Accessory Connector Kit
£3.71 Ex VAT £4.45 Inc VAT
The Motorola Accessory Connector Kit GMBN1021A is a 16-pin accessory connector block (P/N 1580922V01) that plugs into the centre of the 20-pin accessory socket on compatible Motorola mobile radios. It supports external speaker, microphone, PTT/emergency switch, ignition sense and digital I/O signals, enabling full integration of accessories for professional radio installations.
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Programming Included
Hassle-free setup, ready to go.
Connect accessories to Motorola mobile radios. At the core of this kit is a 16-pin accessory connector block (part number 1580922V01). It fits directly into the 20-pin accessory connector (P/N 1586184B01) on the back of compatible radios.
Key Features and Technical Highlights
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Versatile connections: Supports both analogue and digital signal functions.
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Speaker output: Pins 1 (Speaker–) and 16 (Speaker +) provide external speaker output through a bridge amplifier. The load must be at least 3.2 Ω.
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Microphone input: Pin 2 is for an external microphone (DC impedance ≈ 660 Ω; AC ≈ 560 Ω). This input works separately from the front microphone port.
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PTT and emergency input: Pin 3 supports an external push-to-talk or emergency switch.
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Emergency activation: Pin 9 can trigger an emergency function when grounded.
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Ignition sense: Pin 10 connects to the vehicle ignition line so the radio powers on automatically when the engine starts.
This connector kit makes radio installations cleaner, safer, and more efficient. It provides the flexibility needed for mobile, fleet, and base station setups where dependable communication is essential.
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Pin 10: Ignition sense input — connects to vehicle ignition line so the radio powers on automatically when vehicle is started.
Technical Specification
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