CFP Transceiver Supports 40G and 100G
CFP transceiver, which is designed for high rate of 40G and 100G network. 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. CFP is a multi-source agreement to produce a common form-factor for the transmission of high-speed digital signals, was designed after the small form-factor pluggable SFP transceiver.CFP Transceiver Supports to 100G
The CFP transceiver is specified by a multi-source agreement (MSA) between competing manufacturers. The CFP is significantly to support data rates of 40 and 100 Gbps. CFP modules deliver 100-gbps data rates to meet the demand of increasing traffic.
CFP module supports both singlemode and multimode fiber and can accommodate a host of data rates, protocols, and link lengths. At 40GbE, target optical interfaces include the 40GBase-SR4 for 100 m and the 40GBase-LR4 for 10 km. There are three PMDs for 100 GbE, 100GBase-SR10 for 100 m, 100GBase-LR4 for 10 km, and 100GBase-ER4 for 40 km.
There are several design features that enable the CFP transceiver to support this range of distances as well as various power dissipations. First, its size is optimized for longer-reach interfaces and single-mode fiber applications; it is 120 mm long and 86 mm wide, which is the same length but twice the width of a 10GbE XENPAK.
Types of CFP transceiver
CFP
148 pin electrical connection
integrated digital signal processor within package
less than 24W power usage
10x10G or 4x25G lanes
104 pin electrical connection
no digital signal processor in package, relies on host card
less than 12w power usage
10x10G or 4x25G or 8x25G lanes
CFP4
56 pin electrical connection
no digital signal processor in package, relies on host card
less than 6w power usage
10x10G or 4x25G lanes
The CFP2 is the follow-on module to the CFP, supporting the IEEE 100 Gigabit Ethernet and ITU OTU4 standards. It is half the size of the CFP and typically consumes half the power. Equipment makers can increase the front-panel port density from four to eight by migrating to the CFP2.
Features of CFP2 Transceiver
CFP2 transceiver are hot-pluggable transceivers that support a wide range of 40 and 100Gb/s applications such as 40G and 100G Ethernet, OC-768/STM-256, OTU3, and OTU4. Different versions of CFP and CFP2 modules can support various data rates and link distances over either multimode or single mode fiber optics. These module include numerous innovative features like advanced thermal management, EMI management and enhanced signal integrity design, as well as an MDIO-based management interface.
Long-haul network equipment is being redesigned to support CFP modules, metropolitan network equipment is being redesigned to support CFP2 modules, and data center network equipment will be redesigned to support CFP4 modules. The use of CFP transceivers just meet the requirement of high data rate network nowadays. I think they will be widely used in the coming future.