[Asterisk-Users] HDLC link unstable, yellow alarm on

[Steve Totaro]

E1 PRI has only one D channel and it is correctly defined as channel 16
in this config.  You probably just need a T1/E1 crossover between
asterisk and the PBX.  Just cross pin one with four and two with five.
I have even cut a cat5 cable, stripped the wires and crossed the pins
appropriately and taped it up with electrical tape when in a pinch or
just for testing.  Obviously you will want to make a real crossover once
you determine this is what you need.

The above is assuming that your PBX is configured with E1 PRI CCS HDB3

Thanks,
Steve


> 
> If I remember correctly an E1 has two D-Channels. Check your notes on
> what channels 31, 32 really do.....
> 
> On 12/7/05, Laszlo Megyer <laszlo.megyer at gmail.com> wrote:
> > Hey folks,
> >
> > I have my linuxbox connected to a PBX through a digium te110p card,
E1
> line.
> > The asterisk is set up to be the timing master for the line.
> >
> > recently run into the following error message when starting
asterisk:
> >
> > The message:
> > ---------
> >   == Primary D-Channel on span 1 down
> > Dec  7 11:34:02 WARNING[1105]: chan_zap.c:2282 pri_find_dchan: No
> > D-channels available!  Using Primary channel 16 as D-channel anyway!
> >   == Primary D-Channel on span 1 up
> >
> > Also the yellow alarm is not cleared on the PBX side. Any
> > recommendations for the problem?
> >
> >
> > Or should I use Tie-line connection between the PBX and asterisk
> somehow?
> >
> > thanks,
> > lez
> >
> > config files follow:
> >
> >
> >
> > my /etc/zaptel.conf:
> > -------------------8<-----------
> > span=1,0,0,ccs,hdb3
> > bchan=1-15,17-31
> > dchan=16
> >
> > my /etc/asterisk/zapata.conf:
> > ----------------8<-------------------
> > [trunkgroups]
> >
> > [channels]
> >
> > spanmap => 1,1,1
> >
> > usecallerid=yes
> > hidecallerid=no
> > language=en
> > callwaiting=no
> > threewaycalling=yes
> > transfer=yes
> > echocancel=yes
> > echotraining=yes
> > callreturn=yes
> >
> > rxgain=0.0
> > txgain=0.0
> >
> > callgroup=1
> > pickupgroup=1
> >
> > immediate=no
> >
> >
> > ; LOCAL CONFIGS:
> > context = internal
> >
> > signalling = pri_net
> > group = 1;
> > channel => 1-15,17-31
> >
> > switchtype = national
> > _______________________________________________
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> 
> 
> --
> ---
> Andrew Latham - AKA: LATHAMA (lay-th-ham-eh)
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