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AEM SM56 AA9x series Installation and Operation Manual
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AEM SM56 AA9x series is a single-channel audio controller that provides comprehensive control over aircraft audio systems. It allows selection of transmit and receive audio, intercom functions, and audio alerts. The controller features independent controls for each audio channel, allowing for precise adjustment of sidetone, ICS audio, and received audio levels. It supports boom mics for the pilot and co-pilot, enabling ICS and transmit functions via cyclic or yoke switching.
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SPECIAL NOTICE
This product is now licensed to Anodyne Electronics Manufacturing (AEM) from Northern
Airborne Technology (NAT). AEM is responsible for all matters related to this product, including sales, support and repair services.
Please note the transition 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:
[email protected]
Toll Free: 1-888-763-1088
Phone: 1-250-763-1088
Fax: 1-250-763-1089
www.aem-corp.com
SM56
AA9x Series
Single Channel Audio Controller
INSTALLATION AND OPERATION MANUAL
Rev: 2.00 April 19, 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
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
IMPORTANT INFORMATION
This manual has been produced to provide information unique to the
AA9x Series Single Channel Audio Controller. Some of this information has been published previously in the SM01 Service manual (AA90/AMS40
Series Audio Controllers).
The information presented in this manual is for reference purposes only, and is intended to provide general information that can be used by the installer/technician to gain a fundamental understanding of the respective product. It is not intended to cover all variations of the AA9x Series audio controllers. Drawing packages for specific AA95, AA96 and AA97 units can be requested from AEM by contacting the Product Support
Department.
Earlier versions of the AA9x Series (prior to Serial number 6000) may not be covered by the information in this manual. Please refer to SM01, or contact the Product Support Department at AEM.
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 electronics, mechanical, photocopying, recording, or otherwise, without the prior written permission of AEM.
Installation and Operation Manual
ENG-FORM: 820-0100.DOTX
Page ii
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Prepared By:
Tony Pearson
Designer
May 22, 2012
Checked By:
Loen Clement
Designer
May 25/12
Approved By:
Tom Betzelt
Product Support
Manager
May 28, 2012
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.
Manual Issue
Number
1.00
4.00
4.01
ISSUE/REVISION RECORD
Revision Description Section
Revision Number
N/A
N/A
Section 1 Rev: 1.00
Section 2 Rev: 1.00
Section 3 Rev: 1.00
Initial Issue
Split Manual
Update to current templates.
Issue Date
Oct 23, 2002
Nov 10, 2003
Sept 05, 2008
Section
All
AEM MANUAL REVISIONS
Revision Number
Rev 2.00
Revision Description
Updated drawings and template
Date
May 22, 2012
Installation and Operation Manual
ENG-FORM: 820-0100.DOTX
Page iii
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Table of Contents
Section Title Page
3.1
3.2
3.3
3.3.1
3.3.2
3.3.3
3.4
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.5
3.6
3.6.1
3.6.2
1.0 Description
2.1
2.2
2.2.1
2.3
2.4
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.5
2.5.1
2.5.2
2.6
2.7
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.5
Introduction
Product Description
Design Features
2.0 Installation
1-1
1-1
1-1
Specifications 1-2
Electrical Specifications 1-2
Physical Specifications 1-3
Environmental Specifications 1-3
Unit Nomenclature 1-3
Introduction
Unpacking and Inspection
Warranty
Continued Airworthiness
Installation Procedures
Warnings
Cautions
Cabling and Wiring
In-line PTT Cordsets
Post Installation Checks
Adjustments and Connections
Left Side Panel Adjustments
Right Side Panel Adjustments
Accessories Required But Not Supplied
Installation Drawings
3.0 Operation
2-1
2-1
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-4
2-5
2-5
2-6
2-7
2-7
Introduction 3-1
General Information
Controls and Indicators
Receive Audio Select Switches
Transmit Selector Switch
3-1
3-2
3-2
3-3
ICS Functions
Optional Features
ICS ISO and/or PLT ISO Annunciators
ICS CALL Annunciator
ICS CALL Switch
PAT ON/OFF Switch
ICS TIE/SPLIT Switch
Emergency Operation (AA95 and AA97 models only)
Audio Alerting Functions (AA95 and AA97 models only)
Direct Audio
Internal Alerting
3-3
3-5
3-5
3-5
3-5
3-5
3-5
3-6
3-6
3-6
3-6
Installation and Operation Manual
ENG-FORM: 820-0100.DOTX
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Section 1.0 Description
1.1 Introduction
Information in this section consists of product description, design features and specifications for the AA9x
Single Channel Audio Controller. All derivative product information shall be contained in the applicable manual supplement, which may be obtained from AEM as required. Review all notes, warning and cautions.
