Ruth's sister Internal Power Cable for GP340 GP328 GP1280

Compatible Radio Models

This internal power cable is designed for Motorola GP340 GP328 GP1280 two-way radios. It provides the electrical link between the radio chassis and the headset or accessory module. Installers and radio technicians use it when building or repairing covert acoustic-tube headset kits. The part matches the pin-out and voltage requirements of the listed models.

Sustained Load Behaviour

Under continuous transmit cycles the cable maintains stable current delivery without voltage sag that would distort the push-to-talk microphone signal. The insulation resists heat build-up inside the radio housing during long shifts. Connectors stay seated despite vibration from vehicle mounts or body-worn use. The assembly is not rated for high-voltage applications beyond the radio’s native supply rail.