The Motorola RKN4155 Computer Programming Software (CPS) Cable - The RDX and CP110 series radios have the capability to be programmed by using the CPS cable.
CPS allows you to program features like frequencies, PL/DPL codes, bandwidth, time-out timer, power select, battery type select, scan list, call tones, scramble, etc. Your CPS cable will help you read and modify these kinds of features in your radio.
Note:
Before using the CPS, make sure you disconnect the power supply from the drop-in tray charger.