP is being managed by a controller
Slow flashing green (one flash every two seconds): The AP is managed by a controller but is currently unable to communicate with it.
Fast flashing green (two flashes every second): The AP is managed by a controller and is currently receiving configuration settings or an image update.
AIR Off: The AP is operating in standalone mode or as a Root AP (RAP) or non-Mesh AP.
Green: The AP is functioning as a Mesh AP (MAP), and the wireless uplink signal is good.
Fast flashing green (two flashes every second): The AP is functioning as a Mesh AP (MAP), and the wireless uplink signal is fair.
Slow flashing green (one flash every two seconds): Mesh networking is enabled, but the AP is still searching for a mesh uplink.
2.4G Off: The WLAN service is down.
Green: The WLAN is up and at least one client is associated.
Amber: The WLAN is up. No clients are associated.
5G Off: The WLAN service is down.
Green: The WLAN is up and at least one client is associated. No downlink MAPs are connected.
Slow flashing green (one flash every two seconds): The WLAN is up and at least one downlink MAP is connected. No clients are associated.
Fast flashing green (two flashes every second): The WLAN is up, at least one downlink MAP is connected and at least one client is associated.