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When connecting a ribbon cable to a connector, how do you know which direction to plug it in?

  • A.The red line in the cable goes to the highest pin number
  • B.The colored line in the cable goes to pin #1
  • C.It does not matter
  • D.The blue or red line in the cable goes away from the power connector

Answer: B

Correct answer: The colored line in the cable goes to pin #1

The stripe along one edge of a ribbon cable marks the conductor carrying pin 1, and pin 1 on the board is marked with a square pad, a dot or a number. Aligning the two is the whole of the rule.

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