{HEAD ~ Timing server} 500 has {TAIL ~ a processor} 510 coupled to a memory 580 and to the data bus interface 560 by internal data bus 570 
has
{ HEAD ~ Timing server } 500 has { TAIL ~ a processor } 510 coupled to a memory 580 and to the data bus interface 560 by internal data bus 570
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH