Pin 1 on a ribbon cable is usually colored differently than the other pins. It is often red.
What is the pin number for the ribbon cable?
used on a floppy
The red stripe on the ribbon cable indicates pin #1. Usually, pin #1 on the device is the one closest to the power connector.
The red edge of a 40-pin ribbon cable is connected to pin one on the IDE hard drive. If you fail to do so correctly, it may result in the hard drive being completely unable to communicate with your system.
A 34-pin ribbon cable.
3 types of ribbon cables found in a PC are, a 34-pin floppy drive cable with twist, a 40-pin IDE cable with 40 wires, and a 40-pin IDE cable with 80 fine wires(80 conductor cable)A floppy drive cable, an IDE cable, and a CD or DVD drive cable
A 34-pin ribbon cable will connect a floppy drive.A 40 (or 80) conductor ribbon cable is for (E)IDE devices.Other ribbon cables may be used (80 conductor for SCSI, and in older systems, MFM and RLL Hard drives).A smaller ribbon cable (10 conductors) may be used for USB Headers.I think that covers most of them.
By the colored stripe on the cable it refers to the first pin.
Hard Drives connect to the motherboard one of two ways. Either using a 40-wire/40-pin HDD ribbon cable, or an 80-wire/40-pin HDD ribbon cable. HDD stands for Hard Drive Disk.
The red stripe marks pin one, which ensures the ribbon cable is pushed into the socket the correct way round.
Pin 1 on the IDE controller should be located at the end of the connector where there is typically a colored or marked edge on the cable. This pin corresponds to the first wire in the ribbon cable, which is usually red. When connecting the IDE cable to the device, ensure that Pin 1 on the device aligns with Pin 1 on the cable and the controller for proper operation. Incorrect alignment can prevent the device from being recognized or functioning correctly.
it is usually white and is a lot larger than the standered vga cable