Northern Airborne Technology AA35 User Manual

Installation and Operation Manual

AA35-001

Audio Mixer Panel

SM25

ISSUE 4.01

Northern Airborne Technology Ltd.

1925 Kirschner Road

Kelowna, BC, Canada.

Telephone [phone]

Facsimile [phone]

Issued on the authority of Northern Airborne Technology Ltd.

Copyright 2003

V1Y 4N7

AA35-001 Audio Mixer Panel

SM25 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

4.01 Section 1 Rev: 1.00

Rewritten in latest format Oct 10, 2008
Section 2 Rev: 1.00
Section 3 Rev: 1.00

4.00 N/A Split Manual format. Nov 20, 2003

Installation and Operation Manual Page ii

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA35-001 Audio Mixer Panel

SM25 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 1-1

1.4.1 Electrical Specifications 1-1

1.4.2 Physical Specifications 1-2

1.4.3 Environmental Specifications 1-2

1.5 Unit Nomenclature 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 2-1

2.4.1 Warnings 2-1

2.4.2 Cautions 2-2

2.4.3 Cabling and Wiring 2-2

2.4.4 Post Installation Checks 2-2

2.5 Adjustments and Connections 2-3

2.5.1 8/600 Ω Adjustment 2-3

2.5.2 Input Audio Level Adjustment 2-3

2.5.3 Composite Output Level Adjustment 2-3

2.6 Accessories Required But Not Supplied 2-4

2.7 Installation Drawings 2-4

3. Operation

3.1 Introduction 3-1

3.2 General Information 3-1

3.3 Controls and Indicators 3-1

3.3.1 Channel Controls 3-1

Installation and Operation Manual Page iii

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA35-001 Audio Mixer Panel

SM25 Installation and Operation Manual

Section 1 Description

1.1 Introduction

Information in this section consists of product description, design features and specifications for the
AA35-001 Audio Mixer Panel. 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 AA35-001 Audio Mixer Panel is a six channel summing amplifier with independent level control for
each input. It can be used as an expansion panel for existing audio controllers.

The AA35 is also available in remote mount configurations (see Section 1.5)

1.3 Design Features

The AA35-001 Audio Mixer Panel provides six independent channels with differential inputs and balanced
outputs for high common mode noise rejection. Also provided is a composite output. Each channel is
individually adjustable with a 40 dB range. The input audio level is internally selectable by DIP switch to

2.5 or 7 Vrms. Output impedance of each channel is individually selectable via internal jumpers to allow
the connection of an 8 or 600 Ω load.

1.4 Specifications

1.4.1 Electrical Specifications

Input Voltage 27.5 Vdc (nominal)
Input Current 275 mA (nominal)
Lighting 80 mA @ 27.5 Vdc

Input Signals

Channels 6 independent channels
Impedance 4.0 kΩ +/- 10%
Audio level 2.5 or 7 Vrms. Selectable by DIP switch
Circuitry Type: Differential input for high common mode noise rejection.
Coupling: <-40 dB input to input Crosstalk

Section 1 Rev: 1.00 Issue 4 Page 1-1

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA35-001 Audio Mixer Panel

SM25 Installation and Operation Manual

Output Signals

1.4.2 Physical Specifications

Channels 6 inde p e n d ent c h a n n e ls pl u s 1 c o m p o s i t e o u t p u t
Rated level 7.7 Vrms or 100 mW into 600 Ω

1.3 Vrms or 200 mW into 8 Ω
Impedance 20 Ω max
Frequency Response <3 dB from 3 50 to 6000 Hz
Distortion <10% THD @ Rated power output
Circuitry Type: Balanced output for high common mode noise rejection.
Coupling: <-50 dB input to output Crosstalk.
Audio Noise Level Without Si gnal: >60 dB down from rated output level.
Output Regulation at 400% <10% distortion / Δ3 dB max. of rat ed output power.

and 75% of rated load.:

Height 1.12" (28.4 mm)
Depth

5.68" (144.27 mm) overall

4.78" (121.14 mm) behind panel
Width (max) 5.75" (146.05 mm) (faceplate)
Width (box) 4.90" (124.46 mm) (behind panel)
Weight 1.1 lb (500 g)
Mounting Dzus Rail
Faceplate Laser etched acrylic back-lit panel
Material/Finish

Chassis and cover 5052-H32 brushed aluminum with
chromate conversion finish

1.4.3 Environmental Specifications

Temperature:
Operating -45° C to +70° C
Survival -55° C to +85° C

Altitude 35,000 ft. max
Humidity 95%
Vibration/Shock DO-160C, Cat. N/B/M

Section 1 Rev: 1.00 Issue 4 Page 1-2

ENG-FORM: 800-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

AA35-001 Audio Mixer Panel

SM25 Installation and Operation Manual

1.5 Unit Nomenclature

These products are included for reference only. For more detailed information on these and other AA35
products, contact the Product Support Department at NAT Ltd.

AA35-001 Dzus mount audio mixer / summing amplifier panel

Provides signal combinations of up to six in / six out or six in / one composite out

2.5 Vrms or 7 Vrms input level
Output 7.7 Vrms or 100 mW/600 Ohm Max
Panel Lighting 28 Vdc (normal)

AA35-100 Remote mount audio mixer / summing amplifier

Provides signal combinations of up to six in / six out or six in / one composite out

2.5 Vrms or 7 Vrms input level
Output 7.7 Vrms or 100 mW/600 Ohm Max

AA35-400 Remote mount audio mixer / summing amplifier for TAWS applications

Provides signal combinations of up to three in / three out or three in / one composite out

2.5 Vrms or 7 Vrms input level
Output 7.7 Vrms or 100 mW/600 Ohm Max

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.