Nat AA20-431 Bedienungsanleitung

CONFIDENTIAL AND PROPRIETARY TO WULFSBERG.

SM22

AA20-431

Cabin PA System

INSTALLATION AND OPERATION MANUAL

REV 4.11 February 17, 2011

Wulfsberg Electronics

6400 Wilkinson Drive

Prescott, AZ 86301

Telephone (928) 708-1550

These commodities, technology or software are controlled in accordance with the United States Export Administration Regulations, Export Classification

Control Number(ECCN) EAR99. When exporting, diversion contrary to U.S. law is prohibited.

SM22 Rev. 4.11 AA20-431 Cabin PA System Manual

February 17, 2011 Page ii

ENG-FORM: 820-0109.DOT

CONFIDENTIAL AND PROPRIETARY TO WULFSBERG.

Prepared By: Checked By: Certification: Approved By:

Periodically Wulfsberg 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 Amendment

Date Section(s)

Changed Date

Entered

Entered By

1 Jan 18\05 2

2 Feb 17/09 2

Insert any Amendment Instruction sheets after this page.

Performed at factory

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INSTALL_OPS

MANUAL AMENDMENT

Manual: SM22 (AA20-431) Amendment #: 1

Document # SM22\Install_Ops\809-0001 Amendment Date: Jan 18, 2005

Amendment #1 Jan 18, 2005 Page 1

ENG-FORM: 809-0109.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

The purpose of this amendment is to add the Environmental Qualification Form (521-0)

to section 2.6 and to update section 2.3.5 Cable and Wiring statement paragraph 1.

Amendment Instructions:

1 Remove Pages Replace With Pages

2-1 thru 2-5 Rev 4.10 2-1 thru 2-5 Rev 4.10 Amendment #1

2 Remove Drawings/Documents (Section 2) Replace or add Drawings/Documents (Section 2)

- AA20\431\521-0 Rev 1.00

Note: Ensure that all drawings are inserted in the order shown on the latest drawing lists.

3 Update the Amendment Record sheet at the front of the manual.

4 Insert this page into the manual after the Amendment Record sheet (page ii).

Manual Amendment ends after the following amended pages

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INSTALL_OPS

MANUAL AMENDMENT

Manual: SM22 (AA20-431) Amendment #: 2

Document # SM22\Install_Ops\809-0002 Amendment Date: Feb 17, 2009

Amendment #2 Feb 17, 2009 Page 1

ENG-FORM: 809-0109.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

The purpose of this amendment is to add the latest documents and drawings to the

manual.

Amendment Instructions:

1 Remove Pages Replace With Pages

2-1 and 2-2 Rev 4.10 Amendment #1 2-1 and 2-2 Rev 4.10 Amendment #2

2-5 Rev 4.10 Amendment #1 2-5 Rev 4.10 Amendment #2

2 Remove Drawings (Section 2) Replace or add Drawings (Section 2)

AA20\431\905-0 Rev 1.02 AA20\431\905-0 Rev 1.03

– AA20\431\922-0 Rev 1.20

Note: Ensure that all drawings are inserted in the order shown on the latest drawing lists.

3 Update the Amendment Record sheet at the front of the manual.

4 Insert this page into the manual after the Amendment Record sheet (page ii).

Manual Amendment ends after the following amended pages

These commodities, technology or software are controlled in accordance with the United States Export Administration Regulations, Export Classification

Control Number(ECCN) EAR99. When exporting, diversion contrary to U.S. law is prohibited.

SM22 Rev. 4.10 AA20-431 Cabin PA System Manual

Apr 21, 2004 Page iii

ENG-FORM: 820-0109.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

Table of Contents

Section Title Page

1.0 Description

1.1 Introduction 1-1

1.2 Purpose of Equipment 1-1

1.3 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 1-4

2.0 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 Note to Installers 2-1

2.3.2 Warnings 2-2

2.3.3 Cautions 2-2

2.3.4 Notes 2-2

2.3.5 Cabling and Wiring 2-2

2.3.6 Fuses and Breakers 2-2

2.3.7 Adjustments 2-3

2.3.8 Post Installation Checks 2-4

2.4 Continued Airworthiness 2-5

2.5 Accessories Required But Not Supplied 2-5

2.6 Installation Drawings 2-5

3.0 Operation

3.1 Introduction 3-1

3.2 General 3-1

3.3 Switches and Indicators 3-1

3.3.1 Power Switch 3-1

3.3.2 Speaker switch 3-1

3.4 Chimes 3-2

3.4.1 No Smoking 3-2

3.4.2 Seatbelt 3-2

3.4.3 Message 3-2

3.4.4 PA 3-2

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Control Number(ECCN) EAR99. When exporting, diversion contrary to U.S. law is prohibited.

