Northern Airborne Technology AA30-3xx User Manual

SM74

AA30-301
Expansion Panel

INSTALLATION AND OPERATION MANUAL

REV 4.10 October 16, 2006

Northern Airborne Technology Ltd.

1925 Kirschner Road

Kelowna, BC, Canada.

V1Y 4N7

Telephone [phone]

Facsimile [phone]

Copyright 2006 by Northern Airborne Technology

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

SM74 Rev. 4.10 AA30-301 Expansion Panel Manual

Periodically NAT will release manual amendments. In order to maintain the most
accurate and up to date manual these amendments should be carried out immediately
upon receipt and recorded on the following amendment record.

AMENDMENT RECORD

Amendment

Number

Note: Revision 4.00 was the first public release of this document

Amendment

Date

Section(s)

Changed

Date

Entered

Entered By

Insert any Amendment Instruction sheets after this page.

Oct 16, 2006 Page ii

ENG-FORM: 820-0110.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

SM74 Rev. 4.10 AA30-301 Expansion Panel Manual

Table of Contents

Section Title Page

1 Description

1.1 Introduction 1-1

1.2 Purpose of Equipment 1-1

1.3 Features 1-1

1.4 Specifications 1-1

1.4.1 Electrical Specifications 1-1

1.4.2 Physical Specifications 1-3

1.4.3 Environmental Specifications 1-3

1.4.4 Certification 1-4

2 Installation

2.1 Introduction 2-1

2.2 Unpacking and Inspection 2-1

2.2.1 Warranty 2-1

2.3 Installation Procedures 2-1

2.3.1 Warnings 2-1

2.3.2 Cautions 2-2

2.3.3 Cabling and Wiring 2-2

2.3.4 Post-Installation Checks 2-2

2.3.5 Adjustments 2-3

2.4 Continued Airworthiness 2-3

2.5 Accessories Required But Not Supplied 2-4

2.6 Installation Drawings 2-4

3 Operation

3.1 Introduction 3-1

3.2 General 3-1

3.3 Controls and Indicators 3-1

3.3.1 Transmitter Selection 3-2

3.3.2 Receiver Selection 3-2

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ENG-FORM: 820-0110.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

SM74 Rev. 4.10 AA30-301 Expansion Panel Manual

Section 1 Description

1.1 Introduction

This manual contains information on the AA30-301 Expansion Panel. All derivative
products will be covered by manual supplements, which can be obtained from NAT as
required.

Information in this section consists of purpose of equipment, features and specifications.

1.2 Purpose of Equipment

The AA30-301 is a Dzus-mounted 4-transceiver radio receiver expansion panel,
designed to work in conjunction with the 380-series Audio Selector Panels.

1.3 Features

The AA30-301 provides four ganged transmitter selector pushbutton switches and four
receiver level panel potentiometers, each with an integral push-in / push-out selector
switch, and utilizes the subassembly from a 247 Audio Mixing Amplifier for signal
mixing, amplification and processing.

The AA30-301 is designed to be used in conjunction with a 380 panel to expand a
single 380-series transmit microphone output into 4 outputs, and to expand a single
380-series receive audio input into 4 inputs.

The AA30-301 permits the audio system to support more receivers/transceivers than a
single 380-series panel is capable of individually.

1.4 Specifications

1.4.1 Electrical Specifications

Power Supply Linear regulated supply with input reverse-polarity and

overvoltage protection.

Operating: Nominal 28.0 Vdc
Minimum 22.0 Vdc
Maximum 30.3 Vdc
Current 0.18 A max. (0.04 A nom.)

Lighting: Nominal 28.0 Vdc
Maximum 30.3 Vdc
Current 0.25 A max. (0.17 A nom.)

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

AA30-301 Expansion Panel Manual SM74 Rev. 4.10

Input Signals

Description Q'ty Level Impedance Circuitry Type

Receiver Audio (J101)

COM1 RX IN
COM2 RX IN
COM3 RX IN

4 Rated:

5.5 Vrms

Range:

0.8 to 8.0 Vrms

2.1 kΩ audio, unbalanced

COM4 RX IN
Transmitter Mic (J102)

COM MIC IN
Transmitter Key (J102)

COM KEY IN

1 250 mVrms

nominal

1 1 A max. n/a direct connection

n/a direct connection

through switch

contact

through switch

contact

Output Signals

Description Q'ty Level Impedance Circuitry Type

Receiver Audio (J101)

RX AUDIO OUT

Transmitter Mic (J102)

1 Rated:

4.0 Vrms
[27 mW]

Output: 100 Ω

Rated Load:

600 Ω

4 n/a n/a direct connection,

audio, unbalanced

switch contact
COM1 MIC OUT
COM2 MIC OUT
COM3 MIC OUT
COM4 MIC OUT
Transmitter Key (J102)

4 n/a n/a direct connection,

switch contact
COM1 KEY OUT
COM2 KEY OUT
COM3 KEY OUT
COM4 KEY OUT

1.4.1.1 Audio Performance (TSO-C139 and RTCA/DO-214 Class Ib)

Applicable to serial numbers 3001 and above.

