I have my GC upstairs in my house but I need to have 3-4 keypads downstairs. Instead of taking up more space in the conduit running from attic to crawlspace by running 4 Cat5s, is there a way to just run a single cat5? Seems like since the keypads have an address that it may be possible to install a hub in the crawlspace and then attach the keypads there. Any chance of this?