a third memory for storing {TAIL ~ the control information} from the remote control system for controlling {HEAD ~ the multiplexers selection} 
a third memory for storing { TAIL ~ the control information } from the remote control system for controlling { HEAD ~ the multiplexers selection }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD