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Basics

How are optical interconnects being miniaturized?

August 3, 2022 By Jeff Shepard Leave a Comment

Fiber optic connector trends include a proliferation of new and smaller designs and, according to NTT, optical connector standardization activities are one of the most active areas at the International Electrotechnical Commission (IEC). As of February 2021, IEC SC 86B (Fibre optic interconnecting devices and passive components) published the second largest number of documents in […]

Filed Under: Basics, EE sync, Electronics, FAQ, Featured, optical Tagged With: faq

What’s different about space-rated connectors?

August 1, 2022 By Jeff Shepard Leave a Comment

Space-grade connectors are generally spin-offs of military-grade designs. Compared with common commercial connectors, there’s a much smaller variety of space-grade connectors. However, commercial off-the-shelf (COTS) and COTS+ connectors are increasingly used in cost-sensitive missions such as CubeSats. This FAQ begins with a look at the unique operating conditions in space and how those conditions impact […]

Filed Under: Basics, Electronics, FAQ, Featured Tagged With: faq

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

How QSFP-DD and OSFP Loopback modules are supporting multiple IO interfaces

July 5, 2022 By Ed Cady Leave a Comment

IO Loopbacks connect digital data streams to their source without purposeful processing or modification. This serves as a diagnostic test for a device and other nodes in the network infrastructure. The return signal is compared with the transmitted signal. For several generations of electronic equipment, using a short cable assembly, molded very-high-density cable interconnect (VHDCI), […]

Filed Under: Basics, Featured Tagged With: faq

Why connector return loss causes signal problems

June 13, 2022 By Eric Bogatin Leave a Comment

return loss

Return loss can affect insertion loss, the amount of energy that reaches a receiver.

Filed Under: Basics, FAQ, Featured, Microwave, RF

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

D-sub connectors: Everyone speaks of them incorrectly

May 16, 2022 By Martin Rowe 1 Comment

DA-29

You probably don’t know it, but you’ve been referring to most D-sub connectors incorrectly for your entire career.

Filed Under: Basics, board-to-board, cable-to-board, D-Sub, FAQ, Featured Tagged With: Sealevel Systems

What is the common impedance of a twisted pair?

May 9, 2022 By Eric Bogatin 1 Comment

Understanding impedance in twisted-pair cables help you avoid signal problems.

Filed Under: Basics, EE sync, Electrical/Instrumentation, Ethernet, FAQ, Featured, Industrial, IoT Tagged With: faq

The connector is often the EMI problem

April 19, 2022 By Eric Bogatin Leave a Comment

It only takes 3&microA of current to fail an EMC test, and a connector can produce that much.

Filed Under: Basics, EE sync, FAQ, Featured

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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