The closet has become the communication closet (much to my wifes
annoyance) and contains or provides power for via PoE the following

server,
printer,
scanner,
amplifier,
tuner,
2 x 5 volt VOIP adapters,
2 x 12volt wifi routers,
3 x 9volt cordless phones,
4 x 12volt usb drives,
1 x 9-25 volt pic-maxi-web,
1 x 24 volt ac water solenoid PSU.
1 x 5 volt IP camera

A total of 14 wall wart style PSU's many of which terminate on DDF
krone strips so I can easily do my own version of PoE.  This keeps the
end units tidy as there is no ugly PSU to be seen.

Under test the so called/labeled 9 volt psu's for the cordless phones
still provide 11.45volts at the base unit when loaded and drop down to
10.45Volts when charging the remote unit. Unloaded they measure
12.3volts. So I suspect they will tolerate a 12 volt regulated supply.

So I am entertaining the idea of using 1 ex PC PSU that provides 12v
8Amp and 5v 20amp.

Therefore all the 9Volt and 12 volt devices will be supplied by the
12volt rail and the 5 volt devices from the 5 volt rail.

This would reduce the PSU count to 2.  That is 1xPC PSU and 1x24v AC
which should provide increased PSU efficiency, save space and reduce
heat.  Additionally I have a bunch of 5 volt and 12 volt rechargeable
devices that I would provide leads for in the closet.  Therefore
mobile phones, lanterns etc can be charged in the closet with no
additional PSU's.

So this all sounds good in theory but I suspect there are some
gotchas.  The obvious one is the PC PSU may be capable of destroying
all the end devices in one go in the event of a fault.  However, my
experience at work is that PSU's tend to destroy themselves and the PC
hardware often remains serviceable.

Anyone rationalised PSU's in this way or any other experience or comments.

Cheers Justin
--=20
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