text: Q:
  
  New house, found 4 terminals with one twisted pair connected to each?
  
  In my new house I've found a set of four terminals with one ethernet cable connected to all of them.  The cable is split so that there is only one twisted pair connected to each terminal.  What on earth is this for?
  Thank you
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  Edit:
  
  Link to larger image
  
  A:
  
  They're attached to the blue pair, which is the center pins. So that would be "phone" (or DSL), but why it's RJ45 (4 pair) instead of RJ11/12 (single pair) is unknown.  My only advice would be to trace out where they go / what's attached (assuming there is anything still there.)
  (Note: I've seen some truly odd setups around PBX's. But there's no reason to have a PBX in most houses.)
  
  