OIF CEI Technology for 56 Gbps Available for Wider Industry Adoption

The OIF announced today the publication of the “Common Electrical (I/O) CEI 4.0” with a focus on Serdes standards for 56 Gbps. This is the first completion of Serdes standards for the CEI generation of 56 Gbps I/O devices and adds PAM-4 and Ensemble NRZ as additional advanced modulation schemes to NRZ. Preliminary testing of 56 Gbps work has also been demonstrated by OIF members for the past two years at OFC where chip designers, connector vendors and test equipment suppliers showed the viability of the electrical channel parameters. …

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