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AA24/AA25 Series Single User Audio Controller 

SM18 Installation and Operation Manual 

April 14, 2012   Rev: 5.00 

Page 1-1 

ENG-FORM: 800-0100.DOTX 

CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.

Section 1.0 Description 

1.1 Introduction 

This manual contains information on the AA24/AA25 Series Single User Audio Controllers. All derivatives 
will be covered by manual supplements which can be obtained from AEM as required. Information in this 
section consists of purpose of equipment, features and specifications. 

1.2 

Purpose of Equipment 

The AA24/AA25 series single-user Audio Controllers support one headset per box.  Connection to other users 
in the system is made through the ICS Tie line.  The small size and extensive radio and ICS functions make 
this unit an excellent choice for multi-station aircraft. 

The AA24/AA25 series systems provide full boom-mic transmit and ICS functions for the user.  The front panel 
controls permit user adjustment of frequently needed signals, such as intercom audio level, VOX threshold, 
and individual radio receive levels.  Internal adjustments set default values for direct audio level and artificial 
side tone. 

1.3  

Features 

The AA24/AA25 series single-user Audio Controllers support one headset per box.  Connection to other 
users in the system is made through the ICS Tie line. The small size and extensive radio and ICS 
functions make this unit an excellent choice for multi-station aircraft. 

The AA24/AA25 series systems provide full boom-mic transmit and ICS functions for the user.  The front 
panel controls permit user adjustment of frequently needed signals, such as intercom audio level, VOX 
threshold, and individual radio receive levels.  Internal adjustments set default values for direct audio level 
and artificial side tone. 

1.4 Specifications 

1.4.1 Electrical 

Specifications 

Power Supply:
 

 

Voltage  

28Vdc (reverse and over voltage protection) 

  

Current 

 

400 

mA 

Max

 

 

Lighting  

28 Vdc @ 160 mA 

 

 

 

 

 

Headset Power Phone output is nominal 600 

Ω

 load 

   

   Short 

circuit 

protected 

 

 

 

 

 

Typical 200 mW into headset 

 

 

 

 

 

David Clark H10-30/40 series recommended 

Summary of Contents for AA24 Series

Page 1: ...sition to convert product manuals and supporting documentation is an ongoing process and is being addressed on an as needed basis All references to NAT product part numbers and associated images are equivalent to AEM product part numbers Contact info Anodyne Electronics Manufacturing Corp 15 1925 Kirschner Road Kelowna B C Canada V1Y 4N7 Email support aem corp com Toll Free 1 888 763 1088 Phone 1 ...

Page 2: ...AL REV 5 00 April 14 2012 Anodyne Electronics Manufacturing Corp 15 1925 Kirschner Road Kelowna BC Canada V1Y 4N7 Telephone 250 763 1088 Facsimile 250 763 1089 Website www aem corp com 2012 Anodyne Electronics Manufacturing Corp AEM All Rights Reserved SM18 AA24 AA25 Series Single User Audio Controller ...

Page 3: ...LECTRONICS MANUFACTURING CORP COPYRIGHT STATEMENT 2012 Anodyne Electronics Manufacturing Corp AEM All Rights Reserved This publication is the property of AEM and is protected by Canadian copyright laws No part of this document may be reproduced or transmitted in any form or by any means including electronic mechanical photocopying recording or otherwise without the prior written permission of AEM ...

Page 4: ...nstallation and operation manual is controlled by the revision 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 AEM MANUAL REVISIONS Section Revision Number Revision Description Date All Rev 5 00 Updated drawings and template April 14 2012 Tony Pearson Designer Apr 14...

Page 5: ...l Specifications 1 3 1 5 Unit Nomenclature 1 3 2 0 Installation 2 1 General 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 1 2 3 3 Cable and Wiring 2 2 2 3 4 Fuses and breakers 2 2 2 3 5 Ajustments 2 2 2 3 6 Post Installation Checks 2 2 2 4 Continued Airworthiness 2 3 2 5 Accessories Required But Not Supplied 2 3 2 6 Inst...

Page 6: ...s permit user adjustment of frequently needed signals such as intercom audio level VOX threshold and individual radio receive levels Internal adjustments set default values for direct audio level and artificial side tone 1 3 Features The AA24 AA25 series single user Audio Controllers support one headset per box Connection to other users in the system is made through the ICS Tie line The small size...

