[Asterisk-Users] Ouch, part reset, quickly

[Jim Van Meggelen]

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?

Cheers,

Jim.

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