CEI-28G: Paving the Way for 100 Gigabit

By Ethernet Alliance

While the first generation of devices supporting 100 Gigabit per second (Gb/s) will utilize a 10 lane by 10 Gb/s signaling rate, future power and size reduction requirements will drive the need for a faster, narrower interface. Noting these future needs, the Optical Internetworking Forum has initiated development of standards for the next generation of electrical signaling for long reach and short reach applications.

This paper provides an overview of the CEI-28G project, which defines electrical specifications for 28 Gbaud/s signaling for next generation chip-to-chip and chip-to-module applications that support transmission of 100 Gb/s data rates, such as 100 Gigabit Ethernet and OTU4.