[EMAIL PROTECTED] wrote: > On Sat, 2005-01-01 at 16:14 -0700, Michael Welter wrote: > >> Since you asked, and since I'm well into this bottle of Merlot on >> New Year's day: >> >> 1. Power alarms. WTF does that mean? Wish I had some support docs. >> >> 2. On bootup, "Excessive leakage module x, ProSLIC failed Auto >> Configuration". Again, WTF? Reboot and it's ok. But, just a reboot >> after driving 100+ miles to the client site is not a good option. >> >> 3. On bootup, a LED won't light. When zapata gets to it, it can't >> find the channel. Usually means a complete power cycle to get it to >> work. > > Those first 3 all sound like you have a problem with power > supply and consistency. You don't mention what modules you > have in the cards, but I bet you have FXS ports and have too > light of a power supply for the job.
Oddly, the maximum power requirements of the TDM400 (fully loaded with 4 FXS modules) is 20W. That'd have to be a pretty weak power supply (or heavily loaded chassis) to have problems drawing that power. Still, I agree that the power supply is a suspect. I'd want to know who makes the power supply, which model it is, and whether that model has a good reputation. An electrically noisy power supply could cause the kinds of anomalies described. So could a faulty supply, of course. More important to my mind is the overall quality of the power feeding the system. Is a dedicated electrical circuit employed? Isolated, insulated grounding conductor right back to a separately-derived source? Power conditioner? So many of the problems people are having with the TDM cards sound like power-quality issues, one has to wonder. I don't mean that as a panacea, because the TDM400 troubles seem to go beyond any one issue. It's merely one thing that might bear looking into. It'd be nice to see some statistics on not only what percentage of TDM400 users are having problems, but also what kind of environment they're in. I'd want to know about the elctrical environment, manufacturer and model of each system component (power supply and motherboard especially). I'd also like to get a report from a circuit analysis performed on the PSTN loop. I realize that much of this would be impossible to get, but one of the most important steps towards solving a bug is being able to identify the conditions which cause it. So far that data is not known, which is a large part of the reason the problem is not getting fixed - no one knows exactly what is causing the troubles - we just have symptoms. What if, for example, the TDM400 issues were a cumulative thing? If you had over 6dB of attenuation on the PSTN loop, coupled with greater than 5V potential on the neutral-ground of your elecrical receptacle, compounded by a cheap power supply, exascerbated by a Via-chipset, would you not be virtually guaranteed some strange behaviour? But if your PSTN was -3dB, your electrical feed derived from a power conditioner, your power supply manufactured by PC Power & Cooling, and a ServerWorks chipset-based MoBo, would your system always be faultless? With enough data, we could really start to hone in on this animal. >> 4. A TDM card that isn't recognized at all. DOA. >> >> 5. Impedience matching to eliminate hummmmmmmmmm? >> >> I'm calling Matt on Monday, and hopefully he'll RMA these cards. >> >> I hope that everyone that has a life is out enjoying the New Year. > > http://lists.digium.com/mailman/listinfo/asterisk-users -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.296 / Virus Database: 265.6.7 - Release Date: 30/12/2004 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.296 / Virus Database: 265.6.7 - Release Date: 30/12/2004 _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
