_fBack2 = new ZenoDelay(toplevel, "LowerFeedBack");
_rcvr1 = new ListenSink(toplevel, "UpperRcvr");
_rcvr2 = new ListenSink(toplevel, "LowerRcvr");
_upperTime = new Const(toplevel, "upperTime");
_upperPlotter = new TimedPlotter(toplevel, "upperPlotter");
_lowerTime = new Const(toplevel, "lowerTime");
_lowerPlotter = new TimedPlotter(toplevel, "lowerPlotter");
//_fBack1.delay.setToken(new DoubleToken(4.5));
//_fBack2.delay.setToken(new DoubleToken(4.5));
_fBack1.delay.setToken(new DoubleToken(1.0));