{HEAD ~ The brake assembly} 7, wherein {TAIL ~ said controller unit} means is connected to the other of said first three ports and further connect to the other of said second three ports 
{ HEAD ~ The brake assembly } 7 , wherein { TAIL ~ said controller unit } means is connected to the other of said first three ports and further connect to the other of said second three ports
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH