[Asterisk-Dev] Strange situation with two Digium E100Ps..

[cf at internetit.dk]

Hi again,

Well naturally all the info on the web is set up TE410P or similar with several spans on one card.. Sorry my mistake

Kind regards,

Claus
----- Original Message ----- 
From: "Peter Svensson" <psvasterisk at psv.nu>
To: "Asterisk Developers Mailing List" <asterisk-dev at lists.digium.com>
Sent: Thursday, September 09, 2004 10:56 AM
Subject: Re: [Asterisk-Dev] Strange situation with two Digium E100Ps..


> On Thu, 9 Sep 2004 cf at internetit.dk wrote:
> 
> > Hi Guys,
> > 
> > I have this strange issue with two single E1 cards (E100P), apparrently when having a zaptel.conf looking like the following (which should be correct according to the instructions found everywhere)
> > 
> > span=1,1,0,ccs,hdb3,crc4
> > bchan=1-15
> > bchan=17-31
> > dchan=16
> > 
> > span=2,2,0,ccs,hdb3,crc4
> > bchan=32-46
> > bchan=48-62
> > dchan=47
> 
> [snip]
>  
> > When changing to:
> > 
> > span=1,1,0,ccs,hdb3,crc4
> > bchan=1-15
> > bchan=17-31
> > dchan=16
> > 
> > span=2,1,0,ccs,hdb3,crc4
> > bchan=32-46
> > bchan=48-62
> > dchan=47
> > 
> > The error goes away and all channels are functional.. But according to info regarding zaptel.conf this means that you use both cards as timing source?!
> > It doesn't seems to have any effect on the system, but still a little strange.
> 
> The timing is only per card and cannot be carried between cards. One 
> channel on each card needs to be the timing source. For the E100P the 
> timing source should either be 1 (external timing) or 0 (the E100P is the 
> clock source). 
> 
> For some setups it would have been advantageous to be able to derive the 
> timing of one card from another. I do not know if it is even possible 
> using the hardware on the E100P/TE405P cards. I guess some form of pll in 
> software could be used. I don't think it exists yet. There was some 
> discussion a month ago or so.
> 
> Peter
> 
> 
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