The link apparatus also contains circuits for determining when a node has won arbitration over {HEAD ~ another node} competing for {TAIL ~ time} on the bus 
competing for
The link apparatus also contains circuits for determining when a node has won arbitration over { HEAD ~ another node } competing for { TAIL ~ time } on the bus
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH