The input of the first integrator 212 is coupled to {HEAD ~ the input} summing {TAIL ~ junction} 210 and the input of the second integrator 214 is coupled to the output of the first integrator 212 
summing
The input of the first integrator 212 is coupled to { HEAD ~ the input } summing { TAIL ~ junction } 210 and the input of the second integrator 214 is coupled to the output of the first integrator 212
OTH OTH OTH OTH OTH OTH OTH 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