[asterisk-users] TDM400 FXO stopped working

Vladimir Mikhelson vlad at mikhelson.com
Sat Sep 24 12:44:40 CDT 2011


Remco,

In my experience something could have gone wrong with the parameters you pass to WCTDM driver.

You may want to check your /etc/modprobe.d/dahdi.conf

Try loading the driver manually as follows:

1. Stop Asterisk
2. modprobe -r wctdm
3. modprobe wctdm
4. dahdi_cfg -vvv

Good luck,
Vladimir



On 9/23/2011 4:27 AM, Remco Barendse wrote:
> Hi list
>
> I have 2 servers with a TDM400 card, port 1 populated by an FXO (red)
> module), port 4 populated with an FXS module. I am using dahdi linux
> and tools 2.5.0.1. The servers are running CentOS 4 and the other box
> CentOS 6.
>
> Both modules have been working fine but recently stopped working, when
> i start dahdi with just FXS enabled everything is fine.
>
> This is the error i get :
> Loading DAHDI hardware modules:
>   wctdm:                                                   [  OK  ]
>
> Running dahdi_cfg:  DAHDI_CHANCONFIG failed on channel 1: Invalid
> argument (22)
> Selected signaling not supported
> Possible causes:
>         FXO signaling is being used on a FXO interface (use a FXS
> signaling variant)
>         RBS signaling is being used on a E1 CCS span
>         Signaling is being assigned to channel 16 of an E1 CAS span
>                                                            [FAILED]
>
>
> This is in my system.conf :
> fxoks=1
> echocanceller=mg2,1
> # channel 2, WCTDM/4/1, no module.
> # channel 3, WCTDM/4/2, no module.
> fxsks=4
> echocanceller=mg2,4
>
> # Global data
>
> loadzone        = nl
> defaultzone     = nl
>
>
> When i run dahdi_genconf it doesn't detect the module either :
> # Autogenerated by /usr/sbin/dahdi_genconf on Fri Sep 23 11:24:16 2011
> # Span 1: WCTDM/4 "Wildcard TDM400P REV E/F Board 5" (MASTER)
> # channel 1, WCTDM/4/0, no module.
> # channel 2, WCTDM/4/1, no module.
> # channel 3, WCTDM/4/2, no module.
> fxsks=4
> echocanceller=mg2,4
>
>
> I already replaced both FXO modules with new ones but without result.
>
> Ideas anyone?
>
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