Asus AP2400R-E1 - Manual (Page 14)

Chapter 1: Product introduction 1-6
1.6 LED information
The location switch and LED are for service purposes. When the
system fails or is shut down, the server administrator can press either
the front or the rear location switch to identify the location of the
specific 2U system in a rack cabinet.
LED Icon Display status Description
Power LED ON System power ON
HDD Access LED OFF No activity
Blinking Read/write data into the HDD
Message LED OFF System is normal; no incoming event
Blinking ASWM indicates a HW monitor event
Location LED OFF Normal status
ON Location switch is pressed
(Press the location switch again to turn off)
LAN1 LED OFF No 64-bit Gbit LAN connection
Blinking LAN is transmitting or receiving data
ON LAN connection is present
Front panel LEDs
Power LED
Location LED
Message LED
HDD Access LED
LAN LED