[Asterisk-Users] torisa rev b

[it]

Hi,Steve,
     Can you tell me the different between the Rev B and Rev A? I want to
config the span 1 of Torisa as pri_cpe and span 2 as pri_net and use a
crosscable to link them to test the E1 in asteriskand. But the Rev A can't
be a clock master,so it is impossible for me to test it.  Help me please.

john


----- Original Message -----
From: "Steve Underwood" <steveu at coppice.org>
To: <asterisk-users at lists.digium.com>
Sent: Sunday, April 13, 2003 4:49 PM
Subject: Re: [Asterisk-Users] torisa rev b


> horape at highconnection.com.ar wrote:
>
> >¡Hola!
> >
> >torisa.c (from zaptel 0.50) says:
> >
> >#define MASTERVAL 0x41          /* Enable E1 master clock on Rev. B board
*/
> >
> >Does that mean that there is a torisa revB? If so, are the schematics
> >downloadable from somewhere? (www.zapatatelephony.org only has Rev. A
> >ones)
> >
> >Does the Rev. A support E1? (just changing the DS2151 for DS2153, the DS
> >crystal and closing the E1 jumpers, or something else is needed?)
> >
> >Thanks,
> >
> Rev A works OK as a slave E1, but it cannot be a clock master. Rev B was
> a minor update to fix that. The changes are quite minor. I don't know if
> it got past the planning stage to actual artwork, though. As a T1 card
> Rev A works OK as both a clock master and a clock slave. The changes you
> describe will make Rev A work OK as a pair of clock slave E1 ports.
>
> Regards,
> Steve
>
>
>
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