Disabling {HEAD ~ the output circuit} following such a delay severs {TAIL ~ the potential current path} between the supply voltage of the integrated circuit and an external voltage source coupled to the signal line via a pull up device 
Disabling { HEAD ~ the output circuit } following such a delay severs { TAIL ~ the potential current path } between the supply voltage of the integrated circuit and an external voltage source coupled to the signal line via a pull up device
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL 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