Understanding Optical Modules; What Is An Optical Module; Types Of Optical Modules - Huawei S2700-EI Series Hardware Description

S2700-EI Series Ethernet Switches
Hardware Description

4.2 Understanding Optical Modules

4.2.1 What Is an Optical Module

On an optical network, a sender needs to convert electrical signals into optical signals before
sending them to a receiver, and the receiver needs to convert received optical signals into
electrical signals. An optical module is a component that completes electrical/optical conversion
on an optical network.
Figure 4-2 Structure of an optical module
1. Handle
4. Shell
7. Spring

4.2.2 Types of Optical Modules

Optical modules are available in various types to meet diversified requirements.
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Figure 4-2
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1 3 2
2. Receiver
5. Label
8. Connector
Classified by transmission rates
Depending on transmission rates, optical modules are classified into FE, GE, 10GE, and
40GE optical modules.
Classified by encapsulation types
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shows the structure of an optical module.
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4 Pluggable Modules for Interfaces
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3. Transmitter
6. Dust plug
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