Types Of Optical Modules - Huawei AR500 Series Hardware Description

Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
Figure 7-2 Structure of an optical module
1. Handle
4. Shell
7. Spring

7.2.2 Types of Optical Modules

Optical modules are available in various types to meet diversified requirements.
l
l
Issue 10 (2019-03-06)
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
The higher transmission rate an optical module provides, the more complex structure it
has. Optical modules are encapsulated in different modes to provide different structures.
Huawei routers support optical modules of the following encapsulation types: SFP, eSFP,
SFP+, XFP, and QSFP+.
– SFP: small form-factor pluggable. SFP optical modules support LC fiber connectors
and are hot swappable.
– eSFP: enhanced small form-factor pluggable. An eSFP module is an SFP module
that supports monitoring of voltage, temperature, bias current, transmit optical
power, and receive optical power. Sometimes, eSFP is also called SFP.
– SFP+: small form-factor pluggable plus, SFP with a higher rate. SFP+ optical
modules are more sensitive to electromagnetic interference (EMI) because they
have a higher rate. To reduce EMI, SFP+ optical modules have more springs than
SFP optical modules and the cages for SFP+ modules on a card are tighter.
Copyright © Huawei Technologies Co., Ltd.
7 Pluggable Modules for Interfaces
3. Transmitter
6. Dust plug
-
738