[Arm-netbook] [router] schematics started

[luke.leighton]

On Wed, Sep 18, 2013 at 2:53 AM, Christopher Thomas
<christopher at firemothindustries.com> wrote:
>
>
>
> On Tue, Sep 17, 2013 at 6:19 PM, luke.leighton <luke.leighton at gmail.com>
> wrote:
>>
>> http://rhombus-tech.net/community_ideas/router/
>> http://git.rhombus-tech.net/?p=eoma.git;a=tree;f=pcb/router;
>>
>> aside from the main requirements (i need this for a customer, as a
>> versatile routing and management board) it makes inordinate sense for
>> this to be an extension of the MEB concept.
>>
>> talking to arokux yesterday i'm adding *two* MiniPCIe slots, one is
>> for 3G and the other for WIFI cards.  not sure whether to make them
>> both capable of taking SIMs... ehh, you can always get e.g. HE910s
>> with a SIM holder attached, so i'll make sure the power circuits are
>> up to the job of providing clean power.
>>
>> 9-pin RS232 is needed from the customer.  i'll add a MAX232 to
>> isolate/protect the CPU Card.
>>
>> SATA comes from the MEB concept.  it's there, why not.
>>
>> 44-pin interface for RGB/TTL and I2C, again, why not.  might as well.
>>
>> 4 ports of 10/100 ethernet is completely excessive, but kinda fun.
>> what the heck.
>>
>> thoughts appreciated.
>>
>> l.
>>
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>
>
> It also seems like an extension of the Carrier Board Concept, minus the
> STM32f, and added HUB IC.

 ... yes.

>
> That said, shouldn't the MAX232 be a MAX3232 for 3.3v - 5.5v,

 thank youuu.

> or does your
> client intend to use "True" +/- 10v RS232? (Although, iirc, the MAX3232
> would function almost the same, only more compatibility with other
> interfaces?)
>
> On the run, but I have some recommendations for the 3G/GSM/GPRS stuff, when
> I get back.

 ack.

> --
> Christopher Thomas
> Firemoth Industries, LLC - Owner
> christopher at firemothindustries.com
> 214-458-5990
>
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