When it is {HEAD ~ time} for {TAIL ~ another technician} to install the tap fiber, it is not necessary for the technician to touch any of the input optical fiber 130 that has been installed in the raceway 116 
for
When it is { HEAD ~ time } for { TAIL ~ another technician } to install the tap fiber , it is not necessary for the technician to touch any of the input optical fiber 130 that has been installed in the raceway 116
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH OTH OTH