Reactor Server

rednet.open( "back" )
local state = false
rs.setOutput( "top", state )

while true do
	id, msg, dis = rednet.receive()
	if msg == "on" then state = true
	elseif msg == "off" then state = false end

	rs.setOutput( "top", state )
	rednet.send( id, "Reactor Success" )
end