Global Communications 4M03 Manual

4M03 Handset Interface Module Guide
This guide explains how to configure a 4M03 Handset Interface Module for use in a G-400 series
communication system. After following this guide, you should be able to use a handset 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 Handset module.
2) Insert the module.
3) Attach a handset to the module.
4) Adjust the handset module settings.
5) Learn how to access detailed configuration help.
Handset Module Basics
The 4M03 handset module is designed to connect to an external handset with a "push to talk" (PTT)
button on it. It is very useful during system setup and in situations where an operator has physical
access to the G-400 series chassis.
The handset (with microphone, speaker, and push-to-talk (PTT) button) attaches to the handset
module with an RJ-12 jack. When the handset module's PTT button is pressed, any audio going into
the handset's microphone will be injected into the G-400 system and sent to any other connected
modules. Likewise, any audio from other modules destined for the handset module will come out the
handset's earpiece.
The G-400 series chassis has a similar RJ-12 handset jack on the front of the unit. If the handset
module is inserted into slot 1 in the G-400 system, this front panel handset jack becomes functional.
This allows you to use the handset jack from either the front panel or the module. This feature is
particularly useful if the G-400 chassis is rack mounted.
Installing the Module
1) Insert the 4M03 handset 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) Helpful Note: Inserting the handset module in slot 1 allows the front panel handset jack to
700-109 4M03
Dec-15
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