40G CFP Wiki

The transmissioncapability meet growing demand and reduce the cost of communication systems, there is a 40Gbit/s CFP (hot-swappable Gigabit percent) optical module, which utilizes multiplexing techniques wavelength division 10Gbit/s to achieve four carrier signals of different wavelengths by using an optical fiber transmission. It consists mainly of a transmitting unit, a receiving unit and a control unit 3 pieces. It is targeted on the running principle and the specific design of each the main program, according to standard IEEE 802.3.ba prototype was tested, the final results prove that the modules meet the application requirements of Ethernet 40 Gbit/s .

40G CFP transceiver modules are prepared for use within 40 Gigabit Ethernet links over single mode fiber. They're compliant with all the CFP MSA1 and IEEE 802.3ba 40GBASE-LR42. Digital diagnostics functions can be found via an MDIO interface, as specified by the CFP MSA. The transceiver is RoHS-6 compliant and lead-free per Directive 2002/95/EC3.IEEE 802.3ba standard supports 40Gbit/s and 100 Gbit/s Ethernet frame transmission, while establishing a backbone network, the physical layer specification copper cabling, multimode fiber and single-mode optical fiber communication, to be able to alleviate future core network bandwidth "bottleneck "problem.

40G Ethernet transceiver is developed based on several standard sizes. CFP (C-type pluggable) transceiver has 12 10Gb/s transmit channels and 12 10Gb/s receiver channels only support a 100G 40G Ethernet ports or up to three Ethernet ports. Its large size, suitable for single-mode fiber optic cable can also be easily matched multimode fiber or copper. CXP-sized transceiver even offers 12 channels in each direction, but smaller sized than the CFP, suited to multi-mode fiber and copper. QSFP (Quad Small Form Pluggable) with comparable dimensions CXP provides four transmit channels and 4 receive channels, offer the current 40G Ethernet multimode fiber and copper applications, one's destiny might also support single-mode applications.

Cisco 40GBASE CFP main function module comprising:

● supports 40GBASE Ethernet and OTU3 standards for

● Compatible with IEEE interoperability in their respective industries and OTU3 Interface

● A variety of interface options Gigabit Ethernet and 40 Gigabit Ethernet connectivity

● Support Digital Optical Monitoring (DOM)

● Supports Cisco quality ID feature

40GBASE CFP commonly used models: CFP-40G-SR4 (multimode 850nm, the transmission distance of 150 meters), CFP-40G-LR4 (single-mode 1310nm, 10-km transmission distance), CFP-40G-FR (single-mode 1550nm, transmission distance of 2 km).

CFP-40G-SR4

In 40GBASE-SR4 CFP module supports a link length of 100 meters and 150 meters respectively optimized multimode fiber optic cable and laser than OM3 OM4. Can achieve high-bandwidth optical fiber link 40 Gigabit Ethernet fiber ribbon terminated 12 fiber female MPO / MTP connection. This CFP module is only compatible with standard IEEE40GBASE-SR4.

CFP-40G-LR4

Cisco 40GBASE-LR4 CFP module is supported through standard G.652 single-mode fiber with duplex SC connector link lengths of up to 10 kilometers. 40 Gigabit Ethernet signals along the four wavelengths. Four wavelength multiplexing and demultiplexing devices in the internal management. This module supports IEEE40GBASE-LR4 CFP and OTU3 C4S1-2D1

CFP-40G-FR

In 40GBASE-FR CFP module supports as long as 2 km link more than a standard single mode fiber with SC duplex connectors lengths. Implements 40 Gigabit serial optical rails. This module supports standards IEEE40GBASE CFP-FR and OTU3 VSR2000-3R2.

For detailed specs, please turn to CFP transceivers website!