Section I - General Information; Introduction; Limitations; Scope - PS Engineering PAC45A Installation And Operation Instructions Manual

Section I – GENERAL INFORMATION
1.1

INTRODUCTION

The PAC45A represents a revolutionary step in cockpit audio control and intercommunications utility.
MultiTalker™, using licensed U.S. Air Force patented technology, provides True Dimensional Sound,
helping pilots to more easily discern from simultaneous radio receptions..
1.1.1

Limitations

This article meets the minimum performance and quality control standards required by a technical standard
order (TSO). Installation of this article requires separate approval. Refer to Advisory Circular 20-41A for
information on TSO installation approval.
Operation is subject to the following conditions:

This device may not cause harmful interference.

This device must accept any interference received, including interference that may cause undesired
operation.
1.2

SCOPE

This manual provides installation and operation instructions for the PS Engineering PAC45A-series of Audio
Selector Panel/Intercom Systems. This includes the following units:
Model Number
HUB45R Remote-mounted Audio Hub for analog I/O and processing
CTL45A Panel Mounted Control Head for Flight Crew
GTL45A-M Panel Mounted Control Head for Mission Observers
CTL45A-NVG Panel Mounted Control Head for Flight Crew, Night Vision
Compatible
GTL45A-M NVG Panel Mounted Control Head for Mission Observers,
Night Vision Compatible
1.3

EQUIPMENT DESCRIPTION

The PAC45A is a state-of-the-art audio isolation amplifier and audio selector that contains an automatic voice
activated (VOX) intercom system. It can switch up to eight transceivers (COM 1 to 8) and eight navigation
receivers (AUX 1 to 8) that can be configured as desired.
There are up to five unswitched inputs, available for traffic or EGPWS, autopilot disconnect, and/or radar
altimeter warning.
In addition, nine programmable alerts can be triggered by external sources to provide additional capability.
In addition to a radio master volume, the individual volume controls select the receiver audio source provided
to the headphones when selected to the "out" position.
A nine-station voice activated (VOX) intercom is included in the PAC45A. This system has PS Engineering's
patented IntelliVox® circuitry that eliminates manual adjustments.
200-045-1000
Description
Page 1-1
PS Engineering
Part Number
050-045-1001
050-045-2000
050-045-3000
050-045-4000
050-045-5000
Rev. 2, March 2019