Placing a black sponge air filter on the air intake vent helps to prevent dust from entering the system.
Cleaning the air filter once every three months is recommended.
1.9.4 Heat Dissipation System of the NE40E-X8A
1.9.4.1 System Air Channel
The NE40E-X8A supports a maximum of three fan modules. For a platform with forwarding
capacity as 400 Gbit/s or below, only two fan modules need to be configured. For a platform
with forwarding capacity as 1 Tbit/s, three fan modules need to be configured. Each fan
module consists of six fans.
Figure 1-83 shows the locations of the fan module and air intake vent on the NE40E-X8A.
Figure 1-83 Air channel on the NE40E-X8A
The system draws air from the front and discharges air from the back. The air intake vent
resides above the board area on the front chassis; the air exhaust vent resides above the board
area on the rear chassis. The system draws air for heat dissipation. Figure 1-84 shows air
flows.
The air filters on the air intake vents are vertically installed and featured with the curved face,
large area, and small windage resistance, helping to improve the heat dissipation efficiency.
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