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S5700 Series Switches Hardware Description

This document provides an overall description of the S5700 hardware, helping you obtain detailed information about each chassis, card, power module, fan module, cable, and optical module.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
What Is an Optical Module

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 10-2 shows the structure of an optical module.

Figure 10-2 Structure of an optical module (using an SFP/eSFP optical module as an example)
1. Handle 2. Receiver 3. Transmitter
4. Shell 5. Label 6. Dust plug
7. Spring 8. Connector -

Figure 10-3 shows an SFP/eSFP optical module.

Figure 10-3 SFP/eSFP optical module

Figure 10-4 shows the appearance of an SFP+ optical module.

Figure 10-4 Appearance of an SFP+ optical module
Figure 10-5 and Figure 10-6 show the appearance of a QSFP+ optical module.
Figure 10-5 Appearance of a QSFP+ optical module (for LC optical fibers)
Figure 10-6 Appearance of a QSFP+ optical module (for MPO optical fibers)

The side with an L-shaped notch close to the connector is the top of a QSFP+ optical module, as shown in Figure 10-5. When connecting a QSFP+ optical module to a port, keep the top side upward. Do not insert the QSFP+ optical module upside down.

Currently, there is no formal standard for 40G Ethernet. Therefore, a device may not display complete diagnostic information about 40GE optical modules. This is an acceptable fact in the telecommunications industry and does not affect functions of 40GE optical modules.

Figure 10-7 shows the appearance of a CSFP optical module.

Figure 10-7 Appearance of a CSFP optical module

Figure 10-8 shows the appearance of an XFP module.

Figure 10-8 Appearance of an XFP optical module
NOTE:
The SFP+ and XFP optical modules are 10GE hot-pluggable optical modules. Compared with the SFP+ optical modules, the XFP optical modules have a larger caliber.

Figure 10-9 and Figure 10-10 show CFP optical modules for different optical fibers.

Figure 10-9 CFP 100GE optical module (for LC optical fibers)
Figure 10-10 CFP 100GE optical module (for MPO optical fibers)
Figure 10-11 and Figure 10-12 show the appearance of a QSFP28 optical module.
Figure 10-11 Appearance of a QSFP28 optical module (for MPO optical fibers)
Figure 10-12 Appearance of a QSFP28 optical module (for LC optical fibers)
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Updated: 2019-08-19

Document ID: EDOC1000013597

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