Huawei NE05E Hardware Manual page 217

HUAWEI NE05E,NE08E
Hardware Guide
Figure 3-68 Optical module structure
1. Handle
5. Label
3.5.1.2 Optical Module Classification
Optical modules are available in various types to meet diversified requirements.
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Issue 05 (2023-03-31)
2. Receiver
6. Dust cap
Classified by transmission rates
Currently, the transmission rates of optical modules cover a wide range.
According to different transmission rates, optical modules can be classified
into 400 Gbit/s optical modules, 200 Gbit/s optical modules, 100 Gbit/s optical
modules, 40 Gbit/s optical modules, 25 Gbit/s optical modules, and 10 Gbit/s
optical modules, 2.5 Gbit/s optical modules, 1.25 Gbit/s optical modules, 1000
Mbit/s optical modules, 155 Mbit/s optical modules, and 100 Mbit/s optical
modules.
Classified by encapsulation types
The higher transmission rate an optical module provides, the more complex
structure it has. According to the encapsulation type, optical modules are
classified into SFP, eSFP, SFP+, XFP, SFP28, QSFP28, QSFP+, CXP, CFP and CSFP.
– SFP: small form-factor pluggable.
– 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. Because all the SFP
optical modules support these monitoring functions, eSFP is also called
SFP.
– SFP+: small form-factor pluggable plus, SFP with a higher rate. SFP+
modules are more sensitive to electromagnetic interference (EMI)
because they have a higher rate. To reduce EMI, SFP+ modules have more
springs than SFP modules and the cages for SFP+ modules on a card are
tighter.
– XFP: X is the Roman numeral 10, meaning that all XFP optical modules
provide a 10 Gbit/s transmission rate. XFP optical modules support LC
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3 Hardware Description
3. Transmitter
7. Spring
4. Shell
8. Module
connector
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