USB3: Why it's a bit harder than USB2

Re:USB3: Why it's a bit harder than USB2 by raxxorrax on Wednesday October 07, 2020 @02:38AM (#24705845)

This has also been a problem with USB2 cameras. The signal rates reach physical limits. A 5m cable is probably too long for high speed applications, most camera vendors say that they support only 3m. But if you have a camera in any rugged device, even a bit of EM (electro magnetism) can ruin your connection.

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Re:USB3: Why it's a bit harder than USB2 by cpach on Wednesday October 07, 2020 @02:39AM (#24705853)

What does EM mean in this context?

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Re:USB3: Why it's a bit harder than USB2 by tW4r on Wednesday October 07, 2020 @02:42AM (#24705869)

Based on the context I would guess it stands for electromagnetic interference

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Re:USB3: Why it's a bit harder than USB2 by segfaultbuserr on Wednesday October 07, 2020 @04:14AM (#24706261)

Electromagnetism. On the other hand, obviously any electronic circuit, including USB, is electromagnetic. A more accurate choice of word would be EMI (i.e. electromagnetic interference), or EMC problems (i.e. electromagnetic compatibility problems).

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Re:USB3: Why it's a bit harder than USB2 by oso2k on Wednesday October 07, 2020 @02:43AM (#24705876)

Probably short for Electromagnetism or short for EMF which is short for Electro Magnetic Field.

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