Patrick Fortin
2005-Aug-18 12:20 UTC
[Asterisk-Users] static noise with this hardware any advice
Hi We have static noise problem on our asterisk server. latest stable release. The card is a new TDM04B We have it installed on the following hardware Motherboard Intel SE7520BD2SCSI 2x POWER SUPPLY 730W INTEL I will not mention the other hardware because we have desactivated/changed all the other items The only 2 items that we have not changed is the mobo and the power supply. At first it was on scsi drives but we re-installed using a IDE drive We deactivated the two onboard nic and tried two different brand. We have deactivated hyper-treading We have deactivated USB We have deactivated SATA We have tried a noise-cancelling power-bar We have tried two different phones lines We have tried several IP phones, Cisco, Snom, Gnet (There is no noise for a call between two phones) The phone is connected directly in the nic card so there is no network problem possible. We have tried several TDM Card Anybody knows if the motherboard or the power-supply could be the problem ?
Jonathan k. Creasy
2005-Aug-18 12:33 UTC
[Asterisk-Users] static noise with this hardware any advice
The power supply could definitely be the problem. You tried a difference TDM04B right? -Jonathan -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Patrick Fortin Sent: Thursday, August 18, 2005 3:21 PM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] static noise with this hardware any advice Hi We have static noise problem on our asterisk server. latest stable release. The card is a new TDM04B We have it installed on the following hardware Motherboard Intel SE7520BD2SCSI 2x POWER SUPPLY 730W INTEL I will not mention the other hardware because we have desactivated/changed all the other items The only 2 items that we have not changed is the mobo and the power supply. At first it was on scsi drives but we re-installed using a IDE drive We deactivated the two onboard nic and tried two different brand. We have deactivated hyper-treading We have deactivated USB We have deactivated SATA We have tried a noise-cancelling power-bar We have tried two different phones lines We have tried several IP phones, Cisco, Snom, Gnet (There is no noise for a call between two phones) The phone is connected directly in the nic card so there is no network problem possible. We have tried several TDM Card Anybody knows if the motherboard or the power-supply could be the problem ? _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Geoff Manning
2005-Aug-18 12:34 UTC
[Asterisk-Users] static noise with this hardware any advice
Patrick Fortin wrote:> > At first it was on scsi drives but we re-installed using a IDE drive > We deactivated the two onboard nic and tried two different brand. > We have deactivated hyper-treading > We have deactivated USB > We have deactivated SATA > We have tried a noise-cancelling power-bar > We have tried two different phones lines > We have tried several IP phones, Cisco, Snom, Gnet > (There is no noise for a call between two phones) > The phone is connected directly in the nic card so there is no network > problem possible. > We have tried several TDM Card > > Anybody knows if the motherboard or the power-supply could be the > problem ? >I am going through a similar procedure. I contacted Digium support but they say my hw is not supported (Dell SC420). They are right, but I have another installation of this in another location without the line noise. AND, I put the TE110P card in another supported motherboard and have the same noise. What are your results with zttest?? Is it above 98.5% How about IRQ sharing (# lspci -vb ) or (# lspci -v)? What kernel are you running? I am running 2.6.11 and I am passing this as kernel parameters at boot: kernel /boot/vmlinuz-2.6.11.11 root=/dev/md0 ro acpi=off noapic The "acpi=off" and "noapic" is what helped get my zttest score to a near 100%. Hope something here helps, either way I'll be watching this thread to perhaps solve my own problem.
Soner Tari
2005-Aug-18 14:38 UTC
[Asterisk-Users] static noise with this hardware any advice
Since you say TDM04B, I guess you are talking about noise on FXO ports. So, my guess is that your opermode setting for zaptel driver is wrong? This may be true especially if the noise can be avoided or considerably reduced by playing with rx/txgain. At least that was the experience I had with my FXO modules. Hope this helps. ----- Original Message ----- From: "Patrick Fortin" <gestion@royaume.com> To: <asterisk-users@lists.digium.com> Sent: Thursday, August 18, 2005 10:20 PM Subject: [Asterisk-Users] static noise with this hardware any advice> Hi > > We have static noise problem on our asterisk server. latest stable > release. > The card is a new TDM04B > > We have it installed on the following hardware > > Motherboard Intel SE7520BD2SCSI > 2x POWER SUPPLY 730W INTEL > > I will not mention the other hardware because we have desactivated/changed > all the other items > The only 2 items that we have not changed is the mobo and the power > supply. > > At first it was on scsi drives but we re-installed using a IDE drive > We deactivated the two onboard nic and tried two different brand. > We have deactivated hyper-treading > We have deactivated USB > We have deactivated SATA > We have tried a noise-cancelling power-bar > We have tried two different phones lines > We have tried several IP phones, Cisco, Snom, Gnet > (There is no noise for a call between two phones) > The phone is connected directly in the nic card so there is no network > problem possible. > We have tried several TDM Card > > Anybody knows if the motherboard or the power-supply could be the problem > ? > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users
Patrick Fortin
2005-Aug-19 12:21 UTC
[Asterisk-Users] static noise with this hardware any advice
Follow-up on this We have tried several things without success. Digium responded that the problem was NMI (non-maskable interrupts) and told me to boot linux with the nmi_watchdog=0 option It did not solve the problem. Finally I replaced the TDM card with an older one (revision F) 2FXO 2FXS And the static noise is gone !! Anobody have an idea why this happened Of course it doesn't solve my problem because we have one old card and several new card but it may give digium an idea of where is my problem Patrick Hi We have static noise problem on our asterisk server. latest stable release. The card is a new TDM04B We have it installed on the following hardware Motherboard Intel SE7520BD2SCSI 2x POWER SUPPLY 730W INTEL I will not mention the other hardware because we have desactivated/changed all the other items The only 2 items that we have not changed is the mobo and the power supply. At first it was on scsi drives but we re-installed using a IDE drive We deactivated the two onboard nic and tried two different brand. We have deactivated hyper-treading We have deactivated USB We have deactivated SATA We have tried a noise-cancelling power-bar We have tried two different phones lines We have tried several IP phones, Cisco, Snom, Gnet (There is no noise for a call between two phones) The phone is connected directly in the nic card so there is no network problem possible. We have tried several TDM Card Anybody knows if the motherboard or the power-supply could be the problem ?