If contention is noted between the system inputs to the pin, and {HEAD ~ outputs} from {TAIL ~ the device} to the pin, contention error notices are provided to the user 
from
If contention is noted between the system inputs to the pin , and { HEAD ~ outputs } from { TAIL ~ the device } to the pin , contention error notices are provided to the user
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH