ASTi Telestra Service Manual download pdf (Page 94)

ASTi Telestra 4 Training Manual (Ver. 1, Rev. F)

9.6. Intercoms

This section demonstrates the use of Intercoms by creating a model with two operators operating

on four busses using a PTT switch with the CommPanel component. The basic concept of the

CommPanel is the connection of an operator input (usually microphone, often via a Vox compo-

nent) through a PTT gate and gain stage with an optional control input and scaling factor via a

control selector switch to an intercom channel (bi-directional) provided by the Intercom Service.

The intercom channel may be connected to various other component types to provide connectivity

to other audio components, or may simply be used as a basic intercom to provide standard inter-

com voice communications.

A simple example using the intercom bus includes two operators each with a 4-channel PTT

switch. When both operators are on the same channel (intercom bus) they can communicate and

listen to the same audio. Each operator needs their own CommPanel component.

Select Channels 1-4

Operator 1 Operator 2

Channel 1

Channel 2

Channel 3

Channel 4

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ASTi Telestra Service Manual Page 94