I have found that sometimes, I said sometimes, the CAP module works with reversed polarity but then acts weird, too. Like loosing the programming.

Connect the Positive to the Black and White.
Connect the Negative to the Yellow and Blue.

According to the Nortel manual it says to wire all 6 wires (2-phone, 4-voltage) whether 1 or 2 modules are used.
But that could also be so that if only 1 is used and later they add #2, wiring is already in place.


If CON is the opposite of PRO
Then what is the opposite of Progress?