I have a 4 car group to a separate dispactor controller, seems to be daisy chain with a ribbon cable from one car to next till terminated at the dispactor cabinet. My dispactor power supply has not AC, 5 at 5.2, 12 at 13 and -12 at 14. Every other day the dispactor freezes up, meaning all hall calls stay latch, position of each car stay stuck when dispactor freezes. Disconnecting the ribbon cable from each car does not return dispactor to normal, only way is a hard reset by cycle power.
