Crossbar can refer to:

Structural usage:

• A structural member that crosses any two other elements
• A primitive latch consisting of a post barring a door
• The top tube of a bicycle frame
• The horizontal member of many sports goals including those for hockey, soccer, rugby and American football
• A horizontal member of an electricity pylon, that carries the conductors

Networking and electronics usages:

• A crossbar switch
  • Specifically, a 1XB or 5XB telephone switch, also known as Crossbar #1 or Crossbar #5
• A circuit composed of crossbar latches

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