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From: "Kent R. Spillner" <sl4mmy@zerosphere.org>
To: "9fans" <9fans@9fans.net>
Subject: Re: [9fans] building blocks speaking 9p
Date: Fri, 28 Jan 2022 13:32:37 -0600 (CST)	[thread overview]
Message-ID: <1643398357.292815497@apps.rackspace.com> (raw)
In-Reply-To: <CAJQ9t7gXsgAFKKsQ2P-mYsghDrBLObPF6mv-7kVewCMuEw=xwA@mail.gmail.com>

> What does it do that PoE doesn't do infinitely better?

For most of its life USB was only 5 V: https://en.wikipedia.org/wiki/USB#Power

PoE is (mostly) 48 V: https://en.wikipedia.org/wiki/Power_over_Ethernet#Standard_implementation

PoE also requires the use of either special PoE switches or power injectors,
so at the time USB was first created it was cheaper & made more sense for PC
and laptop hardware.

Also, back then the USB folks were all like "4 different PoE standards?! That's
ridiculous!"  https://xkcd.com/927/  ;)



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  parent reply	other threads:[~2022-01-28 19:32 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-27 22:57 Bakul Shah
2022-01-28  2:55 ` Thaddeus Woskowiak
2022-01-28  3:31 ` Lucio De Re
2022-01-28  5:16   ` Bakul Shah
2022-01-28 10:16     ` Lucio De Re
2022-01-28 19:01       ` Charles Forsyth
2022-01-28 21:26         ` Bakul Shah
2022-01-28 21:37           ` Eli Cohen
2022-01-28 20:54       ` Tony Mendoza
2022-01-28 20:59       ` Tony Mendoza
2022-01-28 21:03         ` ori
2022-01-28 21:07           ` Tony Mendoza
2022-01-28 21:06         ` Eli Cohen
2022-01-28 21:16           ` Tony Mendoza
2022-01-28 21:27             ` Eli Cohen
2022-01-28 21:33               ` david
2022-01-28 21:46                 ` Tony Mendoza
2022-01-28 22:23                   ` David Boddie
2022-01-29  1:04                 ` Lyndon Nerenberg (VE7TFX/VE6BBM)
2022-01-29  2:08                   ` David Boddie
2022-01-29  3:36                     ` Tony Mendoza
2022-01-29 18:03                     ` David Boddie
2022-01-29  2:32           ` Thaddeus Woskowiak
2022-01-29 20:04             ` [9fans] aiju boards Lyndon Nerenberg (VE7TFX/VE6BBM)
2022-01-28 19:32   ` Kent R. Spillner [this message]
2022-01-28  4:54 ` [9fans] building blocks speaking 9p ori
2022-01-28 20:55 ` Lyndon Nerenberg (VE7TFX/VE6BBM)
2022-01-29  9:16 ` Skip Tavakkolian
2022-01-29 11:56   ` Frank D. Engel, Jr.
2022-01-29 12:14     ` Frank D. Engel, Jr.
2022-01-29 12:30       ` Frank D. Engel, Jr.
2022-01-29 13:24         ` cinap_lenrek
2022-02-15  3:07 ` Lyndon Nerenberg (VE7TFX/VE6BBM)
2022-01-29 20:53 Lyndon Nerenberg (VE7TFX/VE6BBM)

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