Sun Microsystems Netra 440, Service Manual

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Chapter 1 Identifying the Netra 440 Server FRUs and LEDs 15
Enclosure Status LEDs
The back panel enclosure status LEDs consist of the System Activity LED, the system
Service Required LED, and the Locator LED. These LEDs are located in the top-left
corner of the back panel, and operate as described in
TABLE 1-2
.
Network Management Port LED
The network management port has a Link LED that operates as described in
TABLE 1-8
.
Power Supply LEDs
There are three LEDs on each power supply. These LEDs operate as described in
TABLE 1-9
.
TABLE 1-8
Network Management Port LED
Name Description
Link This green LED lights when an Ethernet connection is present.
TABLE 1-9
Power Supply LEDs
Name Icon Description
OK-to-
Remove This blue LED lights when it is safe to remove the power
supply from the system. This LED is controlled by the
software only.
Service
Required This amber LED lights when the power supply’s internal
circuitry detects a fault. Note that the Service Required LEDs
on the front and back panels also light when this occurs.
Power OK This green LED lights when the power supply is in standby
mode or when it is on and outputting regulated power within
specified limits.