Huawei 02130879 Datasheet download pdf (Page 26)

3.1 Heat Dissipation Mode

This section describes the heat dissipation modes of the S3700.

The heat dissipation system ensures that the S3700 operates at a normal temperature. The

operating temperature of the S3700 is the long-term operating temperature in Physical

Specifications.

The heat dissipation system can be in the following modes:

l Natural heat dissipation

l Intelligent heat dissipation

l Forcible heat dissipation

Table 3-1 provides the S3700 models corresponding to each heat dissipation mode.

Table 3-1 S3700 heat dissipation modes

Heat

Dissipati

on Mode

Model

Natural

heat

dissipation

l S3700-28TP-SI-AC

l S3700-28TP-SI-DC

l S3700-28TP-EI-AC

l S3700-28TP-EI-DC

l S3700-28TP-EI-MC-AC

Intelligent

heat

dissipation

l S3700-52P-SI-AC

l S3700-52P-EI-AC

l S3700-52P-EI-DC

Forcible

heat

dissipation

l S3700-52P-EI-24S-AC

l S3700-52P-EI-24S-DC

l S3700-52P-EI-48S-AC

l S3700-52P-EI-48S-DC

l S3700-28TP-EI-24S-AC

l S3700-28TP-PWR-EI

l S3700-52P-PWR-EI

NOTE

The fans of S3700-52P-EI-24S-AC, S3700-52P-EI-24S-DC, S3700-52P-EI-48S-AC, S3700-52P-EI-48S-

DC, and S3700-28TP-EI-24S-AC support Pulse Width Modulation (PWM) speed adjustment.

The fans can work in the intelligent mode or forcible mode.

In the intelligent mode, the fans start to operate only when the ambient temperature goes higher than a

specified value.

Quidway S3700 Series Ethernet Switches

Hardware Description 3 Heat Dissipation System

Issue 03 (2012-07-20) Huawei Proprietary and Confidential

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Huawei 02130879 Datasheet Page 26

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