
PS Engineering
PAC24 Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-240-0010
Page 1-1
Rev. 29, Sept. 2021
1 Section I GENERAL INFORMATION
1.1
INTRODUCTION
The PAC24 represents the finest in high-performance cockpit audio control and intercommunications. Us-
ing proprietary
IntelliVox®
design, this unit eliminates the requirements for intercom squelch adjustments.
The unit is designed for outstanding ergonomics and visually defined mode annunciation and selection.
The PAC24 was designed as either a single or a dual audio panel system.
In addition, a version is available that supports a 3
rd
transmit seat if desired (050-240-0400).
The PAC24 –0500 is available where a vertical orientation would be appropriate.
Before installing and/or using this product, please read this manual completely. This will ensure that you
will take full advantage of all the advanced features in the PAC24.
1.2
SCOPE
This manual provides detailed installation and operation instructions for the PS Engineering PAC24-series
of Audio Selector Panel/Intercom Systems. This includes the following units:
Model
Description
Part Number
PAC24
Standard (single or dual installation)
050-240-0100
PAC24
Observer 3
rd
Transmit Seat (Qty. 2 PAC24s)
050-240-0400
PAC24
Standard (same as -0100), with Vertical Orientation
050-240-0500
PAC24
Special Mission Application Units, Vertical
050-240-0503
PAC24
Standard PAC24, but with NVG Compatibility
050-240-8100
PAC24
Observer 3
rd
Transmit Seat (Qty. 2 PAC24s) with NVG
Compatibility
050-240-8400
PAC24
Standard/NVG (same as -8100), with Vertical Orientation
050-240-8500
Where the functions are identical to all units, it will be referred to herein as a PAC24. Otherwise, the appli-
cable units will be specified.
NOTE
: Observer configuration (-0400) units cannot be mixed with Standard configuration units.
Observer units
MUST
be dual installations.
1.3
EQUIPMENT DESCRIPTION
The PAC24-series is a state of the art audio isolation amplifier and audio selector that contains an automat-
ic voice activated (VOX) intercom system. It can switch up to five transceivers (Com 1, Com 2 Com 3
Com 4 and Com 5) and 4 receivers (Nav 1, Nav 2, AUX (or ADF in –0500, -0503) and MKR).
•
Five transceivers
•
Full Duplex available (COM 5)
•
Split mode in single audio panel installation
•
Four switched receivers
•
Two Unswitched inputs
•
Speaker amplifier
•
Separate Public Address output
•
Push-button control with LED indication
•
Intercom with Pilot Isolate and ALL mode (Crew mode with expansion unit)
•
Monaural music input with SoftMute™