Northern Airborne Technology AA82 User Manual

Installation and Operation Manual

AA82 InterMUSIC™

Stereo Intercom System

SM09-1

ISSUE 4.11

Northern Airborne Technology Ltd.

1925 Kirschner Road

Kelowna, BC, Canada.

Telephone [phone]

Facsimile [phone]

Issued on the authority of Northern Airborne Technology Ltd.

Copyright 2004

V1Y 4N7

AA82 InterMUSIC™ Stereo Intercom System

SM09-1 Installation and Operation Manual

Prepared By: Checked By: Approved By:

The status of this installation and operation manual is controlled by issue shown on the title page. The
status of each section is controlled by revision shown in the footer of each page. All revisions affecting
sections of this manual have been incorporated into the latest issue.

ISSUE/REVISION RECORD

Manual Issue

Number

Section

Revision Number

Revision Description Issue Date

4.11 Section 1 Rev: 1.00
Section 2 Rev: 1.00
Section 3 Rev: 1.00

Updated Installation Kit Information.

Update to current templates.

Aug 29, 2008

Installation and Operation Manual Page ii

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA82 InterMUSIC™ Stereo Intercom System

SM09-1 Installation and Operation Manual

Table of Contents

Section Title Page

1. Description

1.1 Introduction 1-1

1.2 Product Description 1-1

1.3 Design Features 1-1

1.4 Specifications 1-2

1.4.1 Electrical Specifications 1-2

1.4.2 Physical Specifications 1-3

1.4.3 Environmental Specifications 1-3

2. Installation

2.1 Introduction 2-1

2.2 Unpacking and Inspection 2-1

2.2.1 Warranty 2-1

2.3 Continued Airworthiness 2-1

2.4 Installation Procedures 2-2

2.4.1 Warnings 2-2

2.4.2 Cautions 2-2

2.4.3 Cabling and Wiring 2-2

2.4.4 Mounting 2-3

2.4.5 Post Installation Checks 2-3

2.5 Adjustments and Connections 2-3

2.5.1 Radio Settings 2-4

2.5.2 Setting Up Music and Muting 2-4

2.5.3 Setting Balance and Bass Potentiometers 2-4

2.5.4 Other ICS Functions 2-5

2.5.5 Music Selection (AA82-060 only) 2-5

2.5.6 Final Check 2-5

2.6 Accessories Required 2-6

2.7 Installation Drawings 2-7

3. Operation

3.1 Introduction 3-1

3.2 General Information 3-1

3.3 Controls and Indicators 3-1

3.3.1 Stereo & Intercom Special Features 3-2

3.3.2 Logic Explanation 3-2

3.3.3 Tie/Split Operation 3-2

Installation and Operation Manual Page iii

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA82 InterMUSIC™ Stereo Intercom System

SM09-1 Installation and Operation Manual

Section 1 Description

1.1 Introduction

Information in this section consists of product description, design features and specifications for the AA82
InterMUSIC™ Stereo Intercom System. All derivative product information shall be contained in the
applicable manual supplement, which may be obtained from NAT as required.

Review all notes, warnings and cautions.

1.2 Product Description

The AA82 InterMusic™ Stereo Intercom System is a system for passenger entertainment and
communications. The system is available in two models, the AA82-001 and AA82-060. The AA82-001 is
compatible with AA80 intercoms and allows four stereo positions. The AA82-060 is compatible with AA83
intercoms and allows six stereo positions. Each is linked via the ICS Tie Line to the crew audio system.

The AA82 InterMUSIC™ Stereo Intercom offers the passengers full control of their intercom and
entertainment functions. The front panel controls permit adjustment of Intercom level, VOX threshold and
Music level. Internal adjustments set Receive lev e l, Receive balance, ICS balance, ICS bass, Music
muting and Music balance. These controls allow unique features such as making the intercom audio
appear to be coming from the left and receive audio coming from the right, which is helpful in relating the
audio to the source. The stereo audio is muted during intercom operation or when receive audio is
detected, permitting greater intelligibility of in coming transmissions. A front panel annunciator allows
easy visual setting of the VOX threshold and also indicates RX signal reception.

1.3 Design Features

The AA82 uses surface mount technology and provides true stereo music audio to the headset.
The InterMUSIC™ system employs NAT's unique audio processing, which red uces noise and tailors the

frequency response to produce clean, crisp intercom audio.
High output power and low distortion results in better on-board communication and greatly reduces noise

fatigue.
Employing highly integrated stereo audio processors, component numbers were substantially reduced

and product reliability is increased.
With the reduction of component size, more features were incorporated (Adjustable music muting by

intercom and receive audio, bass control of intercom and stereo audio).
Designed into the smallest possible chassis, it allows mounting in the remotest locations (usually close to

the passengers).
The AA82's ICS Tie Line is fully compatible with existing NAT products, making it possible to chain

multiple systems together (3 units max).
The unit has overvoltage and reverse voltage protection to insure operability in severe aircraft

environments.

