asterisk users - Jul 2005 - Multiple ISDN BRI Units with Asterisk usingBristuff zaphfc in NT mode?

-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Zoltan Szecsei
Sent: zaterdag 16 juli 2005 12:54
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Multiple ISDN BRI Units with Asterisk
usingBristuff zaphfc in NT mode?

 >> Maybe this is rather a hardware question, but I am posting it on this
 >> list because the probability of someone else of you having tried this
 >> is greater here than other places I can think of.
 >>
 >> I have an ISDN card that is setup in NT mode using the zaphfc driver
 >> in bristuff, and I got it working perfectly with one ISDN phone using
 >> a crossover cable and 100 ohm termination at the end of the cable.
 >>
 >> However, if I connect one more ISDN device to the ISDN bus both
 >> devices stop working, so the question is:
 >>
 >> Is it only possible to use one device with a HFC card in NT mode or is
 >> there something else I need to do first to make it work with two 
devices?
 >>

 > Hi Carl,
 > I just started yesterday afternoon with exactly the same setup so you
 > are a bit ahead of me.
 > If anyone answers you directly then please be kind enough to forward
 > their comments to me.
 >
 > I have not even tried to sort out trunks, bristuff or anything yet but
 > it might be worth pointing out that my initial problems were
 > that,using
 > an old pIII motherboard with pci graphics, network plus 2 HFC bri isdn
 > cards, I ran out of IRQs. I had to lock down & exclude the irq for the
 > network card before the 2 ISDN cards woke up. I now have the network &
 > 1 ISDN card on their own IRQ and the graphics and 2nd ISDN card >
 > sharing an IRQ.
 >
 > Maybe this could be a similar problem for you?
 >
 > I'm  using this HW with AAH 1.1
 >
 > Keep in touch,
 >
 > Cheers,
 > Zoltan

My problem turned out to be a termination problem. When using zaphfc 
together with other zap cards, it seems to be of importance in which 
order the drivers are loaded as well - At least in my case it would only 
work right if the X100P driver was loaded before the zaphfc driver.

I have got verything working now, so if you have any questions you are 
more than welcome.

You didn't write if you intended to use the ISDN cards to connect to 
ISDN lines, or if you wanted to create a setup like mine, with the 
card/cards in NT mode, acting as an ISDN switch of it's own.

-- 
Greetings, Carl Andersson a.k.a Zaphod Beeblebrox
    Email: zaphodb@beeblebroxindustries.com - ICQ: 1705837.
    -=*=- FwD VOIP: 645040 - IaxTel VOIP: 17006906266 -=*=-

> Try terminating using 50 ohm resistors as suggested by this guide:
 > http://home.foni.net/~jolly1/download/PBX4Linux-2.5.html
 > in chapter 2.2 (Connect ISDN telephones to your ISDN card.)
 >
 > Best regards,
 >
 > Jan Snelders

I did something along the lines of that, and it works great now.
But instead of terminating with 50 Ohm at one end of the line, I
put 100 Ohm termination in both ends of the line...

Thanks for the help!

-- 
Greetings, Carl Andersson a.k.a Zaphod Beeblebrox
    Email: zaphodb@beeblebroxindustries.com - ICQ: 1705837.
    -=*=- FwD VOIP: 645040 - IaxTel VOIP: 17006906266 -=*=-

On Sun, Jul 17, 2005 at 06:15:44AM +0200, Carl Andersson
wrote:
> 
> My problem turned out to be a termination problem. When using zaphfc 
> together with other zap cards, it seems to be of importance in which 
> order the drivers are loaded as well - At least in my case it would only 
> work right if the X100P driver was loaded before the zaphfc driver.
There seems to be some voodoo with zaphfc and ztcfg being run a number
of times . Try disabling the post-install actions in /etc/modules.conf
or /etc/modprobe.conf , and run ztcfg manually later.

-- 
Tzafrir Cohen         | tzafrir@jbr.cohens.org.il | VIM is
http://tzafrir.org.il |                           | a Mutt's  
tzafrir@cohens.org.il |                           |  best
ICQ# 16849755         |                           | friend

Carl Andersson wrote:
> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com
> [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Zoltan 
> Szecsei
> Sent: zaterdag 16 juli 2005 12:54
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] Multiple ISDN BRI Units with Asterisk
> usingBristuff zaphfc in NT mode?
>
> >> Maybe this is rather a hardware question, but I am posting it on
this
> >> list because the probability of someone else of you having tried
this
> >> is greater here than other places I can think of.
> >>
> >> I have an ISDN card that is setup in NT mode using the zaphfc
driver
> >> in bristuff, and I got it working perfectly with one ISDN phone
using
> >> a crossover cable and 100 ohm termination at the end of the cable.
> >>
> >> However, if I connect one more ISDN device to the ISDN bus both
> >> devices stop working, so the question is:
> >>
> >> Is it only possible to use one device with a HFC card in NT mode
or is
> >> there something else I need to do first to make it work with two 
> devices?
> >>
>
> > Hi Carl,
> > I just started yesterday afternoon with exactly the same setup so you
> > are a bit ahead of me.
> > If anyone answers you directly then please be kind enough to forward
> > their comments to me.
> >
> > I have not even tried to sort out trunks, bristuff or anything yet but
> > it might be worth pointing out that my initial problems were
> > that,using
> > an old pIII motherboard with pci graphics, network plus 2 HFC bri isdn
> > cards, I ran out of IRQs. I had to lock down & exclude the irq for
the
> > network card before the 2 ISDN cards woke up. I now have the network
&
> > 1 ISDN card on their own IRQ and the graphics and 2nd ISDN card >
> > sharing an IRQ.
> >
> > Maybe this could be a similar problem for you?
> >
> > I'm  using this HW with AAH 1.1
> >
> > Keep in touch,
> >
> > Cheers,
> > Zoltan
>
> My problem turned out to be a termination problem. When using zaphfc 
> together with other zap cards, it seems to be of importance in which 
> order the drivers are loaded as well - At least in my case it would 
> only work right if the X100P driver was loaded before the zaphfc driver.
>
> I have got verything working now, so if you have any questions you are 
> more than welcome.
>
> You didn't write if you intended to use the ISDN cards to connect to 
> ISDN lines, or if you wanted to create a setup like mine, with the 
> card/cards in NT mode, acting as an ISDN switch of it's own.
>
Hi Carl,
Thanks for this confirmation.
My setup is 2 HFC cards to 2 ISDN lines, so nope, not like yours.
Cheers,
Zoltan.

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