C Form-factor Pluggable
The C form-factor pluggable (CFP) is a multi-source agreement to produce a common form-factor for the transmission of high-speed digital signals. The c stands for the Latin letter C used to express the number 100 (centum), since the standard was primarily developed for 100 Gigabit Ethernet systems.
The CFP transceiver is specified by a multi-source agreement (MSA) between competing manufacturers. The CFP was designed after the small form-factor pluggable transceiver (SFP) interface, but is significantly larger to support 100 Gbit/s. While the electrical connection of a CFP uses 10 x 10 Gbit/s lanes in each direction (RX, TX) the optical connection can support both 10 x 10 Gbit/s and 4 x 25 Gbit/s variants of 100 Gbit/s interconnects (typically referred to as 100GBASE-SR10 in 100 meter MMF, 100GBASE-LR10 and 100GBASE-LR4 in 10 km SMF reach, and 100GBASE-ER10 and 100GBASE-ER4 in 40 km SMF reach respectively.)
- "CFP MSA Hardware Specification, Rev. 1.4". Retrieved 2010-07-02.
- "Operational Considerations for Deploying 100 Gigabit Ethernet". Retrieved 2012-01-12.
- "Santur Delivers the World’s First 100Gb/s Transceiver Platform for Client Connectivity Based on Photonic Intelligent Integration". news release. March 23, 2009. Archived from the original on July 20, 2009. Retrieved May 27, 2013.