Glossary

A quadrature amplitude modulation method that uses four states (two light intensities, two phases of light) to transmit data,.

400ZR is an interoperable networking Implementation Agreement released by the OIF in March 2020 . It defines a footprint-optimized solution for transporting 400Gb Ethernet in datacenter inteconnect links with a minimum reach of 80 km.

Fifth-generation technology standard and architecture for mobile networks. It uses higher frequencies, and more (but smaller) cell sites to provide greater bandwidth and lower latency. It is also expected to enable a considerable increase in Internet-of-Things applications.