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LAN Connector LED
LINK/ACT LED
The LINK/ACT LED shows the status of a standard network port. It is green if power is
supplied to the main unit and hub, and they are connected correctly ("LINK"). It blinks green
while the network port sends or receives data (ACT).
When the LED does not illuminate during "LINK," check the condition and connection of
network cables. If there is nothing wrong with the cables, a defect is suspected in the network
(LAN) controller. In this case, contact your sales agent.
Speed LED
This LED indicates the network interface of the communication mode used by a network port.
1000BASE-T and 100BASE-TX are the supported LAN port types. When this LED illuminates
in amber, the port is operating on 1000BASE-T. When the LED illuminates in green, the port is
operating on 100BASE-TX.
Power Supply Unit LED
Power supply units located at the rear have power supply unit LEDs. When power is supplied to a
power supply unit by connecting a power cord to the AC inlet of the power supply unit, its LED
blinks in green. When the server is powered on, the LED illuminates in green. If the LED does not
illuminate in green or illuminates/blinks in amber, the power supply unit may be failing. Contact
your service agent and ask for replacement of the power supply unit.
Cooling Fan LED
Cooling fan units located at the rear have cooling fan LEDs. While a cooling fan unit is working
normally, its LED illuminates in green. When the LED illuminates in amber, the fan unit may have
a problem. Contact you service agent and ask for the replacement of the cooling fan unit.
General Description 2-29
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Troubleshooting
