ALPHA 3 PIN BRAKE CABLE VOLTAGES A&B =POWER 90 V DC …………. C =GROUND ALPHA 3 PIN BRAKE OHM VALUE OHM VALUE BETWEEN A & B SHOULD BE APPROX 230 OHMS ON AN ALPHA 12 TO ALPHA 40 MOTOR. WHAT YOU DON’T WANT IS FOR THE OHMS TO SHOW A SHORT OR AN OPEN BETWEEN PINS A AND B BRAKE COIL ON AN 0371 THROUGH 0377 SHOULD READ APPROX 500 OHMS ON PINS 5 AND 6