FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The red stripe on ribbon cables is used to indicate that this is pin 1 of the cable. When using this type of cable, it is important that pin 1 is plugged into pin 1 one the device, and pin 1 on the motherboard or other device.

Detailed explanation-2: -The red stripe located on one edge of the gray ribbon cable serves as an identification stripe during the installation process. It is used to prevent reversed connections, which could be damaging to electronics. Generally, the red conductor is paired with pin 1 on a connector.

Detailed explanation-3: -Tech Tip: Pin 1 is the cable edge that is colored. Pin 1 on a ribbon cable is easily identified by the colored stripe that runs down the edge of the cable. Just as every cable has a pin 1, all connectors on devices, adapters, or motherboards have a pin 1. Pin 1 on a cable inserts into pin 1 on a connector.

Detailed explanation-4: -Look for a label on the board around the connector. It may be called Pin 1, or it may simply show a 1 and 2. Other possibilities include 39 and 40, or 33 and 34, which would mean you would find Pin 1 at the other end.

Detailed explanation-5: -On the upper end of the connector above, we can see a arrow (or “V” or triangle). This is the pin 1 indicator. The ribbon cable is oriented so that its pin 1 lines up with the arrow.