Jeremy Don't bother looking for a PSU with a lower current rating, The IAXy like any electrical device is designed to run at a particular voltage and consumes a certain amount of power (W) at that voltage.
In simple terms this means that if the voltage is constant and the design parameters of the device don't change, the device will only draw the amount of current it needs to operate and no more. So a device that draws 500mA at 9V to operate, will only draw 500mA regardless of whether the PSU is capable of supplying 500mA (0.5A) or 5000mA (5A). This is why the electrical supply to your house may be capable of hundreds of amps (A) but your living room light with a 60W bulb only draws the 0.25A it needs to operate. Obviously an underrated PSU will not be able to provide enough current at the rated voltage and so the voltage will drop and the PSU will overheat, resulting in failure of the PSU and possibly the device connected to it, depending on the protection devices in the PSU. An overrated PSU (current wise) will just run cooler and be more capable of delivering the current the attached device needs. This is also why it is vital to have a fully regulated or switched PSU because there is no regulation circuit in the IAXy itself and if the voltage to the IAXy circuit changes so do its power and current requirements, making it unstable. OHM's LAW is a wonderful thing :) Cheers! Roy... > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:asterisk-users- > [EMAIL PROTECTED] On Behalf Of Jeremy Bogan > Sent: 28 August 2004 22:07 > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [Asterisk-Users] IAXy Power in Australia? > > > Have you tried feeding it less amps at all? > > Not yet, but i'll see if I can find a power supply with less amps. > > -- > jeremy bogan [ [EMAIL PROTECTED] ] > segment publishing - design.develop.host > > _______________________________________________ > 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 _______________________________________________ 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
