Ryan Courtnage wrote:
On Fri, 2004-10-12 at 10:29 -0500, Andrei (MPI) wrote:
Eric Wieling aka ManxPower wrote:
Andrei (MPI) wrote:
I have same problem with TDM400P FXO. Had to reload wctdm 3 times in a row tonight, in order to get rid of this annoying problem.
We too have struggled with this. We don't have the problem anymore, but can't say for sure what fixed it. Some more things to try:
- Yet another server. If possible, try a PC with 100% Intel components. We've standardized on Intel, and very rarely experience the problem anymore.
- Ensure you are using filtered power (UPS or good powerbar ... make sure the cleaning lady doesn't plug her vacuum cleaner into it!)
- IRQ masking with your HDD: hdparm -u1 /dev/<drive>
- Someone once suggested:
---snip---
We have not experience with Digium cards. However we had similar problems when installing legacy pbx. The problem: local ground. One easy way to test the local ground is with a voltmeter measure the voltage between the CO tip wire (in open loop state) and local ground. This must be less than 2 VDC and must be stable (not oscillations). Correcting the local ground all problems were fixed.
---snip---
- Perhaps it's environmental? Sounds stupid, but try running your server in a different room, or on a different rack. I guessing these cards are very sensitive to interference/noise.
I'd be very interested to know if you resolve the problem.
Ryan
Ryan,
I very much appreciate your comment. We'll try some more tricks.. hdparm is on our list now.
Thanks! Andrei
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