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Product description
Components> Fan unit
Figure 27: Indicators (LEDs) of the IRU
Legend: Indicators (LEDs) of the IRU
No.
1
2
3
3.2.9 Fan unit
The fan unit is used for cooling the installed components within the DIB-R5 advanced.
The air filter pad is affixed to the inside of the front equipment rack door and filters the dirt
and dust particles from the air.
The fan unit is implemented in the form of a fan subrack for the DIB-R5 advanced and
contains six fans. Each fan features an LED, so that the status is visible from the outside.
The temperatures of the hardware components CHU and BSCU are monitored at all
times and the fan speed is controlled dynamically.
The following figure shows the front view of the fan unit. The following table describes it in
detail.
Figure 28: Fan unit (front view)
Legend: Fan unit (front view)
No.
1
2
3
50
LED
Color
RUN
green
ALM
red
CHU 1 to
green
4
Component
Mounting screw
Handle
Indicators (LEDs)
Description
Flashes if the IRU is in operation
Lights in case of an error
n
Lights if connections to CHUs exist
n
Flashes if data are being transferred
Description
Screw for fastening in the equipment rack
Recessed handle for pulling out the fan unit
Status display of the fan unit, refer to
Ä Table "Legend: Indicators (LEDs) of the fan
unit" on page 51
DIB-R5 advanced
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