Item 1: The beauty of a well designed Home Fire Sprinkler System is that the home owner does not have to remember to do anything. In a multipurpose sprinkler system, the toilets get their water service from the sprinkler plumbing. If they shut off the sprinkler, they shut off the toilets...
Refer to the Cable Length Guide below to estimate the maximum allowable cable length that will keep the farthest fixture from the transformer from becoming to dim (below 10.5 volts). In addition, your transformer's output options, the design of your lighting system and corresponding cable layout...