About Huawei QSFP-40G-ER4 02311BKT 40GBASE-ER4 QSFP+ 40km Transceiver Module in Bangladesh
The Huawei QSFP-40G-ER4 is a 40Gbps QSFP+ optical transceiver designed for long-distance Ethernet connectivity over single-mode fiber. With Huawei part number 02311BKT, the module complies with the 40GBASE-ER4 optical standard and supports transmission distances of up to 40km over compatible single-mode fiber.
Huawei's official hardware documentation identifies the QSFP-40G-ER4 as a QSFP+ module with an LC connector, SMF optical fiber support, 40Gbit/s transmission rate and 40km target transmission distance. It also supports digital diagnostic monitoring (DDM). :contentReference[oaicite:1]{index=1}
Huawei QSFP-40G-ER4 02311BKT Specifications & Features
| Specification | Details |
|---|
| Brand | Huawei |
| Part Number | 02311BKT |
| Model | QSFP-40G-ER4 |
| Form Factor | QSFP+ |
| Transmission Rate | 40Gbps / 40GE |
| Application Standard | 40GBASE-ER4 |
| Fiber Type | Single-mode Fiber (SMF) |
| Maximum Target Distance | 40km |
| Connector | LC |
| Center Wavelengths | 1271nm, 1291nm, 1311nm, 1331nm |
| DDM | Supported |
| Operating Temperature | 0°C to 70°C |
Overview
The Huawei QSFP-40G-ER4 provides 40Gbps Ethernet connectivity for long-distance optical networking. It is designed around the 40GBASE-ER4 standard and uses single-mode fiber with an LC interface for links reaching up to 40km.
The module is particularly suitable for enterprise backbone networks, metropolitan-area networking, data center interconnection and other applications where 40Gbps connectivity must span substantially longer distances than short-reach multimode optics.
Buy Huawei QSFP-40G-ER4 02311BKT in Bangladesh
Purchase the Huawei QSFP-40G-ER4 02311BKT 40GBASE-ER4 QSFP+ 40km optical transceiver from Datacom Technologies (BD). We supply Huawei optical transceivers, QSFP/QSFP+ modules, SFP/SFP+ optics, enterprise networking equipment and data center connectivity solutions in Bangladesh with competitive pricing and technical consultation.
Key Features
- 40Gbps optical networking
- Huawei part number 02311BKT
- QSFP+ form factor
- 40GBASE-ER4 standard
- Up to 40km transmission distance
- Single-mode fiber support
- LC connector
- Four CWDM wavelengths: 1271nm, 1291nm, 1311nm and 1331nm
- Digital Diagnostic Monitoring support
- Suitable for long-distance 40G Ethernet links
- Designed for compatible Huawei networking platforms
Applications
- Huawei Data Center Networks
- Enterprise Backbone Networks
- 40G Ethernet Uplinks
- Metropolitan Area Networks
- Data Center Interconnection
- Long-Distance Campus Connectivity
- Telecom and Transport Networks
- Core and Aggregation Networks
- High-Bandwidth Network Links
- Enterprise Network Infrastructure
40Gbps High-Speed Connectivity
The QSFP-40G-ER4 provides a 40Gbps optical networking interface for high-bandwidth network infrastructure. It is designed for applications requiring significantly more bandwidth than 10Gbps Ethernet while maintaining a compact QSFP+ form factor.
The 40GE interface makes the module suitable for high-capacity uplinks, aggregation links, backbone connections and data center interconnection.
40GBASE-ER4 Standard
The Huawei QSFP-40G-ER4 complies with the 40GBASE-ER4 optical standard. Huawei identifies 40GBASE-ER4 as the application standard for part number 02311BKT. :contentReference[oaicite:2]{index=2}
ER4 is designed for extended-reach 40Gbps Ethernet applications over single-mode fiber, making it appropriate for substantially longer links than short-reach 40G optics.
