This programming cable is designed for quick and easy programming of Motorola HT50 handheld transceiver. The internal converter circuit board mounted in the DB9 plug. It requires an external 9VDC battery (not supplied), which should be connected to the DC lead fitted to the DB9 plug. The lead is fitted with 3 crocodile clamps for connection to the radio. The clamps are colour marked as follows – Red (BUS+), Green (BUSY), and Black (GND). This cable does not include any manuals or instructions for use. Therefore, it will be assumed that the purchaser is knowledgeable in using the cable for the applications it is designed for. Please note that we supply the hardware only, we don’t supply the programming software.