a hydraulic connection leading from {HEAD ~ said brake circuit} to low pressure and {TAIL ~ high pressure accumulator systems}; and 
a hydraulic connection leading from { HEAD ~ said brake circuit } to low pressure and { TAIL ~ high pressure accumulator systems } ; and
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH