CDFP MSA releases v2.0 specifications for 400G modules

The CDFP multi-source agreement (MSA) has released specifications for CDFP 2.0 interoperable hot-pluggable optical modules.

The CDFP multi-source agreement (MSA) has released specifications for CDFP 2.0 interoperable hot-pluggable optical modules.

Designed for client-side interfaces inside the data center, CDFP modules enable high port density in resource-intensive applications in telecommunications, networking, and enterprise computing.

The CDFP interface enables data rates of 25 Gbps over 16 lanes for an aggregate of 400 Gbps on a single module with excellent signal integrity, thermal cooling properties, and EMI protection, the MSA participants assert.

The compact modules are well suited for low-power applications using copper, VCSEL or silicon-photonics-based technology, the consortium adds. The CDFP modules are expected to find use in industry standards targeting 100 m of multimode fiber and up to 2 km of singlemode fiber. For example, the CDFP module can be used for one 400-Gbps interface or to aggregate sixteen 25-Gbps interfaces or four 100-Gbps interfaces.

Providing a high level of integration, performance and long-term reliability, the CDFP 400-Gbps interface is available in short- and long-body versions. The specifications are compatible for use with direct attach cables, active optical cables, and connectorized optical modules.

The CDFP is an obvious candidate for future 400 Gigabit Ethernet use. However, it may not address the full range of such applications -- particularly those over 2 km -- and therefore may have to be complemented by a different module (see "ECOC 2014 Reporter's Notebook: Day 2"). While the industry awaits completion of the 400 Gigabit Ethernet specifications, the CDFP likely will find use in proprietary cabling products aimed at 400 Gbps, sources at ECOC told Lightwave last week..

Founded in 2013 with the objective of defining specifications and promoting industry adoption, the CDFP MSA says it has successfully reached its goals with the completion of mechanical drawings and in-depth design specifications for CDFP 2.0 modules.

CDFP MSA founder-promoter companies are: Avago Technologies, Brocade Communications, IBM Corp., JDSU, Juniper Networks, Molex Inc., and TE Connectivity. Contributing member companies include: FCI, Finisar, Huawei, Inphi, Ixia, Mellanox Technologies, Nextron, Oclaro, Semtech, Sumitomo Electric, Xilinx, and Yamaichi Electronics.

Complete specifications for the CDFP 2.0 interoperable hot pluggable modules and a complimentary white paper titled "CDFP Delivers 400 Gbps Today" are available via the CDFP MSA website.

For more information on optical transceivers and suppliers, visit the Lightwave Buyers Guide.

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