Yes. -48VDC means the negative side is hot, and the positive side is
ground (or return).
You can mix +48VDC and -48VDC if you know what you're doing. It helps a
bunch if the equipment floats logic ground. You need to check to see if
your equipment isolates logic from the supply voltage.
Yes. Batteries can be grounded either way. They don't care.
bp
<part15sbs{at}gmail{dot}com>
On 1/8/2024 8:25 AM, Mark - Myakka Technologies wrote:
I know we have been though this many times and I thought I understood it.
-48VDC is the Negative side being HOT, correct?
It is BAD to try to mix -48VDC and 48VDC
There is no such thing as a -48V battery. A battery is a battery, correct?
How about the ICT Platinum power supplies. They show as 48VDC, can they be
used on -48VDC equipment?
I remember Check saying something about a way to test to see if a piece of
equipment that is Neg 48VDC is truly grounded as Neg 48VDC.
--
Thanks,
Mark mailto:m...@mailmt.com
Myakka Communications
www.Myakka.com
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