100G CFP to QSFP28 Adapter Module CAUI-10 to CAUI-4 Converter with FEC MDIO I2C Management

• Supports 100G Ethernet electrical interface conversion from CFP CAUI-10 to QSFP28 CAUI-4
• Converts 10 lanes × 10Gb/s CFP signals into 4 lanes × 25.78Gb/s QSFP28 signals
• Integrated low-latency Forward Error Correction (FEC) for improved transmission reliability
• FEC function can be enabled or disabled through register configuration
• Supports MDIO and I2C management interfaces for monitoring and configuration
• Compatible with hot-pluggable 100G Ethernet system architectures
• Supports standard 100G reference clock frequencies of 161.133MHz and 644.531MHz
• Enables cost-effective migration from CFP-based platforms to QSFP28-based networks
• Designed for high-density data center and optical transport applications

• 100G Ethernet interface conversion between CFP and QSFP28 equipment
• Data center network upgrades and infrastructure migration
• High-performance computing (HPC) network interconnections
• Telecom carrier transport networks
• Optical transmission system upgrades
• Switch, router, and network equipment compatibility extension
• Legacy 100G CFP platform modernization

As an experienced optical networking manufacturer, we provide OEM and customized solutions for different 100G interface conversion requirements. Customers can request customization options including hardware design adjustments, firmware configuration, labeling, mechanical structure, thermal optimization, and compatibility testing with specific switches, routers, and transmission platforms.

What is the purpose of a CFP to QSFP28 adapter module?

A CFP to QSFP28 adapter module enables communication between CFP-based 100G network equipment and QSFP28-based devices by converting different electrical lane architectures. It helps customers upgrade network infrastructure while maintaining compatibility with existing systems.

What is the difference between CAUI-10 and CAUI-4 interfaces?

CAUI-10 uses 10 electrical lanes operating at approximately 10Gb/s per lane, while CAUI-4 uses 4 electrical lanes operating at approximately 25.78Gb/s per lane. The adapter module performs the necessary lane conversion between these two 100G electrical interfaces.

Why is FEC important in 100G interface conversion?

FEC improves transmission reliability by detecting and correcting certain signal errors caused by noise, attenuation, or high-speed electrical transmission limitations. The low-latency FEC design helps maintain performance while minimizing additional processing delay.

How is the adapter module configured and managed?

The module supports MDIO and I2C management interfaces, allowing users to access registers for device monitoring, configuration, diagnostics, and FEC control functions.

Can this adapter module support customized compatibility requirements?

Yes. Customized firmware, hardware configurations, and compatibility validation can be provided according to customer equipment platforms, network architectures, and deployment requirements.