15
WARNING
DO
NOT remove the dummy cage for the Single Controller mode
l.
Doing so will disrupt the internal air flow
Internal Backplane
An integrated backplane separates the front and rear sections of the chassis. This circuit
board provides logic level signals and low voltage power paths. Thermal sensors and I
2
C
devices are embedded to detect system temperatures and PSU/Cooling Module operating
status. This board contains no user-serviceable components.
WARNING
Accessing the backplane board may lead to fatal damage of the
system. Also, physical contact with the backplane board may cause electrical
hazards.
Front Panel Components
LED Panel
Unified Storage System LED panel
Expansion Enclosure
LED panel
The LED panel can be located on the chassis ear. The LED panel contains Service LED
(1)
,
a power supply status LED
(2)
, cooling module status LED
(3)
, temperature sensor status
LED
(4)
, System fault LED
(5),
Mute Service button
(6),
rotary ID switch (only expansion
enclosure)
(7)
. For details, please refer to LED Panel.
WARNING
If critical faults are indicated on the LED panel, verify the cause of the problem
as soon as possible and contact your system vendor and arrange for a
replacement module.
