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I have heard the term “idc” applied to internal SCSI ribbon cables. What does it mean?

April 26, 2017applied cables heard idc Internal mean Ribbon SCSI term

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I have heard the term “idc” applied to internal SCSI ribbon cables. What does it mean?

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• Answer: The term “idc” stands for insulation displacement connector and it refers to the manner in which the connector is placed on the ribbon cable. The connector and ribbon cable are placed in a press and squeezed together. The pins on the connector are designed to penetrate (displace) the insulation and make contact with the wire conductor. This connector has two rows of 25 pins on 0.1 inch centers, but that is too long, so the term “idc” is frequently used. It is not required that this connector be an idc type. The term idc is really a misnomer when applied to the male SCSI connector on the board.