SM22 Rev. 4.11 AA20-431 Cabin PA System Manual

February 17, 2011 Page 1-1

ENG-FORM: 800-0107.DOT

CONFIDENTIAL AND PROPRIETARY TO WULFSBERG.

Section 1.0 Description

1.1 Introduction

This manual contains information on the AA20-431 Cabin PA System. All derivatives

will be covered by manual supplements which can be obtained from Wulfsberg as

required.

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

1.2 Purpose of Equipment

The AA20-431 is a passenger announcement and entertainment system, capable of

providing a 30 W/8 speaker output for in flight music, messages and advisory tones.

The system also provides eight 150 headset outputs for use in operational

environments where it is not practical to use the speaker output.

The AA20-431 PA controller provides central adjustment for all the PA and music audio

to the passengers. Automatic chime before announcements and soft music muting are

standard features.

1.3 Features

The AA20-431 accepts music inputs from either portable cassette tape/CD players or

remote CD changers/am/fm cassette players. The left and right music inputs are

summed internally.

Music audio will mute and chime will activate prior to cabin pages; this allows for un-

distracted passenger attention. ‘Seat Belt’ and ‘No Smoking’ sign interlocks energize

the chime circuit when enabled and disabled. The Microphone input has an adjustable

sidetone amplifier, which provides ‘PA sidetone’ to the audio controller.

A +3 dB switch input allows the output level to change to suit aircraft operating

conditions.

The AA20-431 features Thermal and Overload protection circuits. These circuits

provide the internal circuitry with protection from over-voltage, over-current and high

temperature conditions.

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Control Number(ECCN) EAR99. When exporting, diversion contrary to U.S. law is prohibited.

AA20-431 Cabin PA System Manual SM22 Rev. 4.11

Page 1-2 February 17, 2011

ENG-FORM: 800-0107.DOT

CONFIDENTIAL AND PROPRIETARY TO WULFSBERG.

1.4 Specifications

1.4.1 Electrical Specifications

Input Power: 22 to 30 Vdc, 280 mA idle (2 A max.)

Lamp Power: +28 Vdc, 80 mA

Inputs:

Music: Two tape inputs, left & right channel mixed

internally

Tape audio levels: 1.0 Vrms @ 1 kHz (Input impedance 8.6 k)

CD audio levels: 400 mVrms @ 1 kHz (Input impedance 10 k)

(Note: remove internal jumpers for CD input)

Microphones: High impedance 150 amplified dynamic. ALC

starts at 70 mVrms. Impedance is 125 10%.

PA Key: Active low. Current source 15 mA max. (chime

will activate only once)

Seat Belt & Active low. Current source 15 mA max.

No Smoking Key: Trigger Voltage 2 Vdc max. (chime will activate

twice, once on keying and again on un-keying)

Message Key: Active high. Current sink 15 mA max. Trigger

voltage 28 Vdc max. (chime will activate twice,

once on keying and again on un-keying)

+3 dB Key: Active open. Current source 1 mA max.

(headset & speaker audio levels will decrease

by 3 dB when grounded)

Outputs:

Headset: Eight outputs – 80 mW max each into 600 @ 10%

THD

Short circuit protected.

Audio Bandwidth: Mic channel –<3 dB, 350 Hz to 3 kHz

Music channel –<3 dB, 150 Hz to 9 kHz

Signal to noise ratio –65 dB

Sidetone: Adjustable 0 –100 mW into 600 @ 10% THD.

