[Asterisk-Users] ISPCON Mini-emergency: ATA186 Power Cube OK onSPA841?

trixter http://www.0xdecafbad.com trixter at 0xdecafbad.com
Mon May 23 16:53:12 MST 2005


On Tue, 2005-05-24 at 09:41 +1000, Terry H. Gilsenan wrote:
> Hi,
> 
> I have used the Cisco ata186 powersupply in the SPA1000 and it worked fine
> (ditto for the reverse)
> 
> Regards,
> T 

The biggest thing to watch is that the amperage is at least as high.
The device wont draw more than it needs (not true of voltage but is true
of amperage) but if you try to draw more than the transformer outputs it
will get really hot and eventually the transformer will die. 

Polarity is aparently the same (most use center positive to prevent
accidental shorting), but should be marked    
  - ----C ---- + 
something like that so you can tell if its the same.  

In a conference hall odds are power is unclean (especially with long
extension cords where you get more hramonic distortion and such) and RMS
is lower than stated, but it shouldnt be too big of a problem for that..


-- 
Trixter http://www.0xdecafbad.com
UK +44 870 340 4605   Germany +49 801 777 555 3402
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