In standard mode, a single jam broadcast will be sent out,
so to jam other units these must be already switched on.
In Master, the jam will be repeated every couple of seconds
indicated by a green double blink. Slaves powered on later
will sync to the next jam broadcast.
A jammed generator will be indicated with LED fl ashing
green every second. Re-jamming via cable is prevented
until confi rmation, and when slaved to a master, units will
reject also ACN jams form other units than the Master.