One big problum would be trying to keep the timers down the line from triggering. The pulses would have to be encoded some how? and then decoded by each timer.
I just had another idea. What if I use a change in DC voltage to trigger a timer? Maybe using diodes to encode and decode so to speek the signal. Like thay used to do on model trains for the horn signal. The change in votage would just need to be isolated (maybe with diodes) by each timer and then sent down the line after a timing cycel to the next timer.
Any Ideas guys?
Andy