Knowledge Base
Answers to Your Questions about Radio and Wireless Voice Communications

Icom LMR 2 Pin Wiring Data

01 November 2015

Wildtalk Earpieces with this plug end with the part number -IS

This wiring plan is for Icom Land Based radios, non submersible models only. It does not apply to other Icom radios.

 

2.5mm Pin

Mic Gnd.
Common Ground for Mic.

Mic & PTT
Electret Mics only connected here. When Mic is connected via PTT to Ground the radio transmits. (Mic and PTT are in series).

5V
5Volts via a 470R resistor is available here (on some radios.)

 

3.5mm Pin

Spk+
Speaker Out

Spk Gnd
Speaker Ground (not necessarily commoned with Mic Gnd)

 

Radio Models

Icom LMR (Land Mobile radios). All non-waterproof models.

If you would like to use this data on your own website then please include this link: Information sourced from Wildtalk.com.

Use this data at your own risk. Wildtalk accepts no liability for any accidents or losses caused by use of this data.

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