Cisco QSFP-40GE-LR4= Transceiver Module
The Cisco QSFP-40GE-LR4= is a 40 Gigabit Ethernet QSFP+ optical transceiver designed for long-reach network connectivity over single-mode fiber (SMF). It supports 40GBASE-LR4 and operates at a nominal 1310nm wavelength.
The module uses four optical wavelengths that are multiplexed and demultiplexed within the transceiver, allowing a 40Gbps Ethernet signal to travel up to 10km over standard G.652 single-mode fiber. It uses a duplex LC optical interface for connection to compatible Cisco 40G QSFP+ ports.
Cisco QSFP-40GE-LR4= Technical Specifications
| Specification |
Details |
| Product Model |
QSFP-40GE-LR4= |
| Form Factor |
QSFP+ |
| Data Rate |
40Gbps |
| Ethernet Standard |
40GBASE-LR4 |
| Wavelength |
1310nm nominal |
| Optical Lanes |
4 wavelengths |
| Fiber Type |
Single-Mode Fiber (SMF) |
| Fiber Specification |
G.652 |
| Maximum Reach |
Up to 10km |
| Connector |
Duplex LC |
| Optical Transmission |
Four-wavelength multiplexed 40G transmission |
| Power Consumption |
Approximately 3.5W |
40GBASE-LR4 Optical Connectivity
The Cisco QSFP-40GE-LR4= is designed for long-reach 40Gbps Ethernet applications. It uses four optical wavelengths in the 1310nm region, with the individual wavelengths multiplexed onto a single fiber pair. The receiving side demultiplexes the wavelengths back into the four electrical lanes.
10km Single-Mode Fiber Reach
The module supports distances of up to 10km using G.652 single-mode fiber. This makes it suitable for inter-building links, campus networks, data center interconnects, and longer-distance enterprise backbone connections.
Duplex LC Fiber Interface
The QSFP-40GE-LR4= uses a duplex LC connector, providing separate optical transmit and receive paths. This interface is particularly suitable for existing duplex single-mode fiber cabling infrastructure.
Network Applications
- 40 Gigabit Ethernet uplinks
- Data center interconnects
- Enterprise backbone networks
- Campus network connectivity
- Inter-building fiber links
- Core and distribution network connections
- Long-distance 40Gbps optical links
Compatibility
The Cisco QSFP-40GE-LR4= is designed for compatible Cisco equipment equipped with 40 Gigabit Ethernet QSFP+ interfaces. Cisco documentation identifies it as a 40GBASE-LR4 module using 1310nm SMF and duplex LC connectivity. Always verify the exact Cisco platform and software release before deployment.
Cisco QSFP-40GE-LR4= Price in Bangladesh
Looking for the Cisco QSFP-40GE-LR4= price in Bangladesh? Datacom Technologies (BD) provides Cisco optical transceiver solutions for enterprise networks, data centers, service providers, and network infrastructure projects.
Pricing and availability may vary depending on product condition, quantity, warranty requirements, and project specifications. Contact Datacom Technologies (BD) for current pricing, availability, bulk requirements, and project-based solutions.
Why Choose Cisco QSFP-40GE-LR4=?
- High-speed 40Gbps Ethernet connectivity
- 40GBASE-LR4 optical technology
- 1310nm single-mode fiber operation
- Up to 10km optical reach
- Duplex LC fiber interface
- Suitable for long-distance enterprise and data center links
- Designed for compatible Cisco QSFP+ platforms
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