Search the archives for some more information. I think this has been covered before and Digium had a replacement offer going for a while.
If your complaint is a hissing or humming noise it has already been discovered that the TDM400 card has not been properly isolated from the PC power supply electrically. You may notice (as I do with one of my PCs) that the background noise in one ear cycles in the same cadence of the fan in the PC power supply. Switching PCs (a luxury I had and you may not) did make a difference with a different MOBO and power supply.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 21, 2003 03:18
To: [EMAIL PROTECTED]
Subject: [Asterisk-Users] Background Noise
Has anyone had any issues with background noise while using a TDM400 card?
If so, what things did you tweak to resolve the issue? My * server has a
single TDM400 card (2 ports enabled) with two X100P cards.
Any feedback would be greatly appreciated.
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