I have the +48V push rectangle on my small Behringer 602A. How do I know if the phantom power is on or off? Is it on when the light is red and button is pushed in? I am starting with a condenser mic with the button out. I engage mic, then push in button. Correct?
Yep, you're correct - the red light means on.
And best practice dictates connecting the mic first, then turning on phantom power.
Mic in, power on (light comes on).
If you are like me and have Ribbon mics and are terrified of frying that $1,200 mic by plugging it into a cable,
you can purchase these:
It shows if there is phantom power coming down the line.
I have one that shows if the phantom power is on the right pin or not (wrongly wired pins can fry ribbons).