Arrow 5 indicates {HEAD ~ the direction} of {TAIL ~ view} toward the front panel 6, and arrow 7 is in the direction toward the drive panel or rear panel 8 or the drive end 
Arrow 5 indicates { HEAD ~ the direction } of { TAIL ~ view } toward the front panel 6 , and arrow 7 is in the direction toward the drive panel or rear panel 8 or the drive end
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH