{HEAD ~ means} for guiding the DC power, low frequency control signals and {TAIL ~ RF video signals} 
for guiding
{ HEAD ~ means } for guiding the DC power , low frequency control signals and { TAIL ~ RF video signals }
HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL