Jumper (and Jumper Cable)

Jumper:
1. A wire used to connect equipment and cable on a distributing frame.
2. Single twisted pairs used for cross connecting between 66, 110 or Krone blocks.
3. A patch cable or wire used to establish a circuit, often temporarily, for testing or diagnostics.
4. Jumpers are pairs or sets of small prongs on adapters and motherboards. Jumpers allow the user to instruct the computer to select one of its available operation options. When two pins are covered with a plug, an electrical circuit is completed. When the jumper is uncovered the connection is not made. The computer interprets these electrical connections as configuration information. When errors are found on printed circuit boards, a jumper cable is sometimes soldered in to correct the problem.


Jumper Cable: A short length of conductor or cable used to make a connection between terminals or around a break in a circuit, or around an instrument.