40G QSFP+ LR4 10km Industrial CWDM 1310nm Optical Transceiver with Duplex LC for 40GBASE-LR4 Ethernet

The 40G QSFP+ LR4 Industrial Optical Transceiver provides 40Gb/s transmission over up to 10km single-mode fiber using 1310nm CWDM technology. With 4-lane MUX/DEMUX architecture, duplex LC interface, and OTU3 compatibility, it is ideal for reliable Ethernet and optical transport networks.

SKU 40G-QSFP-LR4-10KM Category
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The 40G QSFP+ LR4 Industrial Optical Transceiver is a high-performance 40Gbps pluggable module designed for reliable long-distance Ethernet transmission over single-mode fiber. Operating in the 1310nm wavelength band with a 4-lane CWDM MUX/DEMUX optical architecture, this module enables efficient parallel transmission across four CWDM channels, supporting transmission distances of up to 10km through duplex LC fiber interfaces.

Designed for industrial networking environments and high-capacity communication systems, the QSFP+ LR4 transceiver provides stable performance under demanding operating conditions. It is suitable for 40G Ethernet, OTU3 optical transport applications, data center connections, and enterprise backbone networks where reliable, low-latency fiber connectivity is required.

40G QSFP+ LR4 10km Industrial CWDM Transceiver Size Spec

40G QSFP+ LR4 10km Industrial CWDM Transceiver Size Spec

Optical Transport StandardOTU3
Form FactorQSFP+
Data Rate40Gb/s
Maximum Transmission DistanceUp to 10km
Fiber TypeSingle-Mode Fiber (SMF)
Optical Architecture4-Lane CWDM MUX/DEMUX
Wavelength Band1310nm CWDM
Channel BandwidthUp to 11.2Gbps per Channel
Number of Optical Channels4 Channels
Optical ConnectorDuplex LC
Transmitter TypeCWDM Laser
Receiver TypePIN/APD Receiver (Optional Based on Design)
Power SupplySingle +3.3V
Digital DiagnosticsOptional DDM Support
Fiber CompatibilityOS2 Single-Mode Fiber
  • Supports 40Gb/s high-speed Ethernet and optical transport applications
  • QSFP+ hot-pluggable form factor for flexible network deployment
  • Supports transmission distances up to 10km over single-mode fiber (SMF)
  • 4-lane CWDM MUX/DEMUX architecture for efficient wavelength multiplexing
  • Operates in the 1310nm CWDM wavelength band
  • Supports up to 11.2Gbps data bandwidth per optical channel
  • Duplex LC optical interface for standard single-mode fiber connections
  • Designed for industrial-grade network environments
  • Single +3.3V power supply for efficient operation
  • Compatible with 40GBASE-LR4 Ethernet and OTU3 optical networking applications
  • Optimized for stable signal transmission and low latency connectivity
  • 40GBASE-LR4 Ethernet networks
  • OTU3 optical transport systems
  • Industrial Ethernet infrastructure
  • Data center interconnect (DCI)
  • Enterprise backbone networks
  • Metropolitan Area Networks (MAN)
  • High-speed switch and router uplinks
  • Long-distance single-mode fiber communication links

We provide flexible OEM and customization services to support different customer requirements and networking environments. The 40G QSFP+ LR4 industrial optical transceiver can be customized with vendor-specific EEPROM coding, compatibility programming, product labeling, logo printing, and packaging options.

For industrial and large-scale network deployments, we also support customized testing, operating temperature requirements, and platform compatibility verification to ensure seamless integration with customer equipment from different manufacturers.

What is the difference between 40G QSFP+ LR4 and ER4 transceivers?

The main difference is the supported transmission distance. The 40G QSFP+ LR4 is designed for links up to 10km, while ER4 modules extend transmission distances up to 40km. LR4 is typically used for campus networks, data centers, and metropolitan connections where moderate-distance transmission is required.

Why does the LR4 module use CWDM technology?

CWDM technology allows multiple optical wavelengths to be transmitted simultaneously through a single fiber pair. In this module, four CWDM channels work together through internal MUX/DEMUX components to achieve a total 40Gbps transmission rate while maintaining a compact QSFP+ form factor.

Can this transceiver be used for OTU3 applications?

Yes. The 40G QSFP+ LR4 module supports OTU3 optical transport applications, making it suitable for telecom and optical transport networks that require 40Gbps connectivity over single-mode fiber infrastructure.

What fiber type is required for this 40G QSFP+ LR4 module?

This transceiver is designed for single-mode fiber (SMF), typically OS2 fiber, and uses duplex LC connectors for connection with standard fiber optic cabling systems.

Is this module suitable for industrial environments?

Yes. The industrial version is designed for applications requiring enhanced reliability and stable operation in demanding environments. Customized temperature ranges and testing requirements can be supported based on project needs.