When, now, the door opening control switch 22 of the controlling device B is closed by, for example, {HEAD ~ a passenger} in the vehicle, {TAIL ~ the relays} R4 and R5 are simultaneously energized causing the normally open contacts R4 2 and R5 1 to close and the normally close contacts R4 1 and 
When , now , the door opening control switch 22 of the controlling device B is closed by , for example , { HEAD ~ a passenger } in the vehicle , { TAIL ~ the relays } R4 and R5 are simultaneously energized causing the normally open contacts R4 2 and R5 1 to close and the normally close contacts R4 1 and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH