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From: Joel Koltner on 29 Jun 2010 13:01
John Walliker wrote:
> Here it is:
>
> http://www.usb.org/developers/Deprecation_Announcement_052507.pdf
>
> It turns out that they are only partially obsolete! The mini-A and
> mini-AB connectors have not been allowed in new USB designs since May
> 2007, but the mini-B connector is still permitted.

Fair enough -- when one says "mini-USB connector" I think it's safe to say the
vast majority of people are thinking "mini-B" -- mini-A and mini-AB have never
been particularly common. (Especially mini-A ... mini-AB does show up on a
fair number of higher-end cell phones, whereas mini-A seemed confined to a few
things like digital cameras with PICTBridge printing support.)

The other thing to keep in mind is that, despite what the USB Implementers
Forum guys might like, their standard has met with the kind of wild success
that means that the "real" standards are now much more driven by market forces
than any formal decree on their part. I mean, companies like Dell and Apple
and Microsoft will definitely pay attention, but for every product they build
there's some no-name company in Asia building 100 USB-connected products
who'll just use whatever connector happens to be most popular and/or cheapest.

> However, in the specific case of battery chargers, the only connectors
> that are permitted are standard-A receptacle or a micro-B captive
> cable.

....and that's where the market forces are going against them. Their statement
came out in over three years ago now, and I think it'll be several more years
before battery chargers with micro-B connectors are more prevalent than those
with mini-B connectors -- those companies in China cranking out thousands of
them per day aren't too concerned with the official USB IF decrees. :-)


---Joel

From: krw on 29 Jun 2010 19:31
On Tue, 29 Jun 2010 04:26:38 -0700 (PDT), John Walliker <jrwalliker(a)gmail.com>
wrote:

>On 28 June, 23:19, "k...(a)att.bizzzzzzzzzzzz" <k...(a)att.bizzzzzzzzzzzz>
>wrote:
>> On Mon, 28 Jun 2010 09:38:08 -0700, "Joel Koltner"
>>
>> <zapwireDASHgro...(a)yahoo.com> wrote:
>> >John Walliker wrote:
>> >> The mini-USB connector is obsolete, so if you have a choice it would
>> >> be better to use micro-USB in your product.
>>
>> >What makes you think mini-USB connectors are obsolete?
>>
>> News to me too. �I'd like a cite for that. �We just replaced one because the
>> vendors are constantly obsoleting various P/Ns, but there are always others.
>>
>
>Here it is:
>
>http://www.usb.org/developers/Deprecation_Announcement_052507.pdf
>
>It turns out that they are only partially obsolete! The mini-A and
>mini-AB connectors have not been allowed in new USB designs since May
>2007, but the mini-B connector is still permitted. I had forgotten
>that detail - or perhaps I didn't read the announcement carefully
>enough when I first came across it.
>
>However, in the specific case of battery chargers, the only connectors
>that are permitted are standard-A receptacle or a micro-B captive
>cable. See section 4.1 of the USB Battery Charging Specification v1.1
>which is at
>
>http://www.usb.org/developers/devclass_docs/batt_charging_1_1.zip

Thanks. I printed the above out today but by the time the printer decided to
work I was busy with other fires. The boss isn't going to like hitting the
product, yet again. Since we own both ends of the cable, unless Mini-B
connectors go away completely, there isn't much worry. ;-)

From: Dirk Bruere at NeoPax on 8 Jul 2010 12:06
On 27/06/2010 23:29, John Walliker wrote:
>> I am rapidly coming to the conclusion I will have to pay around $20 for
>> a mains switching PSU module, eg;http://www.maplin.co.uk/Module.aspx?ModuleNo=227631
>
> Try contacting Powerpax UK
>
> John

Thanks - that's obviously where Maplin get theirs from.

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.blogtalkradio.com/onetribe - Occult Talk Show
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