distributing the digital differential signal at a second rate, wherein {HEAD ~ the second rate} is lower than {TAIL ~ the first rate} 
distributing the digital differential signal at a second rate , wherein { HEAD ~ the second rate } is lower than { TAIL ~ the first rate }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL