Feature: Connectors
C
High-density compute and connectivity drive the development of the CS connector
By Michael Akinla, Business Manager, Central Europe North, Panduit EMEA
onnectors are an essential component in any electronic and electrical equipment. The connector designers and standards bodies that support the development of the communications industry are crucial to the expansion of high- speed data systems to meet the next connectivity
requirements of high-performance computing.
Data complexity As network bandwidth doubles every 18 months (Edholdm’s law), provisions have to be made to distribute this additional workload. Whereas previously 10Gb or 40Gb backbones were suffi cient for all but the highest-performance compute needs, many networks are now hosted on a minimum of 100Gb, or even 400Gb. T is growth in data complexity and speed will soon bring 800Gb technology to support the platforms for the latest artifi cial intelligence, machine learning and other data-hungry applications. As the transition to 400Gb backbones occurs, and the port
density across racks in data centres and enterprise technology spaces increases, the new connector specifi cation was already in development and with the standards committees. T e CS connector specifi cation is supported by the CS consortium, a group of fi bre-connectivity manufacturers formed to promote the new 400Gb fi bre-optic connector. T e CS connector increases the number of duplex optical links
available by approximately 40% per rack unit (RU) designation. It has been designed to allow two duplex connectors in both 400G transceiver form factors, QSFP-DD and OSFP. T e fi bre connector was not only designed to off er high density, but also low insertion force and high return loss, comparable with LC connectors. T e CS interface was developed as a key part of the industry’s eff ort to enable higher-density, high-speed solutions. T e QSDP-DD and OSFP MSA (multi-source agreement)
specifi cations defi ne a new cage/connector system with an additional row of contacts, providing an eight-lane electrical
36 July/August 2021
www.electronicsworld.co.uk
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