1.2 Purpose of Equipment
The AA9x series provide control for all aircraft audio, allowing selection of transmit and receive audio, LIVE,
KEYED, or VOX intercom, interface for an additional hand held transmit microphone (hand mic), and pilot isolation/emergency operation.
Transmit and PA functions are controlled with a single rotary switch. Receive audio, ICS operations and tape audio are controlled with toggle switches. Received volume, ICS volume and ICS VOX squelch are individually adjusted with rotary controls. Sidetone (S/T) level is adjustable internally and the AA97 also has an individual RX level control for each transceiver.
1.3 Design Features
The AA9x series are Dzus rail mounted units with lighted faceplates. Transceiver interfacing is accomplished through directly switched microphones. To ensure maximum radio compatibility, it has a ground-reference keyline that incorporates no diodes or other steering components.
Independent control is provided for each audio channel within the controller, allowing sidetone, ICS audio and RX audio to be independently set.
Boom mic support is provided for the pilot and co-pilot, with both ICS and XMIT functions via cyclic or yoke switching. In some models, a third ‘transmit capable’ boom mic is added. Live (Hot Mic) and VOX
ICS are also provided, with a ‘transparent’ function, allowing immediate transmission via this mode without further control panel switching and immediate return to ICS operation on completion. The ICS
(intercom) function is achieved using dynamic noise reduction and active filtering. This provides the clearest possible ICS audio under high ambient noise conditions by rejecting airframe and wind noise and passing only voiceband information.
All audio, except the S/T of the radio in use and certain DIRECT AUDIO input signals, is muted during transmit for clarity. ICS operation allows transmit during any ICS mode by using the transmit PTT switch.
All switches, relay contacts and external connections are gold plated for maximum reliability. Switches and relays are sealed. G10-FR flame retardant circuit boards are postcoated for maximum moisture
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual resistance and corrosion prevention. Relays are sealed, high vibration rated (50g shock), dry nitrogen filled units.
1.4 Specifications
Input Power
Nominal 27.5 Vdc Nominal 0.50 A Max.
27.5 mA
Alert Power 27.5 Vdc Nominal 150 mA Max.
Input Signals
7 Mic channels
1 channel
Audio level 2.5V rms for receiver inputs.
0.25V rms for mic inputs.
1k
: ± 10% for receive inputs.
1k
: ± 10% for mic inputs.
1.6k
: ± 10% for ICS tie input.
1.3k
: ± 10% for Direct Audio 1 input.
100
: ± 10% for Direct Audio 2 input.
Circuitry All
Key lines Pilot & Copilot Transmit PTT.
