[asterisk-users] TE405P intermittent yellow alarm

[Steve Totaro]

Richard van der Hoff wrote:
> Folks,
>
> I really hope you can help me here - I'm beginning to tear my hair out!
>
> About 10 days ago my company moved to a new office. As a result of this,
> we've plugged our PBX box, which has happily been running for the last
> three years, into our new E1 line. Since then, I've been seeing
> intermittent yellow alarms. Obviously, since this was working fine in
> the old office, the thing to suspect is the new line - but the telco
> (British Telecom) aren't really helping much.
>
> The box is a 2.4GHz Intel box, with a TE405P installed in it (we're only
> using one of the spans). I'm using the zaptel drivers version 1.4.4
> (I've also tried 1.0.2 with similar results). zaptel.conf has:
>
> span=1,1,0,ccs,hdb3,crc4
> bchan=1-15,17-31
> dchan=16
>
> Essentially it runs fine for a few hours; then zttool reports yellow
> alarm and calls can be made neither in nor out. After a while this
> clears itself again and all is well for another few hours.
>
> At this point, I'd really like to know what a yellow alarm actually
> means. I've read that it indicates that that the other end of the E1 is
> in an alarm condition: however BT's terminating unit seems quite happy
> with no alarm conditions at all.
>
> So, really hoping that someone can shed some light on what this might
> all mean.
>
> Cheers,
>
> Richard
>
>
>   
Check your cabling.  Replace it with new stuff.  Re-punch everything. 

It is obviously somewhere in the line.  If the above does not fix it, 
maybe you can get a lucky and get a good tech out that will stick around 
to see the issue.

Thanks,
Steve