Audio bandwidth: <3 dB, 350 Hz to 3 kHz

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Control Number(ECCN) EAR99. When exporting, diversion contrary to U.S. law is prohibited.

SM22 Rev. 4.11 AA20-431 Cabin PA System Manual

February 17, 2011 Page 1-3

ENG-FORM: 800-0107.DOT

CONFIDENTIAL AND PROPRIETARY TO WULFSBERG.

Signal to noise ratio –65 dB

Speaker: 25 W into 8 @ <10% THD

20 W into 8 continuous power with single tone

35 W max @ 26.6% THD into 8 ohms with 1 Vrms

into music input and music and speaker trim pots

fully clockwise.

28 Watts max. @ 10% THD into 8 with 1 Vrms

into the music input.

Impedance and short circuit protected

Audio Bandwidth: Mic channel – <3 dB, 350 Hz to 3 kHz

Music channel – <3 dB, 150 Hz to 9 kHz

Signal-to-noise ratio – 65 dB

Chime: Fixed rate, adjustable level

Miscellaneous:

Temperature Sensor: The unit contains a temperature sensor IC

which when triggered reduces the input signals

by 3 dB

The IC threshold is set to approximately 129C

1.4.2 Physical Specifications

Height: 1.12 (28.45 mm)

Depth: 7.25 (184.15 mm) max.

6.52 (165.61 mm) behind faceplate

Width: 5.75 (146.05 mm) max.

5.00 (127.00 mm) behind faceplate

Weight: 1.3 lbs (610 g)

Mounting: Unit fits standard Dzus rails

Note: requires rails for maximum heat

dissipation

Finish/Material: Chassis & cover are 5052-H32 brushed

aluminum with chromate conversion. Heat

sinks are 6063-T6 aluminum with chromate

conversion

Connectors: Male filtered 37 pin D-subminiature with

Positronics V5 locking tabs.

These commodities, technology or software are controlled in accordance with the United States Export Administration Regulations, Export Classification

Control Number(ECCN) EAR99. When exporting, diversion contrary to U.S. law is prohibited.

AA20-431 Cabin PA System Manual SM22 Rev. 4.11

Page 1-4 February 17, 2011

ENG-FORM: 800-0107.DOT

CONFIDENTIAL AND PROPRIETARY TO WULFSBERG.

1.4.3 Environmental Specifications

Operating Temperature: -30C to +55C

Survival Temperature: -55C to +85C

Altitude: 35,000 ft

Humidity: >95% at +50C

Vibration/Shock: DO-160C, Cat. M, N

TSO Compliance: TSO-C50c, RTCA DO-170 Class II

(Applicable to units s/n 2000 and above)

DO-160C Env. Cat. : C4-BA[MN]XXXXXXABABBTBXXX

1.5 Unit Nomenclature

Model Description

AA20-431 3-tone chime, Seat Belt & No Smoking chime interlock

30 W into 8 .

PA over-ride with sidetone.

End of section 1.0

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Control Number(ECCN) EAR99. When exporting, diversion contrary to U.S. law is prohibited.

SM22 Rev. 4.11 AA20-431 Cabin PA System Manual

February 17, 2011 Page 2-1

ENG-FORM: 805-0106.DOT Amendment #2

CONFIDENTIAL AND PROPRIETARY TO WULFSBERG.

Section 2.0 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:

- AA20-431 Cabin PA System

- 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 Wulfsberg when the installation is

complete. If you fail to complete the warranty card, the warranty will be activated on

date of shipment from Wulfsber.

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

equipment in accordance with applicable regulations. Wulfsberg warranty is not

valid unless the equipment is installed by an authorized Wulfsberg 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 Note to Installers

The AA20-431 is intended for use as a cockpit-mounted control for an internal or

external aircraft PA system, where such a system is not installed to fulfill the

airworthiness requirements for the aircraft or an operating rule.

The AA20-431 is certified to RTCA DO-160C Section 20 (RF Susceptibility) Category T,

for installation in a well-protected electromagnetic environment such as an enclosed

These commodities, technology or software are controlled in accordance with the United States Export Administration Regulations, Export Classification

Control Number(ECCN) EAR99. When exporting, diversion contrary to U.S. law is prohibited.