Huawei Quidway S3300 Series User Manual

3.1 Heat Dissipation Mode
This section describes the heat dissipation modes of the S3300.
The heat dissipation system ensures that the S3300 operates at a normal temperature. The
operating temperature of the S3300 is the long-term operating temperature in 1.6 Physical
Specifications.
The heat dissipation system of the S3300 can be in the following modes:
l Natural heat dissipation
l Intelligent heat dissipation
l Forcible heat dissipation
Table 3-1 provides the S3300 models corresponding to each heat dissipation mode.
Table 3-1 S3300 heat dissipation modes
Heat
Dissipati
on Mode
Model
Natural
heat
dissipation
l S3328TP-SI
l S3328TP-EI
l S3328TP-EI-MC
Intelligent
heat
dissipation
l S3352P-SI
l S3352P-EI
Forcible
heat
dissipation
l S3352P-EI-24S
l S3352P-EI-48S
l S3328TP-EI-24S
l S3328TP-PWR-EI
l S3352P-PWR-EI
NOTE
The fans of S3352P-EI-24S, S3352P-EI-24S, and S3328TP-EI-24S 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.
The following table describes the air circulation through the S3300 chassis.
3 Heat Dissipation System
Quidway S3300 Series Ethernet Switches
Hardware Description
3-2 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2011-01-30)

Huawei Quidway S3300 Series Specifications

General

Brand	Huawei
Model	Quidway S3300 Series
Category	Switch
Language	English