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Sample Report Of HUAWEI SFP-25G-LR (Part Number: 02312LSE) Optical Module

Time: 2026-05-19
        HUAWEI offers the SFP-25G-LR optical module with part number 02312LSE, which supports 25G Ethernet transmission over a 10-km single-mode fiber (SMF). The ModuleTek Optoelectronics Laboratory has tested the sample to help users further understand its performance indicators and real-world switch compatibility.
1. Product Overview
        The physical appearance and official key specifications of the HUAWEI SFP-25G-LR optical module are as follows:
Appearance
Figure 1 Appearance

Table 1 Official Key Specifications
Item
Specification
Basic Information
Module Name
SFP-25G-LR
Part Number
02312LSE
Form Factor
SFP28
Interface Standard
25GBASE-LR
Connector Type
LC
Fiber Type
SMF
Operating Case Temperature [°C]
-40℃~+85℃
DOM
Supported
Data Rate [bit/s]
25Gbit/s
Target Transmission Distance [km]
 10 km (SMF)
Transmitter Optical Parameters
Central Wavelength [nm]
1310nm
Maximum Transmit Optical Power [dBm]
2dBm
Minimum Transmit Optical Power [dBm]
-7dBm
Minimum Extinction Ratio [dB]
3.5dB
Receiver Optical Parameters
Receiver Sensitivity [dBm]
-11.3dBm
Overload Optical Power [dBm]
2dBm
2. Switch Identification Test
        The SFP-25G-LR module was inserted into a HUAWEI CloudEngine 6860-48S8CQ-EI switch, and patch cords were connected. The module achieved normal link status, with the port indicator lighting up. The switch successfully identified the module information, including module type, vendor, model, serial number, data rate, and transmission distance. DOM data was readable normally, with all values within the threshold range and no alarms.
Table 2 On-switch Identification
Item

Information Read by Switch
LINK
Identification
DOM Data
FEC Mode
3. Key Parameter Testing
        With the module’s case temperature maintained at 45°C in the laboratory, the performance indicators of the SFP-25G-LR sample were tested on a test board. The test results are as follows:
Table 3 Performance Metrics
Parameter
 Test Result Unit Remarks
Transmit Optical Power
-1.47
dBm
 
Receive Sensitivity (without fiber)
-15.50
dBm
5E-5 BER
Receive Sensitivity (with 10 km fiber)
-15.20
dBm
5E-5 BER
Power Consumption
0.915
W
 
        An optical eye-diagram test was also conducted on the sample module under the same 45°C case temperature. The eye-diagram template and parameters are shown below:
Optical Eye Diagram
Figure 2 Optical Eye Diagram

Table 4 Eye Diagram Parameters
Temperature (°C)
Extinction Ratio (dB) 
P-P Jitter (ps) 
Rise Time (ps) 
Fall Time (ps) 
Margin Value (%) 
45
4.40
14.64
20.46
21.64
19.8
        Actual test results confirm that all key performance indicators of the sample module meet HUAWEI’s official specifications.
        ModuleTek Optoelectronics is committed to providing you with professional services.
        For further inquiries about the above content, please contact us at: sales@moduletek.com
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