The PLC-60/75 part of a BQ cable is a section that contains 6 or 75 pairs of wires twisted together in lengths ranging from 1 to 10 feet. This part of the cable is usually used to connect two or more electronic devices or components. The wires are shielded to help reduce electrical interference and noise, allowing for a more reliable connection. The wires are typically color-coded for convenience, making it easier to identify the proper connections.