[rescue] 48 VDC v -48 VDC...jeez!

[Leslie Connally]

jeez! whatever I saved on these DC boxes i;ve lost learning.. no- trying to
learn.. about all this.

Can anyone simply explain why egSun uses -48vdc and if anyone else uses +48vdc?

Can I assume NOT everyone in telecom uses -48vdc?
Is most telecom -48vdc ?

Is a Power Supply either, or both ?!

if
-48VDC equip:

which is f((*&g "supply" and which is "return" ???

PS
+            -


Equip
+           -


>Netra t1 100 DC
>o -48VDC/-60VDC Supply (pin 1) (12 AWG)
>o Ground connection to power supply (pin 2) (12 AWG)
>o -48VDC/-60VDC Return (pin 3) (12 AWG)


signed
Dizzy in Dallas