Output Signals
Up to 7 Transmitter mic outputs (incl. PA)
Headphone
Direct Audio1
Direct Audio 2
Alert level
7.7 Vrms or 100 mW (20 dBm) into 600
: nominal
10 mW (10 dBm) into 600
: nominal
0.1 mW (-10 dBm) 0.25 Vrms into 600
: nominal
90mV rms ±10% into 600
Circuitry Headphones
: nominal
Distortion
Mic and ICS Tie are single ended
<10% THD @ nominal power output
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Audio Noise Level
Output Regulation
>50 dB down from rated output (no signal)
< 10% distortion and <3 dB max. of rated load output power at 400% and 75% of rated load
Bi-directional Signals
Quantity
Audio level
Impedance
1 ICS tie channel
0.34 Vrms for AEM ICS tie
Miscellaneous
Annunciators Green LED will light for transmit operation
Height
Depth
Width
Weight
Mounting
Faceplate
Material/Finish
Connectors
AA95 AA96 AA97
1.90” (48.3 mm)
6.82” (173.2 mm)
5.00” (127.0 mm)
2.1 lbs (955 g)
1.90
” (48.3 mm)
6.82” (173.2 mm)
5.00” (127.0 mm)
2.1 lbs. (955 g)
Dzus rail
3.00” (76.2 mm)
6.82” (173.1 mm)
5.75” (146.1mm)
2.5lbs (1.14 kg)
Engraved acrylic edge lit panel
Chassis & cover are 5050-H32 brushed aluminum with conversion coating finish
Male 50 pin & 37 pin D-submin connectors with slide locks
Temperature -20 q C. to +55q C (ambient)
-55 q C. to +85q C (survival)
Vibration/Shock Conforms to DO160C Cat. ‘N’
Altitude 25,000 feet max
AA95-512 VHF1, VHF2, RT1, RT2, RT3, RT4, XCVRs
NAV, AUX switched Nav-Aids
2 unswitched alerts provided
RX and ICS level controls
ICS Call LED from rear controller
ICS Tie/Split switch
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA95-728
AA95-729
AA96-001
AA96-400
AA97-402
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Full pilot and co-pilot support
2 Comm, 2 FM and AUX XCVR positions
5 Nav-Aids plus music input
KEYED, LIVE, VOX ICS with front panel control
3-level alerting
ICS Call annunciator
Illuminated TX selector knob
1 Direct Audio input
Full support for Doctor, Nurse and Attendant
ICS only for 2 positions plus patient
2 Comm, 2 FM and AUX XCVR positions
ADF, Doppler and music inputs.
1 Direct input
ICS CALL switch, PLT ISO annunciator
5 Nav-Aids plus music input
KEYED, LIVE, VOX ICS with front panel control
Illuminated TX selector knob
TX1, TX2, TX3, TX4, TX5 and PA XCVRs
2 NAV and 2 ADF unswitched RX inputs
No internal alerting
VOX/LIVE ICS with squelch adjustment
Pilot/Co-pilot boom mic support with pilot priority
4 PAX ICS only support
Front panel master RX and ICS level controls
Full support for Jumpmaster and observer
VHF1, VHF2, FM1, FM2 INT and PA XCVRs
2 NAV and 2 ADF unswitched RX inputs
KEYED/LIVE ICS operation
4 PAX ICS only supported
Front panel RX and ICS level controls
PIL ISO annunciator and ICS CALL pushbuttom
VHF1, VHF2, TAC1, TAC2, TAC3, TAC4 XCVRs and PA
Each XCVR has independent RX level adjustment
NAV1, NAV2, ADF1 and DME switched Nav-Aids
1 Direct Audio input
3 Audio alerts installed
TX/PA and locking ISO/EMR switches
No hand mic connection
Pilot/co-pilot boom mic support with pilot priority
4 PAX ICS only supported
Front panel RX and ICS level controls
End of Section 1.0
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Section 2.0 Installation
2.1 Introduction
Information in this section consists of unpacking and inspection procedures, installation procedures, postinstallation checks and installation drawings for the AA9x Series Single Channel Audio Controller.
Note: The AA95, AA96 and AA97 series single channel audio controllers are customized units and may have unique operational features that are different to the options described, or are not covered in this manual. Any questions should be directed to the AEM Product Support Department.
Review all notes, warnings and cautions.
2.2 Unpacking and Inspection
Unpack the equipment carefully. 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:
- AA9x Series Single Channel Audio Controller
- Product Information Card
- Certificate of Conformity or Release Certification
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 Continued Airworthiness
Maintenance of the AA9x Series Single Channel Audio Controller is ‘on condition’ only. Periodic maintenance of this product is not required.
2.4
2.4.1
Installation Procedures
Warnings
WARNING:
High volume settings can cause hearing damage.
Set the headset volume control to the minimum volume setting prior to conducting tests, and slowly increase the headset volume to a comfortable listening level.
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Cautions 2.4.2
CAUTION:
Failure to follow the installation and wiring instructions provided in this manual for power and ground connections, including the rating of the circuit breaker, may lead to damage in the power input circuitry of the unit.