Page 7: ...ional ICS tie line 1 Vpp for full output 2 2 kΩ input impedance Keylines Transmit key is active low 33 mA of current Intercom key is active low 1 mA of current Intercom line NAT ICS tie line compatible 2 kΩ input impedance 340 mVrms level Output Signals Transmitter audio lines Non adjustable microphone connected directly to radio mic bias supplied by radio Transmitter key lines Hard ground output ...

Page 8: ... 680g Mounting Standard Dzus rails Standard Dzus rails 1 4 3 Environmental Specifications Temperature 40q C to 70q C operating 55q C to 85q C survival Altitude 25 000 feet max Humidity 95 Non condensing Shock 12 g any axis Vibration DO 160B category P panel mounting 6g 1 5 Unit Nomenclature Model Description Distinction AA24 001 COM1 COM2 COM3 COM4 PA NAV ADF DME MKR AUX receive switches 28 Vdc li...

Page 9: ...e immediately to your supplier 2 2 1 Warranty All Anodyne Electronics Manufacturing Corp AEM products are warranted for 2 years See the website www aem corp com warranty for complete details 2 3 Installation Procedures 2 3 1 Warnings Í ÍIMPORTANT Do not bundle any lines from this unit with transmitter coax lines Do not bundle any logic audio or DC lines from this unit with 400 Hz synchro wiring or...

Page 10: ...lamshell 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 the ground connection is clean and well secured 2 3 4 Fuses and Breakers Power protection should be provided through a 1 0 A breaker and not attached to any other existing breaker without additional protection 2 3 5 Adjustments S...

Page 11: ... is often the result of forgetting to connect all required grounds to the radio or external audio system c To verify proper operation all functions and levels should be checked in flight If the unit functions satisfactory make the required log entries and complete the required MOT FAA paperwork before releasing the aircraft for service 2 4 Continued Airworthiness Maintenance of the AA24 001 or AA2...

Page 12: ...04 1 15 Pin Connector Hood 20 29 015 Use as required 2 6 Installation Drawings DRAWING REV DESCRIPTION TYPE SERIAL AA24 001 AA24 001 403 0 1 01 Single User Audio Controller Interconnect 1128 and up AA24 001 405 0 1 02 Single User Audio Controller Connector Map All AA24 001 905 0 2 00 Single User Audio Controller Faceplate All AA24 001 922 0 1 02 Single User Audio Controller Mech Installation All A...

Page 13: ......

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Page 15: ... RX VOL ICS VOL COM 2 COM 2 COM 3 COM 3 COM 4 COM 4 NAV NAV ADF ADF DME DME MKR MKR AUX AUX SHEET REV A SIZE L9015 KELOWNA BC CANADA 250 763 1088 WWW AEM CORP COM AA24 001 2 00 905 0 SINGLE USER AUDIO CONTROLLER 1 1 1 of 3 2 00 RAS 34 CHANGED TO AEM LOGO UPDATED HOLE SCHEDULE 15 Dec 11 MWS 29 Dec 11 Dec 29 11 ...

Page 16: ...NAT LOGO REMOVED Reviewed Approved Tony Pearson Designer Jun 22 2011 ...

Page 17: ......

Page 18: ......

Page 19: ...REMOVE NAT LOGO Reviewed Approved Tony Pearson Designer Jul 4 2011 ...

Page 20: ...NAT LOGO REMOVED Reviewed Approved Tony Pearson Designer Jul 4 2011 ...

Page 21: ... provided to allow emergency alerting audio to pass unmated to the user s headset After transmitting on the radios the user s microphone automatically reverts back to intercom mode The AA25 audio controller also provides central volume adjustment for all the aircraft audio 3 3 Controls and Indicators 3 3 1 Transmit selection The rotary selector switch at the lower left of the panel selects the des...

Page 22: ...e will be at a minimum As the operator rotates the control cw intercom volume will increase In multiple station systems the ICS volume adjusts only the local ICS audio level 3 3 3 2 RX Volume Control The outer knob of the dual control is RX VOL and controls the RX volume for all selected radios With RX VOL fully ccw volume will be at a minimum As the operator rotates the control cw volume will inc...

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