A
PPENDICES
S
ECTION
A
PPENDIX
E
M86 S
ECURITY
U
SER
G
UIDE
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Front control panels on SL and HL units
Control panel buttons, icons, and LED indicators display on
the right side of the front panel. The buttons let you perform
a function on the unit, while an LED indicator corresponding
to an icon alerts you to the status of that feature on the unit.
“SL” chassis front panel
“HL” chassis front panel
The buttons and LED indicators for the depicted icons func-
tion as follows:
UID
(button) – On an “HL” server, when the UID
button is pressed, a steady blue LED displays on
both the front and rear of the chassis (see also
Rear of chassis). These indicators are used for
easy location of the chassis in a large stack config-
uration. The LED remains on until the button is
pressed a second time.
Overheat/Fan Fail
(icon) – This LED is unlit
unless the chassis is overheated. A flashing red
LED indicates a fan failure. A steady red LED (on
and not flashing) indicates an overheating condi-
tion, which may be caused by cables obstructing
the airflow in the system or the ambient room tem-
perature being too warm.