Old 09-11-2014, 07:52 AM
  #7  
abbor
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Join Date: Feb 2005
Location: Norway
Posts: 14,172
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The bottom of the T can be open, the side should always be connected to something (a cable, another T or a terminator. Each end of what's called the backbone (The sides of the T's with connected cables) should always be terminated with a terminator plug.
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