A plurality of lane boxes are provided for {HEAD ~ backup} of a touch signal and {TAIL ~ a starting block signal}, in case of failure and misoperation of the control device 
A plurality of lane boxes are provided for { HEAD ~ backup } of a touch signal and { TAIL ~ a starting block signal } , in case of failure and misoperation of the control device
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH