Network interface ports
The LAN ports have two LEDs. One LED indicates activity when flashing. The other LED can be green,
amber or off to indicate the speed of the connection, as shown in the following figure. See the following
table for the functions that are associated with the connection speed LED.
Figure 16. LAN LED connection speed indicator
Table 6. LAN LED connection speed colors
Intelligent Platform Management Interface (IPMI)
This network port allows remote administration of hardware. For a detailed description of IPMI, refer to
Each power supply includes one LED with three states in the rear.
Table 7. Power supply LED states
Hard disk drive carrier
Each drive carrier has one LED with two states.
Table 8. Conditions indicated by drive carrier LEDs
No connection or 10 Mbps
System off and plugged in.
Plugged in and turned off or the
appliance is off but in an abnormal
Internal temperature reached 63°C.
Appliance automatically powers
down when PSU temperature reaches
70°C and restarts when the PSU
temperature drops below 60°C.
Chapter 4. Appliance physical interface