40km Transmission Distance
The QSFP-40G-ER4 has a documented target transmission distance of 40km over single-mode fiber. Huawei specifies single-mode fiber as the applicable optical medium. :contentReference[oaicite:3]{index=3}
Actual achievable distance depends on the fiber plant, optical loss, connectors, splices, patch panels and the characteristics of the equipment at both ends of the link.
Single-Mode Fiber Connectivity
The module is designed for single-mode fiber (SMF). Huawei documentation specifies SMF as the supported optical fiber type and identifies a 40km target transmission distance. :contentReference[oaicite:4]{index=4}
Using the appropriate single-mode fiber infrastructure is important for maintaining the optical budget and achieving the intended link distance.
LC Connector
The Huawei QSFP-40G-ER4 uses an LC optical connector. Huawei documentation specifies LC as the connector type for this module. :contentReference[oaicite:5]{index=5}
Some Huawei documentation for newer platforms specifies LC/DLC terminology and PC or UPC end-face options. Therefore, the exact connector implementation should be confirmed against the physical module and target equipment before installation. :contentReference[oaicite:6]{index=6}
Four-Wavelength Optical Architecture
The QSFP-40G-ER4 uses four optical wavelengths: 1271nm, 1291nm, 1311nm and 1331nm. Huawei lists these four center wavelengths in its technical specifications. :contentReference[oaicite:7]{index=7}
The multiple-wavelength architecture enables 40Gbps transmission over single-mode fiber through wavelength-division multiplexing within the QSFP+ module.
Optical Transmission Characteristics
Huawei specifies a maximum transmit optical power of 4.5dBm and a minimum transmit optical power of -2.7dBm. The documented minimum extinction ratio is 5.5dB. :contentReference[oaicite:8]{index=8}
The specified receiver sensitivity is -19.5dBm, while the overload power is specified at -4.5dBm. :contentReference[oaicite:9]{index=9}
Digital Diagnostic Monitoring
The Huawei QSFP-40G-ER4 supports Digital Diagnostic Monitoring (DDM). DDM allows compatible network equipment to obtain optical and module operating information for monitoring and troubleshooting purposes. :contentReference[oaicite:10]{index=10}
Actual monitoring information available to the network administrator depends on the host switch, firmware and management implementation.
Operating Temperature
Huawei specifies an operating case temperature range of 0°C to 70°C for the QSFP-40G-ER4. :contentReference[oaicite:11]{index=11}
The module should be deployed within the specified environmental range to maintain reliable optical performance.
Huawei Platform Compatibility
Huawei documents the QSFP-40G-ER4 across multiple networking platforms, including S7700, S12700, CloudEngine and other Huawei systems. The exact software and hardware compatibility requirements vary by platform. :contentReference[oaicite:12]{index=12}
Huawei documentation notes that certain platforms require specific software versions. For example, one Huawei S7700 hardware document states that the module can only be used on switches running V200R008C00 or later. :contentReference[oaicite:13]{index=13}
Always verify the target Huawei switch model, interface card, software version and optical-module compatibility before installation.
Long-Distance 40G Network Applications
The extended reach of the QSFP-40G-ER4 makes it suitable for network links that exceed the practical range of short-reach 40G multimode optics.
- Data center interconnection
- Metro network links
- Enterprise backbone connectivity
- Long-distance aggregation
- Campus backbone links
- Core network uplinks
- Telecom infrastructure
- High-capacity transport links
Huawei QSFP-40G-ER4 vs QSFP-40G-LR4
| Feature |
Huawei QSFP-40G-ER4 |
Typical QSFP-40G-LR4 |
| Data Rate |
40Gbps |
40Gbps |
| Standard |
40GBASE-ER4 |
40GBASE-LR4 |
| Fiber |
SMF |
SMF |
| Reach |
Up to 40km |
Typically shorter |
| Connector |
LC |
LC |
| Form Factor |
QSFP+ |
QSFP+ |
| Primary Use |
Extended-reach 40G links |
Long-reach 40G links |
The ER4 version is intended for extended-reach applications. Huawei separately lists QSFP-40G-LR4 as another 40GE QSFP+ optical module, with different reach and part-number configurations. :contentReference[oaicite:14]{index=14}
Compatibility Considerations
The QSFP-40G-ER4 is a 40G QSFP+ optical transceiver. It should not be confused with 100G QSFP28, 40G SR4 or 40G LR4 modules.