Section 1 Rev: 1.00 Issue 4 Page 1-1

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA82 InterMUSIC™ Stereo Intercom System

SM09-1 Installation and Operation Manual

1.4 Specifications

1.4.1 Electrical Specifications

Input Power +11 to +32 Vdc
Supply Current 385 mA max. (full output power)
Headset Power 400 mW per channel (total power)

100 mW typical into each headset element (300 Ω/side)
4 headsets (AA82-001)
6 headsets (AA82-060)

Lighting 160 mA at 28 Vdc
600 mA at 5 Vdc

Modes of Operation Voice track trigger circuit
Adjustable threshold on panel
‘Live’ or ‘Hot’ mic by rotating VOX control counterclockwise

Indicators Receive monitor (Green LED)
VOX ICS triggered (Amber LED)

Front Panel Controls ICS Volume
Music Level
VOX Threshold

Internal Side Panel Controls RX Volume
RX Balance
ICS Balance
Music Balance

Inputs (AA82-001) 4 microphone ‘carbon equivalent’, 250 mVrms for full output,

150 Ω input impedance
4 ICS keylines (active ground) for all users
2 music inputs compatible (left & right), configurable for portable

CD/cassette only, phones compatible (3 Vp-p)
Inputs (AA82-060) 6 microphone ‘carbon equivalent’, 250 mVrms for full output,

150 Ω input impedance
6 ICS keylines (active ground) for all users
2 music inputs compatible (left & right), configurable for either

portable CD/cassette, phones compatible (3 Vp-p) or CD

changer Line Out compatible (100-500 mV @ 10 kΩ)
Inputs (all models) 1 radio input, 2.5 Vrms for full output, 1 kΩ input impe dance

1 bi-directional ICS Tie Line, 1 Vp-p for full output, 2 kΩ input

impedance

Section 1 Rev: 1.00 Issue 4 Page 1-2

ENG-FORM: 800-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA82 InterMUSIC™ Stereo Intercom System

SM09-1 Installation and Operation Manual

Outputs (AA82-001) 4 aircraft stereo headsets (300 Ω/side)
Note: Not designed for 8 Ω headsets.

Outputs (AA82-060) 6 aircraft stereo headsets (300 Ω/side)
Note: Not designed for 8 Ω headsets.

Logic ICS and RX audio both mute the music channel
No emergency or transmit functions

1.4.2 Physical Specifications

Height 1.30" (33.0 mm)
Depth 5.60" (142.2 mm) excluding front panel controls
Width 2.60" (66.0 mm)
Weight 0.6 lbs (283.5 g) excluding external hardware
Mounting Horizontal or vertical with reversible faceplate for through-panel

mounting

1.4.3 Environmental Specifications

Temperature -40 to +70°C (operating)

-55 to +85°C (storage)
Altitude 25,000 feet max.
Humidity 95% Non-condensing

Section 1 ends

Section 1 Rev: 1.00 Issue 4 Page 1-3

ENG-FORM: 800-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA82 InterMUSIC™ Stereo Intercom System

SM09-1 Installation and Operation Manual

Section 2 Installation

2.1 Introduction

Information in this section consists of unpacking and inspection procedures, installation procedure s, po st­installation checks and installation drawings for the AA82 InterMUSIC™ Stereo Intercom System.

Review all notes, warnings and cautions.

2.2 Unpacking and Inspection

Unpack the equipment carefully and locate the warranty card. Inspect the unit visually for damage due to
shipping and report all such claims immediately to the carrier involved. Check that all items listed below
are present before proceeding and report any shortage immediately to your supplier:

- Warranty Card

- Operators Manual

- Certificate of Conformity or Release Certification

- Installation kit with faceplate (crimp type connector)

2.2.1 Warranty

All Northern Airborne Technology Ltd. products are warranted for 2 years from date of installation by an
authorized NAT dealer, to be free of defects in workmanship or performance. This warranty covers all
materials and labour, but is exclusive of any transport to deliver the defective unit to and from NAT or its
designated warranty repair center, or any labour to remove or re-install the defective unit in the aircraft.
Contact NAT for any questions regarding this warranty, its applicability to your units and/or for return
authorization. NAT is the final arbitrator concerning warranty administration. Units which have been
physically damaged, burned, immersed in water or otherwise abused beyond the scope of normal use will
not be considered for warranty. WARRANTY IS VOID UNLESS THE PRODUCT IS INSTALLED BY AN
AUTHORIZED NAT DEALER. Product for which a warranty card is not returned shall be warranted from
date of manufacture.

2.3 Continued Airworthiness

Maintenance of the AA82 InterMUSIC™ Stereo Intercom System is ‘on condition’ only. Periodic
maintenance of this product is not required.

Section 2 Rev: 1.00 Issue 4 Page 2-1

ENG-FORM: 805-0117.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.