About Huawei QSFP-40G-LR4 40GBASE-LR4 10km LC DOM Transceiver Module in Bangladesh
The Huawei QSFP-40G-LR4 is a 40Gbps QSFP+ optical transceiver designed for high-speed Ethernet networking over single-mode fiber. It complies with the 40GBASE-LR4 application standard and uses an LC connector for transmission distances of up to 10km over single-mode fiber.
Huawei's official documentation identifies the QSFP-40G-LR4 as a QSFP+ 40GE optical module with 1271nm, 1291nm, 1311nm and 1331nm optical channels, LC connectivity, single-mode fiber support and a target transmission distance of 10km. Digital diagnostic monitoring (DDM) is supported. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/426001d0/qsfp-40g-lr4-02313ury))
The Huawei QSFP-40G-LR4 is suitable for compatible Huawei switches, routers and data center networking platforms that support 40GE QSFP+ optical modules.
Huawei QSFP-40G-LR4 Specifications & Features
| Specification | Details |
|---|
| Brand | Huawei |
| Model | QSFP-40G-LR4 |
| Form Factor | QSFP+ |
| Transmission Rate | 40Gbps / 40GE |
| Application Standard | 40GBASE-LR4 |
| Wavelength | 1310nm nominal; 1271nm, 1291nm, 1311nm and 1331nm channels |
| Connector | LC |
| Fiber Type | Single-Mode Fiber (SMF) |
| Maximum Transmission Distance | 10km |
| Digital Diagnostic Monitoring | Supported |
| Operating Temperature | 0°C to 70°C |
| Typical Part Number | 02310MHS / 02313URY depending on Huawei variant |
Overview
The Huawei QSFP-40G-LR4 provides a 40Gbps optical networking interface for long-distance data center and enterprise network connections. Its 40GBASE-LR4 specification is designed for transmission over single-mode fiber up to 10km.
Unlike 40GBASE-SR4 modules that use MPO connectivity and multimode fiber for short-range links, the QSFP-40G-LR4 uses an LC connector and single-mode fiber for substantially longer transmission distances.
Buy Huawei QSFP-40G-LR4 40G Transceiver in Bangladesh
Purchase the Huawei QSFP-40G-LR4 40GBASE-LR4 10km LC DOM Transceiver Module from Datacom Technologies (BD). We supply Huawei optical transceivers, QSFP+, SFP+, data center networking equipment and enterprise network components in Bangladesh with competitive pricing and technical consultation.
Key Features
- 40Gbps high-speed Ethernet connectivity
- 40GBASE-LR4 standard
- QSFP+ form factor
- 10km transmission distance
- LC duplex connector
- Single-mode fiber support
- 1310nm optical transmission
- Four CWDM optical wavelengths
- Digital Diagnostic Monitoring (DDM/DOM)
- 0°C to 70°C operating temperature
- Designed for compatible Huawei networking equipment
Applications
- Huawei 40GE Switches
- Data Center Networks
- Enterprise Core Networks
- Server-to-Switch Connectivity
- Switch-to-Switch Interconnection
- Data Center Interconnects
- Campus Network Backbone Links
- Long-Distance 40G Ethernet Links
- Single-Mode Fiber Infrastructure
- High-Speed Network Uplinks
40GBASE-LR4 Optical Technology
The QSFP-40G-LR4 uses the 40GBASE-LR4 standard for 40Gbps Ethernet transmission over single-mode fiber. Huawei specifies four optical channels centered at approximately 1271nm, 1291nm, 1311nm and 1331nm.
The use of multiple wavelengths enables 40Gbps transmission through a duplex LC single-mode fiber connection. Huawei specifies a target transmission distance of up to 10km. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/426001d0/qsfp-40g-lr4-02313ury))
10km Transmission Distance
The Huawei QSFP-40G-LR4 is designed for links of up to 10km over compatible single-mode fiber.
This makes the module suitable for longer-distance network links where short-range multimode optics such as 40GBASE-SR4 are not appropriate.
LC Connector
The module uses an LC connector. LC connectivity is widely used in single-mode fiber infrastructure and provides a compact duplex fiber interface.
When deploying the QSFP-40G-LR4, use compatible duplex single-mode fiber cabling and ensure the optical characteristics of the connected modules and fiber plant are suitable for the planned link.
Single-Mode Fiber Support
The QSFP-40G-LR4 is designed for single-mode fiber (SMF). Huawei's official specifications identify SMF as the applicable optical fiber type and specify a maximum target distance of 10km. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/426001d0/qsfp-40g-lr4-02313ury))
Single-mode fiber makes the module suitable for campus backbones, data center interconnections and longer-distance enterprise network links.
Digital Diagnostic Monitoring
The Huawei QSFP-40G-LR4 supports Digital Diagnostic Monitoring (DDM). DDM provides supported optical monitoring information that can assist network administrators in monitoring transceiver operating conditions.
Depending on the host platform, available diagnostic parameters and software support may vary.
Optical Characteristics
Huawei's specifications for the QSFP-40G-LR4 identify four optical center wavelengths: 1271nm, 1291nm, 1311nm and 1331nm.
| Optical Parameter | Specification |
|---|
| Center Wavelengths | 1271nm / 1291nm / 1311nm / 1331nm |
| Maximum Tx Optical Power | 2.3 dBm |
| Minimum Tx Optical Power | -7.0 dBm |
| Minimum Extinction Ratio | 3.5 dB |
| Receiver Sensitivity | -11.5 dBm |
| Receiver Overload | 3.3 dBm |
These optical characteristics are specified by Huawei for the QSFP-40G-LR4 variant documented as part number 02313URY. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/426001d0/qsfp-40g-lr4-02313ury))
QSFP+ Form Factor
The QSFP-40G-LR4 uses the QSFP+ form factor. QSFP+ is commonly used for 40Gbps Ethernet and provides a compact interface suitable for high-density data center switches and routers.
