The CFP2 module contains a PCB with a 104-contact card-edge electrical interface to external Host/Client-side logic compliant to OIF-CFP2-DCO-01. The network lane interface is a duplex LC connector coupled to an optical fiber carrying the DP-mQAM coherent signal in the. The common electrical interface CEI-28G-VSR implementation architecture (IA) for short reach channels is intended for next generation 100 Gbps chip - to - optical module applications. CFP2 is a pluggable optical module that uses CEI-28G-VSR as its electrical interface (as defined by the CFP. Optical modules are not “just optics”: they are tightly-coupled electrical recovery/equalization, optics bias/monitoring, and power/thermal control in a pluggable package. Stable interoperability and low BER depend on managing SI margin, optical/Rx chain linearity, telemetry trust (CMIS/DOM), and. Cisco offers a comprehensive range of pluggable optical modules in the Cisco ONS pluggables portfolio. The wide variety of modules gives you flexible and cost-effective options for all types of interfaces. Cisco offers a range of GBIC, SFP, XFP, SFP+, CXP, CFP, Cisco CPAK, and QSFP+ pluggable. A CFP optical module is a high-speed pluggable transceiver used in fiber optic communication systems to enable 100 Gigabit Ethernet (100G) data transmission over optical fiber. It plays a fundamental role in converting electrical signals from networking equipment into optical signals—and vice. This document describes the product specifications for coherent 400G CFP2 DCO modules based on dual polarization quadrature amplitude modulation (DP-16QAM) or probabilistic constellation shaping quadrature amplitude modulation (PCS-16QAM) supporting extended C-band, polarization diversity coherent. CFP2-DCO-400G-D is CFP2 form factor coherent pluggable module compliant to the CFP MSA CFP2 hardware specification, based on DP-mQAM modulation, polarization diversity coherent intradyne detection and advanced electronic link equalization. On the host side, the module can accommodate a variety of.