Typically, although not necessarily, {HEAD ~ the fiber channels} 103 are disposed between the alignment pin channels 103, 105 on {TAIL ~ the ferrule end face} 
are disposed on
Typically , although not necessarily , { HEAD ~ the fiber channels } 103 are disposed between the alignment pin channels 103 , 105 on { TAIL ~ the ferrule end face }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL