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CFP/CFP2/CFP4 Optical Module

CFP MSA is the first industry standard to support 40 and 100Gbe Ethernet optical transceivers. The CFP multi-source protocol is to define a packaging specification for hot-swappable optical modules to promote 40 and 100Gbit/s applications, including next-generation high-speed Ethernet applications (40 and 100GbE). The package types of 100G CFP series optical modules are CFP, CFP2, and CFP4.

Introduction of CFP/CFP2/CFP4 Optical Module

The size of the CFP optical module is the largest, the CFP2 optical module is one-half of the CFP, the CFP4 optical module is one-fourth of the CFP, and the package style of the QSFP28 optical module is smaller than that of the CFP4 optical module. The volume of these three modules ,As shown below. What needs to be reminded is that CFP/CFP2/CFP4 optical modules cannot be used interchangeably, but they can be used simultaneously in the same system.

CFP optical modules support transmission on single-mode and multi-mode optical fibers with multiple speeds, protocols, and link lengths as required, including all physical medium-related (PMD) interfaces included in the IEEE802.3ba standard.

The CFP optical module is designed on the basis of the small pluggable optical module (SFP) interface, with a larger size and supporting 100 Gbps data transmission. The CFP optical module can support a single 100G signal, OTU4, one or more 40G signals, OTU3 or STM-256/OC-768.

100G CFP2 is often used as a 100G Ethernet interconnection link, with higher transmission efficiency than CFP optical modules, and its smaller size makes it suitable for higher density wiring.

The 100G CFP4 optical module has the same speed as the CFP/CFP2 optical module. The transmission efficiency is greatly improved, but the power consumption is reduced, and the cost is lower than CFP2. Therefore, the CFP4 optical module has irreplaceable advantages. Talk about the advantages of CFP4 optical modules.

Advantages of CFP4 optical module

1. Higher transmission efficiency: The early 100G CFP optical module achieved a transmission rate of 100G through 10 10G channels, while the current 100G CFP4 optical module achieves 100G transmission through 4 25G channels, so the transmission efficiency is higher. Stability is stronger.

2. Smaller volume: The volume of CFP4 optical module is one-fourth that of CFP, which is the smallest optical module in the CFP series of optical modules.

3. Higher module integration: The integration level of CFP2 is twice that of CFP, and the integration level of CFP4 is four times that of CFP.

4. Lower power consumption and cost: The transmission efficiency of CFP4 optical modules is significantly improved, but the power consumption is reduced, and the system cost is also lower than that of CFP2.

In summary

The first-generation 100G optical module was a very large CFP optical module, and then CFP2 and CFP4 optical modules appeared. Among them, the CFP4 optical module is the latest generation of 100G optical modules, and its width is only 1/4 of the CFP optical module. The packaging style of the QSFP28 optical module is smaller than that of the CFP4 optical module, which means that the QSFP28 optical module has a higher port density on the switch.

Although the QSFP28 optical module has many advantages, it is only one of many solutions for 100G networks. For specific applications such as data centers and switch rooms, choosing the right one is the best solution.

HUANET provide all kinds of 100G CFP/CFP2/CFP4 and 100G QSFP28 with high quality and good compatibility at a lowest price.

Post time: Jul-09-2021