[time-nuts] UPS for my time rack
Hal Murray
hmurray at megapathdsl.net
Thu Oct 15 06:22:05 UTC 2015
gigneil at gmail.com said:
> Those traco power units are fantastic. Absolutely great.
I first encountered power "bricks" 10 or 15 years ago. They come in various
sizes. Full brick, half-brick, and quarter-brick were common when I was
watching, with the usual blizzard of output voltages. They are made by many
vendors. There is lots of competition on two fronts: efficiency and
watts/package.
I think the original ones were targeted at phone company applications since
they ran off 48 V. (That may have just been the ones I was paying attention
to.) Other input voltages are also common. The input voltage typically has
a 2:1 range.
The pinouts are reasonably standard. I don't know if there is an official
spec or everybody else copies the first company to get something good on the
market.
--
These are my opinions. I hate spam.
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