Cabling and Wiring 2.4.3
All wire shall be selected in accordance with the original aircraft manufacturer's Maintenance Instructions or AC43.13-1B Change 1, Paragraphs 11-76 through 11-78. Unshielded wire types shall qualify 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 connector map in
Section 2.7 as required.
Allow 3" from the end of the shielded wiring to the shield termination to allow the connector hood to be easily installed. Reference the interconnect drawing in Section 2.7 for shield termination details. Note that the hood is a "clamshell" hood, and is installed after the wiring is complete.
Maintain wire segregation and route wiring in accordance with the original aircraft manufacturers ’
Maintenance Instructions.
Unless otherwise noted, all wiring shall be a minimum of 22 AWG, except power and ground lines, which shall be a minimum of 20 AWG. Reference the Interconnect drawing for additional specifications. Check that the ground connection is clean and well secured, and that it shares no path with any electrically noisy aircraft accessories such as blowers, turn and bank instruments or similar loads.
2.4.4 In-line PTT Cordsets
In-line, push-to-talk (PTT) cordsets (also known as drop cords) can be used to create/provide PTT capability for the user headsets that do not have yoke or cyclic mounted PTT switches. For headsets connected to the PILOT or COPILOT inputs/outputs of the AA9x series, ICS and TX keylines are needed to properly activate the associated PTT circuitry inside the AA9x series. For headsets connected to the
PASSENGER inputs/outputs of the AA9x series, a method of controlling the microphone on the headset is needed because of the 'hot mic' circuitry. This is best accomplished with a 'mic interrupt' switch in the
PTT cordset.
There are numerous manufacturers of in-line PTT cordsets, offering many 'electrical' variations to accomplish different functions. To meet the operational requirements for headset stations supported by the AA9x series, AEM recommends the dual switch type: a 3-position (momentary/center-off/locking) slider switch for the ICS functions and a momentary push-button switch for the Transmit functions. Both switches provide a ‘mic interrupt’ function. The 3-position ICS switch will allow the user to change the switch settings to match the operational intercom mode that has been selected at the AA9x series
(e.g., LIVE, KEYED or VOX). The cable should have 6 conductors with the MIC and PHONE pairs shielded (MIC wires must be shielded as a minimum). To ensure proper shielding, the shield(s) should be
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual terminated to the MIC LO connection at the airframe connector of the PTT cordset. See Figure 1 below for details.
Figure 1: PTT Cord for Use with AEM Audio Controllers (XMIT and ICS)
To avoid complications in the aircraft, it is recommended that the same type of PTT cordsets be used for all headset locations in the aircraft. It is not good practice to create a situation where a specific cordset is needed for the copilot, which might cause operational errors if moved to a passenger location.
Although in-line PTT cordsets can be used to conveniently address a number of requirements for microphone and PTT control, they can also be a source of trouble if incorrectly configured, or improperly shielded.
Many in-line PTT cordsets use the PHONE LO connection as the ground reference for the ICS and TX
PTT keylines. The PHONE LO connection in the AA9x series is floating, which will lead to incorrect keying of the intercom and radio systems if this type of cordset is used.
In-line PTT cordsets can be a source for crosstalk if the MIC wire pair in the cordset is not shielded. The source of the crosstalk is the high level Phones audio being coupled on to the MIC HI/LO pair in the in-line PTT cordset, because of the lack of shielding for this wire pair. Once the mic line is contaminated, the undesired audio can be sent into the audio system as ‘mic audio’, then processed and distributed to all other audio controllers via the ICS Tie Line.
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
2.4.5 Post Installation Checks
2.4.5.1 Voltage/Resistance Checks
Do not attach the AA9x Series until the following conditions are met.
Check the following: a) Check P101, pins <16> and <17> for +28 Vdc relative to ground. b) Check P101 pin <34> for continuity to ground (less than 0.5
:).
c) Check P102 pin <19> for lights buss voltage. d) Check all Mic, phone, music and key lines for shorts to ground or adjacent pins.
