Herein, {HEAD ~ the first circuit} is disposed on the opposite side of {TAIL ~ the second circuit} with respect to the chassis 
Herein , { HEAD ~ the first circuit } is disposed on the opposite side of { TAIL ~ the second circuit } with respect to the chassis
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH