Lenovo Secure Managed Client - Manual (Page 58)

Table 5. NIC LEDs (continued)
LED LED state Description
Solid green Active network connection is
in place
Blinking green Transmit / receive activity is
occurring
Right Off 10 Mbps connection (if left
LED is on or blinking)
Solid green 100 Mbps connection
Solid amber 1000 Mbps connection
Audible alarms
The PSUs incorporate audible alarms, which indicate when a fault state is present.
A Voltage Out Of Range condition will activate the audible alarm.
The audible alarm can be muted by pressing the Enclosure ID button on the front
operator’s panel.
Alarm interpretation
The following table summarizes the various interpretations when combining LED
states and audible alarms. Use this table to help understand a pattern of lights and
beeps. Each light/beep is taken in turn and shows linked items, so some of the
data is duplicated in several places to make ease of search better.
Note: There will be no beep if the enclosure is muted.
Table 6. Light and buzzer interpretations
LED/buzzer State Related Meaning Action
Front operator's panel
fault light
Off No warnings or
worse
None - all OK
Slow blink (0.5
seconds on, 3.5
seconds off)
Slow beep (half
second beep every 8
seconds). No
fan/drive lights on
constant. No beep if
muted.
Warning state -
usually approaching
temperature
threshold.
Measure ambient
temperature and
increase if too cold or
decrease if too hot. If
failure is still present,
check for a failing fan
that also has a broken
light.
Slow beep. Fan light
constant. No beep if
muted.
Fan broken or out of
tolerance.
Replace fan.
Slow beep. Fan light
constant. No beep if
muted.
Drive fault Replace drive
52 Hardware Maintenance Manual