2.4.5.2 Power On Checks
Power up the aircraft’s systems and confirm normal operation of all functions of the AA9x Series. Refer to
Section 3 (Operation) for specific operational details. a) Begin with only the Pilot's headset installed, no hand mic. Confirm correct radio operation, both receive and transmit. Check yoke (or cyclic) switch action. Check radio audio inputs and selection of same. b) If there is a music source in the system turn it on and verify that music is muted in the CREW mode and removed in the PLT ISO mode. Check for proper mute operation. Do not proceed until the radios are functioning correctly. The S/T (sidetone) trimpot accessible through the left side of the controller and the transceiver internal trimpot may have to be adjusted for correct balance for the pilot. Adjustment of the individual radio RX levels should be set first with the AA9x series in Pilot ISO mode; then adjust the AA9x series front panel RX master volume control level in NORMAL mode. c) Unusual buzzes, hums or other background audio are symptomatic of multiple grounds, or noisy external systems such as blowers or pumps sharing wiring with the audio system.
Failure to key or correctly modulate a transmitter is often the result of forgetting to connect all required grounds to the radio or external audio system. d) Check the ICS Modes (ALL, CREW, PLT ISO), and the manual Fail-safe operation. e) Plug in the Co-pilot's headset. Check for correct ICS and SPLIT transmit operation. Check that the Co-pilot loses transmit capability during PLT ISO. Check yoke switch functions. f) Plug in the hand mic, if installed, and test for correct operation in all modes. (Hand mic activation does not illuminate the TX light.) Note that wiring faults for this accessory may cause peculiar loss of ICS or TX functions because it has over-riding priority in the system. g) Plug in any remaining headsets, and check for correct ICS operation. Note that an incorrect cordset (drop cord) or improper jack wiring may cause a wide range of problems from loss of audio to a tone heard in the headset. For further information, see section 2.4.4 above. i) To verify proper operation, all functions and levels shall be checked in-flight. j) Check preset adjustments are completed before aircraft departure.
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Upon satisfactory completion of all performance checks, make all required log book entries, electrical load, weight and balance amendments and other documentation as required by your local regulatory agency before releasing the aircraft for service.
2.5 Adjustments and Connections
The unit is shipped from the factory with all internal adjustments set to the normal test levels. Once installed in the aircraft, it may be desirable to change some of these settings to best suit the local operating environment. The internal adjustments are located on the sides of the unit and are shown in
Figure 2 and Figure 3.
2.5.1 Left Side Panel Adjustments
The trimpots on the left side panel shown in Figure 2 are used to adjust the levels of audio in the user’s headphones. Rotating the trimpots clockwise (cw) increases the level and counter clockwise (ccw) reduces it.
Figure 2: Left Side Panel Adjustments
2.5.1.1 ALERT LEVEL
The ALERT LEVEL trimpot is used to adjust the level for the internally generated Alert signals. Other parameters relating to these signals are adjusted from the right side panel.
2.5.1.2 S/T LEVEL
The S/T LEVEL trimpot adjusts the overall sidetone level of all selected transceivers (from the front panel).
2.5.1.3 VOX LEVEL
The VOX LEVEL trimpot sets the sensitivity level for the front panel VOX control (the level of audio required to activate microphones).
2.5.1.4 POWER ON
The POWER ON LED will illuminate to indicate that the unit is connected to the power supply.
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
2.5.2 Right Side Panel Adjustments
A variety of different signals can be selected to trigger the internal Alert signals. The trimpots on the right side panel shown in Figure 3 are used to adjust the characteristics of the audible signals that the user will hear.
DIR AUD LEVEL
Figure 3: Right Side Panel Adjustments
2.5.2.1
The DIR AUD LEVEL trimpot is used to adjust the audio level of the devices connected to the DIR AUD 1 input.
2.5.2.2 AUDIO ALERTS
AUDIO ALERT 1 is a single tone signal and AUDIO ALERTS 2 and 3 are two-tone signals.
2.5.2.3 TIME
The duration of AUDIO ALERT 3 can be adjusted from one to three seconds using the TIME trimpot.
2.5.2.4 TONE
The pitch of the signals can be adjusted using the relevant TONE trimpot.
2.5.2.5 RATE
The cycling rate of the two-tone signals can be adjusted using the RATE trimpots.
Note: The number and type of adjustments is dependent on the features specific to the particular AA95,
AA96 or AA97 configuration.
