What is 25G SFP28 optical transceiver | www.fiberwdm.com
The 25G Ethernet solution is a solution standardized and developed by the IEEE 802.3 working group P802.3by. This solution is mainly used in the data center environment. The 25G Ethernet Alliance was established in July 2014 to support the deployment of single-channel 25GB/s solutions and dual-channel 50GB/s Ethernet solutions. The 25GB Ethernet Alliance was completed in September 2015. In November 2015, the 802.3 working group was established to develop a single-channel 25 GB/s Ethernet solution. On June 30, the IEEE 802.3by standard was approved by the IEEE-SA Standards Committee. The FiberWDM 802.3by standard defines the following technologies: Single channel 25 GB/s 25GBASE-KR PHY for printed circuit backplanes. PHY is a chip, an abbreviation for the physical layer of the OSI model； Single channel 25 GB/s 25GBASE-CR-S PHY for 3 m twinaxial cable (in-rack) Single channel 25 GB/s 25GBASE-CR-L PHY for 5 m twinaxial cable (between racks) ； Single channel 25 GB/s for 100 m O...