Audio Frequency Response ≤3 dB variance, 300 to 5500 Hz

Spurious Response ≥50 dB below Rated Output Power

Distortion ≤10% at Rated Output Power
≤3% THD+N at 10% Rated Output Power

Output Regulation ≤3 dB change

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

SM74 Rev. 4.10 AA30-301 Expansion Panel Manual

Crosstalk: Input to Output ≥55 dB below reference signal
Input to Input ≥60 dB below reference signal
Input to Mic Output ≤1.0 mV

Intermodulation Distortion ≥30 dB below reference tones

Audio Noise without signal ≥50 dB below Rated Output Power

Signal plus noise degradation >9 dB signal plus noise-to-noise

1.4.2 Physical Specifications

Height 1.14" (28.8 mm) max

Depth behind panel 6.22" (158.0 mm) max excluding connectors

Width 5.02" (127.5 mm) max behind panel

Weight 1.15 lb (0.52 kg) max

Mounting Dzus rail, 4 fasteners 5.366" horizontal spacing,

0.750" vertical spacing

Faceplate Laser-engraved edge-lit panel with blue/white

lighting

Material/Finish Chassis and cover are 5052-H32 brushed

aluminum with chromate conversion finish.

Connectors: J101 Receive I/O and Power Connections

One male 25-pin D-subminiature connector
with jackpost hardware

J102 Mic and Key I/O Connections:

One female 25-pin D-subminiature connector
with jackpost hardware

Installation kit: AA12-IKC (D25P25SL-IKC)

1.4.3 Environmental Specifications

Temperature -55 °C to +70 °C

Altitude +55,000 ft.

Humidity >95%, 48 hours

Shock 6g for 11 ms in all axes

Qualification:

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

AA30-301 Expansion Panel Manual SM74 Rev. 4.10

Up to serial number 3000:

Internal Model 247 amplifier subassembly meets the requirements of TSO-C50c and
RTCA/DO-160C

Env. Cat: [A2F2]-BA[CL]XXXXXXZ[BZ]AAATZ[XXC2]XX.

Serial number 3001 and higher:

RTCA/DO-160E Env. Cat. [(A2)(F2)-]BAB[(RBB1)(SM)]XXXXXXZZAZ[AC][TT]M[XXC1X]XXXX

Note: Refer to the Environmental Qualification Form in Section 2.6 of this manual for

complete details of the environmental categories.

1.4.4 Certification

Applicable to serial number 3001 and above:

FAA TSO-C139 Aircraft Audio Systems and Equipment
RTCA DO-214 Class Ib Audio Systems characteristics and minimum operational

performance standards for audio systems and equipment.

End of section 1

Page 1-4 Oct 16, 2006

ENG-FORM: 800-0108.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

SM74 Rev. 4.10 AA30-301 Expansion Panel Manual

Section 2 Installation

2.1 Introduction

Information in this section consists of: unpacking and inspection procedures, installation
procedures, post-installation checks, and installation drawings.

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. Note that each unit should have the following:

- AA30-301 Expansion Panel

- Warranty Card

- Operator’s Manual

- Release certification

Verify that all items are present before proceeding and report any shortage immediately
to your supplier.

2.2.1 Warranty

Complete the warranty card information and send it to NAT when the installation is
complete. If you fail to complete the warranty card, the warranty will be activated on
date of shipment from NAT.

Note: An appropriately rated facility, e.g. Certified Aircraft Repair Station, must install

this equipment in accordance with applicable regulations. NAT Ltd’s warranty is
not valid unless the equipment is installed by an authorized NAT Dealer. Failure
to follow any of the installation instructions, or installation by a non-certified
individual or agency will void the warranty, and may result in a non-airworthy
installation.

2.3 Installation Procedures

2.3.1 Warnings

Do not bundle any lines from this unit with transmitter coax lines. Do not bundle any
audio or DC power lines from this unit with 400 Hz synchro wiring or AC power lines. Do
not position this unit or wiring from this unit next to any device with a strong alternating
magnetic field such as an inverter, or significant audio interference will result.

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AA30-301 Expansion Panel Manual SM74 Rev. 4.10

2.3.2 Cautions

In all installations, use shielded cable exactly as shown and ground as indicated.
Significant ground loop and noise problems may result from not following these
guidelines.

The shielding and routing of the receive audio lines used in the AA30-301 installation is
very critical and poor performance of the aircraft audio system will result if the
installation shown on Interconnect drawing AA30\301\403-0 and -1 is not followed.

2.3.3 Cabling and Wiring

All unshielded wire shall be selected in accordance with AC43.13-1B Change 1,
Paragraphs 11-76 through 11-78. Wire types should be to MIL-W-22759 as specified in
AC43.13-1B Change 1, Paragraphs 11-85, 11-86, and listed in Table 11-11. For
shielded wire applications, use Tefzel MIL-C-27500 shielded wire with solder sleeves
(for shield terminations) to make the most compact and easily terminated interconnect.
Follow the wiring diagrams in Section 2.6 as required.

Allow 3 inches from the end of the wire to the shield termination to allow the hood to be
easily installed. Note that the hood is a ‘clamshell’ hood, and is installed after the wiring
is complete.

All wiring should be at least 22 AWG, except power and ground lines, which should be
at least 20 AWG. Ensure that all ground connections are clean and well secured.

2.3.4 Post-Installation Checks

2.3.4.1 Voltage/Resistance Checks

Check the following:

a) P101 pin <13> for +28 Vdc avionics buss voltage.

b) P101 pin <12> for +28 Vdc lighting buss voltage.

c) P101 pins <15> <16> <18> <20> <22> and <25> for continuity to ground (power).

d) P101 pin <24> for continuity to ground (lighting).

2.3.4.2 Power On Checks

WARNING:

High volume settings can cause hearing damage.

Set the headset volume control to the minimum volume

setting prior to conducting audio tests, and slowly increase

the headset volume level to a comfortable listening level.

Page 2-2 Oct 16, 2006

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