Power And Fail Safe - PS Engineering PAC45 System Pilot's Manual And Operation Manual

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Table of Contents

This section provides detailed operating instructions for the PS Engineering

PAC45, Audio Selector Panel/Intercom Systems. Please read it carefully

before using the equipment so that you can take full advantage of its capabil-

ities.

This section is divided into sections covering the basic operating areas of the

PAC45 systems. They are Communications Transceiver Selection, Audio

Selector, Intercom, and special functions, including the Bluetooth® func-

tionality in the PAC45.

Power and Fail Safe

Unit power is controlled by the transmitter (XMT) selector knob. In the

"EMG" or off (fully clockwise) position, the pilot headset is connected di-

rectly to COM 1 as well as alerts and unswitched input #1. This allows com-

munication capability regardless of unit condition. NAV1 audio is also pro-

vided to the pilot in the other ear of a stereo headset.

Any time power is removed or turned off, the audio selector will revert to

fail-safe mode. If fail-safe audio is present in both ears of a stereo headset,

or completely absent, verify that a stereo headset is used and is selected for

Page 2

PAC45 Operating Controls

stereo mode.

The power controls all audio selector panel

functions, and intercom.

202-045-0100

July 2019 PAC45 Pilot Guide

Table of Contents

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