What will the Connectivity Technology of Tomorrow be?

What is happening
The cornerstones for 40GBASE-T are in evidence. The focus is on data center infrastructure which will inevitably have to migrate to 40 Gigabit Ethernet over the next few years. Fiber optic or Twinax cabling could provide the necessary capacity. But traditional twisted-pair copper cabling remains the less expensive and more flexible solution – preferably with the universal, handy RJ45 format for connectivity technology.

Consequently 40GBASE-T is the order of the day. The IEEE is likely to specify a transmission channel with two connectors limited to 30 meters. The transmission frequency is to be raised to 1600 MHz – with leeway up to 2000 MHz.

Good to know
The organizations IEEE, ISO / IEC and TIA are working concurrently on specifications for classes, categories, channels and connectors. They will in part define different parameters.

The focus of the current debate is the future Category 8. TIA sees this as all-inclusive. ISO / IEC differentiates: Class I channel with Cat. 8.1 components and Class II channel with Cat. 8.2 components. The difference: Class I requires the well-known and reliable RJ45, whereas Class II allows three different faces which are not compatible with each other or with RJ45.

There isn’t really any alternative to universal, top-quality RJ45 solutions. For the time being, RJ45 will remain number one – for 40GBASE-T, too.

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Dr. Thomas Wellinger

By Dr. Thomas Wellinger

Market Manager Data Center