[CUBE] [CUBE]

atoa at krak.net atoa at krak.net
Fri Aug 6 08:31:53 PDT 2004



On Fri, 6 Aug 2004, TonVanHest wrote:

>
> Op 6-aug-04 om 14:51 heeft atoa at krak.net het volgende geschreven:
>
>> Sure they can. If they do, though, they are out of spec, as I understand 
>> it. Which means that they shouldn't be marketed as being within spec
>
> That might be a possibility but IMO Apple then should not have talked about 
> USB (which is a standardized connector). besides that, if I look at 'About 
> this Apple" It states that there is 500 ma available on the bus. I also 
> checked the service manual and nothing there leads me to the believe the USB 
> hubs are non-standard.

1) You are confusing devices and hubs.
2) Looking at Table 7-7 of the Universal Serial Bus Specification
Revision 2 reveals that Minimum High Power Port (out) is in fact 500 mA. 
There is no maximum stated. What am I missing?

>
> And "if they are standard, they should be standard in all counts".
>
> Met vriendelijke groeten,
> Ton van Hest
>
>
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