Global Communications 4M04 Module Manual

4M04 Headset Interface Module Guide
This guide explains how to configure a 4M04 Headset Interface Module for use in a G-400 series
communication system. After following this guide, you should be able to use a headset with a G-400
series system and configure it appropriately.
Overview Summary
These are the basic steps you will perform when following this guide:
1) Understand the headset module.
2) Insert the module.
3) Attach a headset to the module.
4) Adjust the headset module settings.
5) Learn how to access detailed configuration help.
Headset Module Basics
The 4M04 headset module is designed to connect to an external headset (microphone and
headphones – often connected together as a single headset). Alternatively, a separate microphone
and powered speakers may be used instead of an actual headset. Although the operator must be
located near the G-400 chassis, the headset module can be useful for operators when they need
hands-free communication.
The headset module automatically detects audio from the headset microphone and sends it to
connected modules in the system (there is no "push-to-talk" functionality). Likewise, when other
connected modules provide audio, that audio will be heard in the headset's headphones. It uses
standard 3.5mm jacks for the microphone and headphones – similar to what you would find on a
regular computer.
Installing the Module
1) Insert the 4M04 headset module into a slot on the back of the G-400 series system, preferably
with the system powered off. (You can insert the module while the system is powered on, but
doing so is not recommended because it may disrupt ongoing communication.)
2) After the module is well seated, tighten the thumb-screw on the module to secure the module
and to help reduce RF interference.
3) Power on the G-400 series system and wait for it to indicate "System Running" on the front
panel display.
700-110 4M04
Dec-15
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