Air Filter - Huawei Eudemon8000E Series Manual

HUAWEI Eudemon8000E Firewall
Hardware Description
Table 2-10 Technical parameters of the fan module
Item
Dimensions (Width x Depth x Height)
Weight
Power consumption (typical value)
Maximum noise
Fan Speed Adjustment
When the system is fully configured, temperatures reported by the temperature sensors on the
LPUs, SFUs, and MPUs serve as the basis for fan speed adjustment. General principles are listed
below:
When the ambient temperature is between -5°C and 27°C, fans rotate at a low speed (2200/min).
When the ambient temperature is above 50°C, fans rotate at a high speed (5900/min). When the
ambient temperature is between 27°C and 50°C, fan speed increases or decreases in tandem with
temperature movements.
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2.7.3 Air Filter

This section describes the appearance of the air filter.
The E8000E-X16 draws in air from the front and exhausts air from the rear. The two air filters
on the upper and lower chassis are identical. To maximize air intake, the filters are fully
perforated. Air filters are fixed to the chassis by fasteners to facilitate filter removal and
replacement.
Figure 2-12 Air filter
The air channel in the SFU area is located on the left of the chassis. The air filter uses front
access. The depth of the air filter is the same as that of an SFU and the height of the air filter is
four times the width of an SFU as shown in
Issue 01 (2012-11-07)
When the ambient temperature is 27°C or below, fans rotate at a fixed low speed, which
meets the ETSI noise requirement and the heat dissipation requirement.
When the ambient temperature is between 27°C and 50°C, the speed of fans is adjusted
smoothly in linear mode, and there are slight changes in noise levels.
Figure 2-12 shows the appearance of an air filter.
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2 E8000E-X16 Chassis Overview
Technical Parameter
210.4 mm x 100 mm x 243.7 mm
3.4 kg
30 W
74 dB
Figure 2-13.
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