400G OSFP-RHS LR4 10km Optical Transceiver CWDM4 PAM4 Duplex LC SMF Module

• Supports 400Gbps Ethernet transmission over single-mode fiber
• Designed for 400GBASE-LR4 long-reach optical applications
• Supports transmission distances up to 10km over G.652 SMF
• Uses four CWDM wavelengths for parallel optical transmission
• Integrates high-performance EML laser transmitters for stable long-distance links
• Supports PAM4 modulation technology for high-bandwidth transmission
• Converts 4 × 106.25Gb/s PAM4 electrical lanes into 4 optical channels
• OSFP-RHS pluggable form factor for high-density network equipment
• Duplex LC optical connector for simple fiber deployment
• Supports CMIS two-wire serial interface management
• Integrated Digital Diagnostic Monitoring (DDM)
• Low power consumption with maximum power dissipation of ≤10W
• Supports hot-pluggable installation and maintenance
• Designed for hyperscale data centers and advanced Ethernet networks

• 400G Ethernet data center networks
• Hyperscale cloud infrastructure
• AI and machine learning network clusters
• Data center interconnects (DCI)
• Enterprise backbone networks
• High-performance computing (HPC) environments
• Large-scale switch and router interconnections
• Next-generation optical transport networks

FiberMania provides OEM and customized OSFP optical transceiver solutions for cloud service providers, data center operators, and network equipment manufacturers. Customization options include firmware configuration, CMIS parameter programming, EEPROM customization, product labeling, packaging solutions, and network equipment compatibility optimization.

For large-scale 400G deployments, we support application-specific requirements including optical performance testing, thermal optimization, power efficiency improvements, temperature grade selection, and interoperability verification with different switching platforms.

What is the difference between 400G OSFP-RHS LR4 and SR8 optical modules?

The main difference is transmission distance and fiber type. OSFP-RHS LR4 uses CWDM4 wavelengths and EML technology over single-mode fiber to support up to 10km transmission, while SR8 modules typically use 850nm VCSEL technology with multimode fiber for shorter data center links.

What fiber type is required for the 400G OSFP-RHS LR4 module?

This transceiver is designed for G.652 single-mode fiber (SMF). The duplex LC interface allows direct connection to standard single-mode fiber cabling commonly deployed in data centers and enterprise optical networks.

Why does the module use EML laser technology?

EML (Electro-Absorption Modulated Laser) technology provides excellent optical performance, higher output stability, and improved transmission quality compared with basic laser solutions, making it suitable for longer-reach 400G optical links.

Does this 400G OSFP-RHS module support digital monitoring?

Yes. The module supports CMIS management and integrated Digital Diagnostic Monitoring (DDM), allowing compatible systems to monitor operational parameters such as temperature, voltage, and optical power.

What are the advantages of the OSFP-RHS form factor?

OSFP-RHS is designed for high-speed networking platforms requiring increased thermal efficiency and port density. It supports higher bandwidth applications such as 400G and future-generation Ethernet while maintaining compatibility with modern data center switch architectures.