What is OpenZR+ for tranponder/muxponder

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Introduction

OpenZR+ defines specifications for 100-400G single-wavelength optical ports for transceiver/transponder, muxceiver/muxponder (TRXR/TRPN, MUXR/MUXP) node functions and for switch/router optical ports.

 

Open ZR+ Architecture

 


The architecture, shown in Figure 1-1 includes client sub-layers for up to four 100GBASE-R clients, up to two 200GBASE-R clients and a single 400GBASE-R client. Client data and alignment markers are extracted and re-timed to the line side clock domain using the general mapping protocol (GMP). Retimed data plus GMP timing information is then mapped into one of the OpenZR+ frame formats. Those frames are multiplexed and OFEC encoded and become the payload of a DSP frame with DP-16QAM, DP-8QAM, or DPQPSK symbols.

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