[time-nuts] Where does 28V come from?

[Hal Murray]

> 	That said, the modules also appear to be powered by 28VDC, add some
> regulation, you could use the chassis to power the Thunderbolt, and
> mount it in one of the blank panels. 

Lead acid batteries are close to 2V per cell.  For cars/trucks, they come 
conviently packaged in 6V and 12V units.  The phone company works off 48V.

But where does 28V come from?

The Isotemp OSCO 127-10 data sheet says 27 V, but that's +3, -6 or 21-30V 
which straddles both 24V and 28V.
 

-- 
These are my opinions, not necessarily my employer's.  I hate spam.