Conversely, {TAIL ~ each transformer} 28 also serves to transmit signals from the corresponding tool 12 1 to 12 4 to {HEAD ~ the surface installation} 16 
Conversely , { TAIL ~ each transformer } 28 also serves to transmit signals from the corresponding tool 12 1 to 12 4 to { HEAD ~ the surface installation } 16
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH