“We got the Power” - Modeling for LAN cables development with higher power levels

Higher Power demand

Power over Ethernet (PoE) is a local network technology (LAN technology) which passes electric power along with data on twisted pair Ethernet cabling. LAN cables will soon be handling 100W of power. Because of the increased power, the amount of heat generated and dissipated must now be considered during the design process. 

Efficient Designs

Manufacturing and testing prototypes typically takes 2-3 weeks. To reduce development time, Berk-Tek (USA) created a model to predict the cable temperature rise as a function of design and application environment.  This allows Berk-Tek to be more cost effective, application specific, and better meet customer needs.

A temperature model

Nexans initially created its own model using test results from a Design of Experiments, then subsequently refined it with additional measured data.  Nexans model was first used to find that three of Berk-Tek’s existing cables could handle future PoE power levels. Cables with temperature listings of at least 75°C will resist the temperature aging over time with higher lifespan network infrastructure.

Next step

Currently, this model is being used for the successful development of Berk-Tek cables designed specifically for the PoE market. Nexans will continue to model PoE performance to reduce the development time for new cable development projects. It will increase Berk-Tek share in the PoE market which is expected to grow and reach 1 billion by 2022