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Accessories Required But Not Supplied 2.6
Installation kit p/n AA90-IKC (crimp) (AEM Part No. D50S37SL-IKC) is required to complete the installation. The kit consists of one 50-Pin D-min Female Crimp Kit (D50SL-IKC) and one 37-Pin Dmin Female Crimp Kit (D37SL-IKC):
D50SL-IKC consists of
Quantity Description
50
1*
1*
1
MS Crimp Socket
Jack Screw Set
Lock Clip Set
50 Pin Connector Hood
D37SL-IKC consists of
Quantity Description
37
1*
1*
1
* Use as required.
MS Crimp Socket
Jack Screw Set
Lock Clip Set
37 Pin Connector Hood
20-26-901
20-27-002
20-27-004
20-29-051
20-26-901
20-27-002
20-27-004
20-29-038
2.7 Installation Drawings
Note: There are multiple versions of the AA95, AA96 and AA97. For this reason, the documents listed below are supplied for reference only for units with Serial numbers 6000 and above. If specific model information is required, please contact the Product Support Department at AEM.
TYPE DOCUMENT REV.
DESCRIPTION
AA95 and AA96 (All versions)
AMS43\922-0 1.01
Audio Controller Mechanical Installation
AA95-728
AA95\728\403-0 2.00
Audio Controller
AA95\728\403-1 2.00
Audio Controller
AA95\728\403-2 2.00
Audio Controller
AA95\728\405-0 1.01
Audio Controller
AA95\728\905-0 2.00
Audio Controller
Interconnect
Interconnect
Interconnect
Connector Map
Faceplate
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
AA95-729
AA95\729\403-0 1.00
Audio Controller
AA95\729\403-1 1.02
Audio Controller
AA95\729\403-2 1.01
Audio Controller
AA95\729\405-0 1.02
Audio Controller
AA95\729\905-0 2.00
Audio Controller
AA96-001
AA96\001\403-0 1.00
Audio Controller
AA96\001\403-1 1.00
Audio Controller
AA96\001\403-2 1.00
Audio Controller
AA96\001\405-0 1.00
Audio Controller
AA96\001\905-0 1.11
Audio Controller
AA96-400
AA96\400\403-0 1.01
Audio Controller
AA96\400\403-1 1.01
Audio Controller
AA96\400\403-2 1.01
Audio Controller
AA96\400\405-0 1.01
Audio Controller
AA96\400\905-0 1.11
Audio Controller
AA97-402
AA97\402\403-0 1.02
Audio Controller
AA97\402\403-1 1.02
Audio Controller
AA97\402\403-2 1.02
Audio Controller
AA97\402\405-0 1.01
Audio Controller
AA97\402\905-0 1.11
Audio Controller
AA97\402\922-0 1.00
Audio Controller
Interconnect
Interconnect
Interconnect
Connector Map
Faceplate
Interconnect
Interconnect
Interconnect
Connector Map
Faceplate
Interconnect
Interconnect
Interconnect
Connector Map
Faceplate
Interconnect
Interconnect
Interconnect
Connector Map
Faceplate
Mechanical Installation
Section 2.0 ends following the above documents
May 22, 2012 Rev: 2.00
ENG-FORM: 805-0100.DOTX
Page 2-8
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Tony Pearson
Designer
Mar 7, 2011
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UPDATED TO CURRENT NAT STANDARDS.
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AA95-728
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AUDIO CONTROLLER
905-0
AA95-728
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VHF1 VHF2 TAC1 TAC2 TAC3 TAC4
AA97
-402
0 10 0 10 0
RX-ON
10 0 10 0
NAV1
10
ADF
VHF
1
VHF
2
TAC
1
TAC
2
TAC
3
TAC
4
NAV2 DME
TX PA
ICS
VOX
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ICS VOL
NORMAL TX VHF1 LIVE KEY
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Section 3.0 Operation
3.1 Introduction
Information in this section consists of functional and operational procedures for the AA9x Series Single
Channel Audio Controller.
Note: The AA95, AA96 and AA97 series single channel audio controllers are customized units, and may have unique operational features that are different to the options described, or are not covered in this manual. Any questions should be directed to the AEM Product Support Department.
