[cisco-voip] FXS problems

[Jared Mauch]

On Fri, Dec 31, 2004 at 08:50:10AM -0500, Campbell, Jeremy wrote:
> Erick,
> 
> Thanks for the response.  Here is the info from `show controller t1` on
> the 2651XM router:
> 
> T1 0/0 is up.
>   Applique type is Channelized T1
>   Cablelength is long gain36 0db
>   No alarms detected.
>   alarm-trigger is not set
>   Version info Firmware: 20040202, FPGA: 11
>   Framing is ESF, Line Code is B8ZS, Clock Source is Line.
>   CRC Threshold is 320. Reported from firmware  is 320.
>   Data in current interval (863 seconds elapsed):
>      0 Line Code Violations, 0 Path Code Violations
>      197 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
>      197 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail
> Secs
>   Total Data (last 24 hours)
>      0 Line Code Violations, 0 Path Code Violations,
>      19523 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
>      19523 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0
> Unavail Secs
> 
> 
> I seem to have many slip seconds.  Should I try changing the clocking
> source to see what happens?  Should I contact the line vendor to verify

	Yes

> what settings should be used?  

	Yes

	Usually, you take the clock source from the line, but if this is a
point-to-point T1 between two of your sites, you may need to
provide timing yourself.

	ie: one side should be set for line, the other should be set
for internal.

	This may fix your problem..  always be wary of errored seconds
of any time (slip, etc..) 

	- jared


> Your assistance is very much appreciated.  
> 
> Many thanks,
> Jeremy
> 
> ________________________________________
> Jeremy P. Campbell
> Information Systems Director
> Town of Davidson, NC
> 704-892-7591 ext. 248 - voice
> 704-892-3971 - fax
> 
> -----Original Message-----
> From: Erick B. [mailto:erickbe at yahoo.com] 
> Sent: Thursday, December 30, 2004 10:46 AM
> To: Campbell, Jeremy; cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] FXS problems
> 
> What type of hardware modules?
> 
> How is the network-clocking set up?
> 
> If you do a 'show controller t1' do you have slip
> seconds (if you have T1s)? 
> 
> Any sort of error will cause fax's to fail off and on.
> On the XM routers you need to make sure the clocking
> is setup right so there are no errors. The Slip second
> are sign clocking is not right. It may not be the T1
> circuit but due to clock configuration on the router
> itself.
> 
> Erick
> 
> --- "Campbell, Jeremy" <jcampbell at ci.davidson.nc.us>
> wrote:
> 
> > I have a FXS card in a Cisco 2651XM router, and I'm
> > having trouble with
> > faxing and data transmissions across through the FXS
> > ports.  Does anyone
> > have a some advice on what to look for or try?  
> > 
> >  
> > 
> > Thanks,
> > 
> > Jeremy
> > 
> >  
> > 
> > ________________________________________
> > Jeremy P. Campbell
> > Information Systems Director
> > Town of Davidson, NC
> > 704-892-7591 ext. 248 - voice
> > 704-892-3971 - fax
> > 
> >  
> > 
> > > _______________________________________________
> > cisco-voip mailing list
> > cisco-voip at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-voip
> > 
> 
> 
> 
> 		
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-- 
Jared Mauch  | pgp key available via finger from jared at puck.nether.net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.