Extreme Networks Alpine 3804 Hardware Manual page 154

Alpine 3800 Series Switch Power Supplies
If the switch passes the POST, the MGMT LED blinks at a slow rate (one blink per second). If the switch
fails the POST, the MGMT LED shows a solid yellow light.
NOTE
See Chapter 9, "Alpine 3800 Series Switch Management Module" for more information about switch
management module LED activity and Chapter 10, "Alpine 3800 Series I/O Modules" for more
information about I/O module LED activity.
154 Extreme Networks Consolidated Hardware Guide