- Verify the host port supports QSFP+ 40GE optics
- Verify Huawei part-number compatibility
- Confirm the switch software version
- Use compatible single-mode fiber
- Use the appropriate LC connector configuration
- Verify the optical link budget for the planned distance
- Confirm both ends use compatible 40G optical specifications
Huawei's documentation contains platform-specific compatibility and software-version requirements, so compatibility should be checked against the exact switch and interface board before deployment. :contentReference[oaicite:15]{index=15}
Benefits
- 40Gbps high-speed networking
- 40GBASE-ER4 optical standard
- Up to 40km reach over SMF
- QSFP+ compact form factor
- LC optical interface
- Four CWDM wavelengths
- DDM support
- Suitable for long-distance network links
- Suitable for data center interconnection
- Designed for compatible Huawei networking equipment
Why Buy from Datacom Technologies (BD)?
Datacom Technologies (BD) supplies Huawei optical transceivers, QSFP/QSFP+ modules, SFP/SFP+ optics, enterprise networking equipment and data center connectivity solutions in Bangladesh. Customers can receive competitive pricing, technical consultation, compatibility 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-ER4?
The Huawei QSFP-40G-ER4 is a 40Gbps QSFP+ optical transceiver designed for 40GBASE-ER4 long-distance Ethernet connectivity.
Q2: What is the Huawei part number?
The official Huawei part number is 02311BKT. :contentReference[oaicite:16]{index=16}
Q3: What is the transmission speed?
The module supports a 40Gbit/s transmission rate for 40GE networking. :contentReference[oaicite:17]{index=17}
Q4: What standard does it support?
It supports the 40GBASE-ER4 optical standard. :contentReference[oaicite:18]{index=18}
Q5: What is the maximum transmission distance?
Huawei specifies a target transmission distance of 40km over single-mode fiber. :contentReference[oaicite:19]{index=19}
Q6: What type of fiber does it use?
The module uses single-mode fiber (SMF). :contentReference[oaicite:20]{index=20}
Q7: What connector does QSFP-40G-ER4 use?
Huawei specifies an LC connector. :contentReference[oaicite:21]{index=21}
Q8: What wavelengths does it use?
The four center wavelengths are 1271nm, 1291nm, 1311nm and 1331nm. :contentReference[oaicite:22]{index=22}
Q9: Does the module support DDM?
Yes. Huawei specifies Digital Diagnostic Monitoring support for the QSFP-40G-ER4. :contentReference[oaicite:23]{index=23}
Q10: What is the operating temperature?
Huawei specifies an operating case temperature of 0°C to 70°C. :contentReference[oaicite:24]{index=24}
Q11: Is QSFP-40G-ER4 compatible with Huawei switches?
Yes, it is documented for compatible Huawei networking platforms. Exact compatibility depends on the switch model, interface board and software version. :contentReference[oaicite:25]{index=25}
Q12: Can QSFP-40G-ER4 be used for data center interconnection?
Yes. Its 40Gbps capacity and up to 40km SMF reach make it suitable for appropriate data center interconnection and backbone applications.
Q13: Is QSFP-40G-ER4 the same as QSFP-40G-SR4?
No. ER4 is an extended-reach 40G optical module designed for single-mode fiber and up to 40km, whereas SR4 is intended for short-reach multimode-fiber applications.
Q14: Is QSFP-40G-ER4 the same as QSFP-40G-LR4?
No. Both are 40G QSFP+ optics, but ER4 and LR4 are different optical standards with different reach characteristics and compatibility requirements.
Q15: Where can I buy Huawei QSFP-40G-ER4 02311BKT in Bangladesh?
You can contact Datacom Technologies (BD) for Huawei QSFP+ optical transceivers, SFP modules, networking equipment and data center connectivity solutions with competitive pricing and nationwide delivery.
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