3 v1 1 0 pulse iv=0 pv=2m rise=.1m fall=.1m period=15m width=1m delay=1m
4 v2 2 0 pulse iv=0 pv={-1m} rise=.05m fall=.05m period=15m width=.5m delay=1.25m
10 + hidden(0) v(3) disc(1) disc(2) ord(v*) ord(c1)
12 .alarm tran method(c1)(2,2)
13 .tran 0 40m 40m trace=a