[Asterisk-Users] Ouch, part reset, quickly

[Jim Van Meggelen]

asterisk-users-bounces at lists.digium.com wrote:
> asterisk-users-bounces at lists.digium.com wrote:
>>> -----Original Message-----
>>> From: asterisk-users-bounces at lists.digium.com
>>> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Steven
>>> Critchfield Sent: Saturday, 4 December 2004 1:44 AM
>>> To: Ed Greenberg; Asterisk Users Mailing List - Non-Commercial
>>> Discussion Subject: Re: [Asterisk-Users] Ouch, part reset, quickly
>>> 
>>> 
>>> On Fri, 2004-12-03 at 09:09 -0800, Ed Greenberg wrote:
>>>> I have exactly this problem. When it happens, I lose access to some
>>>> FXS ports and get Geiger counter style clicking on the FXOs. I just
>>>> opened a ticket with Digium on the subject, but given what I just
>>>> read, perhaps I should not have high hopes.
>>> 
>>> Is it possible that your PSU isn't up to the task? If you aren't
>>> running a 400 or 500 watt PSU, I would be suspect of the PSU. That
>>> error message was attributed to not getting enough power before they
>>> put a power plug on the board itself. Now you know you aren't
>>> getting strangled by the PCI bus, but it still might not be enough
>>> power if you PSU isn't up to snuff to hold the power stable and
>>> high enough. -- Steven Critchfield <critch at basesys.com>
>>> 
>> 
>> Interestingly enough, the data sheet does not give any info. on what
>> are power requirements for this board. Does anyone have this data?
>> 
>> Regards
>> Garry Taylor
> 
> I requested this information from Digium and was provided with the
> following: 
> 
> Max Power Draw per TDM400 (Watts):      20
> 2 Watts per FXO
> 5 Watts per FXS
> 
> They also told me each FXS port would support a REN (ringer
> equivalence number) of 5.0, which means that you should be able to to
> ring five of the old electromechanical telephones
> simultaneously off of each FXS port on the card - 20 of them in all.
> 
> Does anybody know what the wattage is for a REN?

Here's some technical information about REN. Not sure how useful it is
to the discussion, or whether it answers my question.

http://www.powerdsine.com/Support/FAQ/#ringers_faq



-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.296 / Virus Database: 265.6.2 - Release Date: 20/12/2004