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Chapter 11
Powering Off and On
11-9
FIGURE 11-8
Status LEDs on the Enterprise 4500 Front Panel
summarizes the front panel LED status conditions during and after POST.
TABLE 11-1
LED Status Indicators
Location
LED
Condition
Front panel
Left or Top
LED (green)
On — DC power supply is receiving AC current.
Off — There is no DC power.
Middle LED
(yellow)
On flashing— (first 60 seconds) self-tests are running.
Off — (after self-tests end) No hardware failures.
On — (after self-tests end) Hardware failure was detected.
Right or
Bottom
LED (green)
Off — (first 60 seconds) self-tests are running.
On flashing— (after self-tests end) System is running.
Off — (after self-tests end) System cannot run; repair is
needed.
DC power
Fault
System running
Front view
Summary of Contents for 5500
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