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How internal fiber-optic connector designs are advancing

October 19, 2023 By Ed Cady Leave a Comment

Inside-the-box copper connector and cable IO-Link standards for data centers have been a significant focus of systems product development, particularly within consortia and industry standards groups. Some recent examples are internal 400G and 800G PECFF Top-of-Board, Ethernet, CXL, and the PCIe use of SFF TA 1002/1020 connectors. Other examples include twin-axial cables for memory, storage, […]

Filed Under: Basics, Featured Tagged With: cables, connectors, datacenters, fiberoptic

What plating options are available for high-power connectors?

October 18, 2023 By Jeff Shepard Leave a Comment

Plating options are numerous and tend to fall into four categories: noble metals, passive metals, alloys, and dispersions. The first three categories are well established, while dispersions are just beginning to appear in response to the need for high-power connectivity in electric vehicle (EV) charging and similar applications. This tutorial starts with a brief review […]

Filed Under: FAQ, Featured Tagged With: connectors, faq

Pluggable IO interface technology driving 224G PAM4 cable and connector developments

May 3, 2023 By Ed Cady Leave a Comment

In this article, we’ll discuss the recent 200+G PAM4 per-lane interconnect developments supported by various consortia, standards bodies, and new product announcements.  The latest 2023 Ethernet Alliance Roadmap shows the demand for 200+G per-lane pluggable modules, connectors, copper, and optical cable products by 2025. Based on their chart below and the interface roadmap, several different lane-count versions […]

Filed Under: Basics, Featured Tagged With: cables, connectors, faq, pluggable

How high pin-count socket connectors are supporting new processor-chip applications

January 31, 2023 By Ed Cady Leave a Comment

Datacenter server processor chips have proven valuable as pluggable and removable devices for the socket connectors mounted to a server’s main PCB board. However, the number of contacts per socket connector has dramatically risen over the last few years. New chips offer 3000 to 5000 or more contact pads per flip chip.  Typically, the socket […]

Filed Under: Basics, Featured Tagged With: cables, chips, connectors, cpu, datacenter, intel, processors

How the terabit class of pluggable cables and connectors is advancing

January 18, 2023 By Ed Cady Leave a Comment

The world of gigabits began some 25 years ago, with a progression of interface lanes and links — from 100G and 200G to 400G and then 800G using IO standard and proprietary connectors and cables. Believe it or not, gigabit lanes were first used in 1999. Today, we’re entering the terabit phase with interface links […]

Filed Under: Basics, Featured Tagged With: cables, connectors, credo, datacenter, gigabit, intel, keysighttechnologies, multilane, nokia, osfp, sofp-xd, terabit

How new USB4.2 80G cable links will support cost-effective connectivity

October 24, 2022 By Ed Cady Leave a Comment

The USB Promoter Group recently announced the November release of the USB4 Version 2.0 specification, a significant update to enable up to 80 Gbps of data performance over the USB Type-C cable and connector. The USB Type-C and USB Power Delivery (USB PD) specifications will also be updated to enable this higher level of data […]

Filed Under: Basics, Featured Tagged With: activecopper, activeopticalcables, cables, connectors, copper, passivecopper, specifications, USB, usb4.2

Will internal IO copper cables for data centers become standardized?

August 23, 2022 By Ed Cady Leave a Comment

Data-center passive DAC external cables have been standardized and interoperable for decades. However, the mating, inside-the-box cables have yet to be fully standardized. In general, inside-the-box IO interface interconnections have been a competitive value point for those OEMs and suppliers that offer quality options. Providing reliable connectors and twin-axial cables configured in an ideal layout […]

Filed Under: Basics, Featured Tagged With: cables, connectors, datacenters, io, Molex, ocpserverproject

New developments in 212+G per-lane data-center connectors and cables

July 22, 2022 By Ed Cady Leave a Comment

Several deep-packet inspection chips and test instrumentation applications are using next-generation speed-rate IO application-specific integrated circuit (ASIC) chips. These chips combine several circuits in one and are customized for a particular use.  This is different than what the current server and switch markets are typically using. These developers are experienced with the 200+ per lane […]

Filed Under: Basics, Featured Tagged With: asic, cables, connectors, dac

Driving standards: The latest liquid-cooling cables and connectors for data centers

June 7, 2022 By Ed Cady Leave a Comment

Passive and active direct liquid cooling for modules and chassis immersion implementations are becoming more commonly used to cool high-wattage devices — such as graphics processing units (GPUs) and switch application-specific integrated circuits (ASICs).  This seems to be driving an expanding fluid connector and cable market with higher-volume units as applications now include hyperscaler and […]

Filed Under: Basics, Featured Tagged With: cables, connectors, liquidcooling

Wire and fiber optic geometries offer high-speed cable transmission options

April 15, 2022 By Ed Cady Leave a Comment

The latest high-speed transmission cables are benefitting from the use of optic-fiber and copper wire options, which are offering unique form factors and customizable solutions. Typically, data-transmission copper wire and optical-fiber conductors are round or cylindrical. The addition of silver plating on the copper conductor facilitates the high-frequency electrical transmission path. Fiber conductors are foundry […]

Filed Under: Basics, EE sync, Electronics, FAQ, Featured, fiber, Markets, optical, Telecom/Data Tagged With: cables, conductors, connectors, copper, opticfiber, pluggable, termination

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