[Asterisk-Users] TDM04B vs Dell

[Tim Jackson]

TDM400's use the wcfxs module to drive both FXO and FXS ports on them.

I have an IBM xSeries 305 (1U P4 2.4ghz 1gb of RAM) server and I just
picked up a TDM04B today, and I am getting the exact same problem. 

When I make calls to/from the TDM04B card I get this really really
staticky sound. Calls show up however. Any resolutions to this?

-Tim

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Rich
Adamson
Sent: Wednesday, January 05, 2005 6:54 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] TDM04B vs Dell

> I've struggled for several days trying to get a Digium TDM04B 4-port
> wxfco card working on a Dell 1U PowerEdge 750 machine running
> Fedora Core 1. I finally got a call back from Digium who indicated
that
> there is a fundamental conflict between the card and the PowerEdge
> having to do with PCI interrupts. Asterisk version is stable v1-0
12/29/04.

That sounds a little hard to believe.

> The symptoms of the problem were as follows:
> 
> 1. issue "modprobe zaptel" which immediately returns with no feedback
> 
> 2. issue "modprobe wcfxo" which returns
> 	init_module: No such device
> 	Hint: isnmod errors can be caused by incorrect module
parameters, 
> including invalid IO or IRQ parameters
> 
> 3. issue "modprobe wcfxs" which immediately returns with no feedback,
however
> the four lights on the card go on and then the machine locks up
completely, 
> requiring
> a power cycle to get it running again. After the power cycle, if I
look in 
> /var/log/messages

If you have a tdm04b, that says you have four fxo ports. Why are you
trying to load wcfxs?

> I see a long cycle of the following messages before reboot:
> 	kernel: Dazed and confused, but trying to continue
> 	kernel: Do you have a strnage power saving mode enabled?
> 	kernel: Uhhuh, NMI received for unknown reason 20 on CPU 0
> 
> 4. if I cat /proc/interrupts, I don't see any entry for a wcfxo
module.
> 
> In any case, I did follow the setup instructions on the Digium site
(make
> install in /usr/src/zaptel, edit /etc/zaptel.conf, edit 
> /etc/asterisk/zapata.conf, etc.)
> and we currently have a X100P wcfxo card in another machine running
well
> so we've already had experience getting a card working.
> 
> If anyone has insight into what might be wrong, please do let me know.
> Ultimately, if I trust the Digium support information, then this card
will
> never work, so I'd be grateful to hear about any other PCI card that
provides
> four or so wcfxo interfaces that might work with the PowerEdge.

I don't use Fedora, but it seems those that do have had problems
loading the drivers. Try the modprobe wcfxo then zaptel, then check
your /proc/interrupts. If that doesn't work, try modprobe zaptel only.
I think someone mentioned a readme in the src/zaptel directory for
Fedora as well. Might look.



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