So when it passes intermediate floor zone magnets hs and hsx drop and SD and sdx pick and drop out at both intermediate floors in down direction but in up direction. If I have a call for 1c which is 3rd fl. It would only go by upc which is 2nd fl. And then drop out hs hsx and pick SD sdx and go into SD and right back into HS once it passes the 1c which is 3 fl. Call and run to top fl. SD and level and open doors and run back down without cancel call there is about 120 cube relays on board lol!