I have just found this thread and need some help please. I have a jandy rs serial adapter connected to my main system outside which twice now has has an electrical surge which took it out and my crestron pro 2. I have ordered a crestron surge protector that will go between the jandy 7620 and the pro2. But i am also wanting to try and figure how to protect the 7620 from these spikes. I have seen the threads but dont know enough about this to know the best solution and how to hook it up. would you please share with me whats best and where to put it? many thanks john

am glad to do this offline if easier.