Fan Module - Huawei NE40E Hardware Description

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Hardware Description

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. Table 1-115 lists general

Table 1-115 Fan Speed Adjustment Principles

1.9.5.3 Fan Module

The fan modules, each containing one fan, are located side by side at the air exhaust vent. If a

single fan fails, the system can still work normally at an ambient temperature of 40° C (104° F)

for a short period of time.

Table 1-116 Fan attributes

Table 1-117 Mapping products and versions

Issue 01 (2018-05-03)

Noise and Dissipation Standards

Low speed (50%)

When fans rotate at a constantly low speed and the fans

meet heat dissipation requirements of a fully configured

The fan speed is adjusted smoothly in linear mode,

Linear variation

without a sharp increase in noises.

Fans rotate at high speed to meet heat dissipation

requirements.

CR5M000FBX60

Earliest Software Version

1 Hardware Description

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