The module must be installed in a compatible QSFP+ port that supports Huawei's 40GBASE-LR4 optical modules.
Operating Temperature
Huawei specifies an operating case temperature range of 0°C to 70°C for the QSFP-40G-LR4. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/426001d0/qsfp-40g-lr4-02313ury))
This temperature range is suitable for typical controlled data center and enterprise networking environments.
Huawei QSFP-40G-LR4 Part Numbers
Huawei documentation contains more than one part-number variant for the QSFP-40G-LR4 family. Official Huawei documentation identifies 02310MHS and 02313URY as QSFP-40G-LR4 variants. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/12184f33/qsfp-40g-lr4-02310mhs))
For this reason, the exact Huawei part number should be verified from the label on the physical transceiver before publishing a specific part number in the product title.
40GBASE-LR4 vs 40GBASE-SR4
| Feature |
40GBASE-LR4 |
40GBASE-SR4 |
| Speed |
40Gbps |
40Gbps |
| Fiber |
Single-Mode Fiber |
Multimode Fiber |
| Connector |
LC |
MPO |
| Typical Maximum Distance |
10km |
Short-range |
| Optical Wavelength |
1310nm nominal |
850nm |
| Typical Application |
Longer-distance backbone/data center links |
Short-range data center links |
Network Applications
The Huawei QSFP-40G-LR4 is suitable for high-speed network connections where 40Gbps bandwidth and longer single-mode fiber reach are required.
- 40GE switch uplinks
- Core-to-distribution links
- Data center interconnects
- Switch-to-switch connections
- Enterprise backbone networks
- Campus backbone connectivity
- Server aggregation networks
- High-capacity storage networks
Compatibility Considerations
The QSFP-40G-LR4 should be installed only in networking equipment that supports the appropriate Huawei QSFP+ 40G optical module.
- Compatible Huawei QSFP+ port
- 40G Ethernet support
- 40GBASE-LR4 optical support
- Single-mode fiber infrastructure
- Duplex LC fiber connection
- Appropriate optical link budget
- Compatible switch/router firmware
Huawei publishes QSFP-40G-LR4 compatibility information for its networking platforms. For example, Huawei's S7700 documentation lists the QSFP-40G-LR4 as a 40GE QSFP+ optical module with LC, SMF and 10km transmission capability. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/426001d0/qsfp-40g-lr4-02313ury))
Why Choose Huawei QSFP-40G-LR4?
- 40Gbps high-speed network connectivity
- 10km single-mode fiber reach
- LC connector for established fiber infrastructure
- 40GBASE-LR4 standards-based optical interface
- QSFP+ high-density form factor
- DDM support for optical monitoring
- Suitable for enterprise and data center networks
- Designed for compatible Huawei networking equipment
Why Buy from Datacom Technologies (BD)?
Datacom Technologies (BD) supplies Huawei optical transceivers, QSFP+, SFP+, enterprise switches, data center networking equipment and optical networking components in Bangladesh. Customers can receive competitive pricing, technical consultation, deployment assistance and nationwide delivery.
- Call/WhatsApp: +8801748173213
- Email: sales@datacom.com.bd
- Alternative Email: datacomtechnologiesbd@gmail.com
- Office: Tropical Center, 218, Dr. Kudroti Khuda Road, New Elephant Road, Dhaka-1205, Bangladesh
Frequently Asked Questions (FAQ)
Q1: What is the Huawei QSFP-40G-LR4?
The Huawei QSFP-40G-LR4 is a 40Gbps QSFP+ optical transceiver designed for 40GBASE-LR4 Ethernet transmission over single-mode fiber.
Q2: What is the transmission distance?
The module supports a target transmission distance of up to 10km over single-mode fiber. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/426001d0/qsfp-40g-lr4-02313ury))
Q3: What connector does it use?
The QSFP-40G-LR4 uses an LC connector.
Q4: What type of fiber does it support?
It is designed for single-mode fiber (SMF).
Q5: What is the operating wavelength?
The module uses four optical channels centered at 1271nm, 1291nm, 1311nm and 1331nm, commonly described as a 1310nm-class LR4 module. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/426001d0/qsfp-40g-lr4-02313ury))
Q6: Does the Huawei QSFP-40G-LR4 support DOM?
Yes. Huawei identifies Digital Diagnostic Monitoring (DDM) as supported. DDM is commonly referred to as DOM in optical-transceiver terminology.
Q7: What is the form factor?
The module uses the QSFP+ form factor.
Q8: What is the operating temperature?
Huawei specifies a 0°C to 70°C operating case-temperature range.
Q9: What is the difference between LR4 and SR4?
LR4 is designed for longer-distance transmission over single-mode fiber using LC connectivity, while SR4 is designed for shorter-range multimode fiber connections and typically uses MPO connectivity.
Q10: What are the Huawei part numbers for QSFP-40G-LR4?
Huawei documentation identifies multiple QSFP-40G-LR4 variants, including 02310MHS and 02313URY. Confirm the exact part number from the physical module before ordering. ([Huawei](https://support.huawei.com/enterprise/en/doc/EDOC1000013755/12184f33/qsfp-40g-lr4-02310mhs))
Q11: Can it be used with any QSFP+ switch?
Not necessarily. The host switch/router must support 40GBASE-LR4 and the optical module's specific compatibility requirements. Always check the equipment manufacturer's compatibility documentation.
Q12: Where can I buy Huawei QSFP-40G-LR4 in Bangladesh?
You can contact Datacom Technologies (BD) for Huawei QSFP+, SFP+, optical transceivers and enterprise networking equipment with competitive pricing and nationwide delivery.
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