The control system 34 is coupled to {TAIL ~ a pacing}, or {HEAD ~ stimulation}, channel 24 and a sensing channel 26 
The control system 34 is coupled to { TAIL ~ a pacing } , or { HEAD ~ stimulation } , channel 24 and a sensing channel 26
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH