The J-Link-ARM-14 pin adapter with ribbon cable adapts a 20-pin (2x10) ARM JTAG connector to a 14-pin (2x7) connector, to permit the use of ARM debuggers such as J-Link ARM on those targets which require the alternative, 14-pin JTAG connector.
The adapter features a female 20-pin (2x10) connector and a 14-pin (2x7) male connector on a small board. The included 2x7 ribbon cable has a female connector at each end and attaches to the adapter's 14-pin male connector on one side and plugs onto the 14-pin JTAG connector on your ARM target board on the other.
The board's 20-pin female connector is designed to plug directly into the matching male connector of your ARM JTAG unit (in place of the normally used 20-pin cable).
Note: This item is not a programmer/debugger itself. It is merely an adapter for owners of an existing programmer/debugger.