100G CFP to QSFP28 Adapter Module with FEC: CFP-QSFP28-CONV-F

Our EDGEOPTIC CFP-QSFP28-CONV-F is a multi-vendor compatible 100G CFP to QSFP28 adapter module with integrated FEC (Forward Error Correction) support, designed for high-speed network deployments requiring enhanced signal integrity. The CFP-QSFP28-CONV-F adapter converts 100 Gigabit CFP ports to QSFP28 interfaces, supporting data rates from 103.125 to 111.809 Gbps for both 100G Ethernet and OTU-4 applications.

The adapter module achieves interface conversion by re-mapping the CFP CAUI-10 electrical interface with 10x10 Gbps data lanes to the QSFP28 CAUI-4 electrical interface with 4x25 Gbps data lanes. This lane remapping provides network engineers with the flexibility to utilize 100G interfaces across equipment platforms regardless of whether they are equipped with CFP or QSFP28 module cages. The integrated 802.3bm RS-FEC (Reed-Solomon Forward Error Correction) capability distinguishes this model from the standard CFP-QSFP28-CONV, enabling support for optical interfaces that require FEC for reliable operation, including 100GBASE-SR4 applications.

The CFP-QSFP28-CONV-F adapter supports configurable reference clock settings for different applications. For OTU-4 operation, the reference clock can be set to 174.703 MHz or 698.812 MHz, while 100G Ethernet operation utilizes 161.133 MHz or 644.531 MHz reference frequencies. The FEC engine processes data in real-time, correcting bit errors that may occur in the optical transmission path and significantly improving link reliability for marginal optical connections.

The adapter is hot-pluggable and conforms to CFP Hardware Specification Version 1.4 on the host side and QSFP28 MSA specifications on the module side. Maximum power consumption is 5W, supplied from a single +3.3V rail, with the FEC processing contributing to the power budget. The module operates within standard 0 to 70°C temperature range, appropriate for controlled data center environments with adequate airflow.

Full DDM/DOM (Digital Diagnostic Monitoring) pass-through is supported, enabling real-time monitoring of inserted QSFP28 transceiver parameters through the CFP Management Interface. Network management systems can access transmitted and received optical power levels, module temperature, and supply voltage information for comprehensive operational visibility.

Standards compliance includes CE marking, RoHS certification, IEEE 802.3bm for FEC implementation, and adherence to both CFP MSA Management Interface specifications and QSFP28 MSA requirements. This compliance ensures reliable interoperability across diverse network equipment from multiple vendors while providing the error correction capability required for modern high-speed optical links.

Typical applications include 100G data center interconnects utilizing multimode fiber, carrier backbone networks, and enterprise deployments where optical link budgets may be marginal. The FEC capability enables reliable operation over optical paths that would otherwise experience unacceptable error rates, extending the effective reach of optical interfaces. Because our focus is providing top quality service, we perform comprehensive quality testing including FEC validation, electrical interface testing, and thermal characterization before delivery of our products.