3.2 General Information
Figure 1: AA9x Operator Accessible Controls
The AA9x provides control for all aircraft audio, allowing selection of transmit and receive audio, LIVE,
KEYED, or VOX intercom and interface for an additional hand held transmit microphone (hand mic). The
AA95 and AA97 series of audio controllers allow selection of pilot isolation/emergency operation.
Sidetone level is adjustable internally, while receive (RX) and intercom (ICS) levels are adjustable on the front panel. In most AA9x configurations, all audio (except the sidetone of the radio in use) is muted during transmit for clarity. In the AA95 and AA97 series of controllers, the directly connected DIRECT
AUDIO 2 input signal (see Section 3.6.1) remains un-muted during transmit. ICS operation will allow transmit during any ICS mode by using the PTT switch.
May 22, 2012 Rev: 2.00
ENG-FORM: 806-0100.DOTX
Page 3-1
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Controls and Indicators 3.3
In all AA9x controllers, transmit and PA functions are controlled with a single rotary selector switch, or (in some configurations) with the TX/PA Select switch. The main receive volume, ICS volume and ICS VOX squelch are individually adjusted with rotary controls. The ICS operations and receive audios are selected using color-coded toggle switches. In the AA95 and AA97 controllers, individual receive audio is selected with color-coded toggle switches. In the AA96 and AA97 controllers, individual receive volumes are adjusted using rotary controls.
3.3.1 Receive Audio Select Switches
Radio Specific Volume Controls
(AA97 only)
Transceiver
Receive
Audio
Switches
NAV
Receive
Audio
Switches
Receive
Volume
Control
Mode Switch TX/PA Select Switch
Figure 2: Receive Audio Select Switches
The transceiver receive audio select switches (white switch bats) are two position switches. When set to the ‘up’ position, the respective transceiver receive audio is selected on. When set to the ‘down’ position, the respective transceiver receive audio is selected off.
The NAV receive audio select switches (blue switch bats) are typically three position switches. When set to the ‘up’ or ‘down’ position, the respective NAV receive audio is selected on. When set to the ‘center-off’ position, the respective NAV receive audio is selected off.
The master receive volume control (RX VOL) adjusts all receive audio concurrently from 1% to full. It is important to set the individual radio volume controls to a nominal level and then use the master receive volume on the audio controller to adjust for changing flight conditions.
May 22, 2012 Rev: 2.00
ENG-FORM: 806-0100.DOTX
Page 3-2
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
When the red mode switch is set to NORMAL (AA95 and AA97’s only), the passengers will hear the radio audio as selected on the controller. The passengers will not hear any radio audio when the red mode switch is in the ISO/EMR position.
3.3.2 Transmit Selector Switch
TX Indicator Transmit Selector Switch
Figure 3: Transmit Select Switch
The transmit selector switch is a six position switch used to select the desired transceiver. For the AA95 and AA96, this switch typically selects the PA function when rotated fully clockwise. When the hand mic or transmit PTT switch is activated, the mic will be coupled to the radio (or PA) selected. The pilot has priority over the copilot during transmit operations.
Receive audio for the transceiver selected is automatically activated as a function of the rotary selector switch and no additional switching is needed to establish outside communication. During transmit, all audio selected is muted except the sidetone of the transceiver in use. In the AA95 and AA97’s, Direct
Audio 2 also remains un-muted during transmit.
The front panel TX indicator will illuminate green when either the pilot or co-pilot transmits. It will not light when the hand mic (if installed) is used.
3.3.3 ICS Functions
Intercom audio may be implemented in three modes: LIVE (on constantly), VOX (voice activated), or
KEYED (active only when switched by ICS PTT switch). It is common to use the LIVE mode during ground operations, startup, etc. and to use VOX or KEYED operation if conditions are so noisy that ‘pilot fatigue’ will result.
May 22, 2012 Rev: 2.00
ENG-FORM: 806-0100.DOTX
Page 3-3
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Figure 4: ICS Switches
LIVE (Hot Mic Operation) 3.3.3.1
ICS mode switch (orange switch bat) set to the up (VOX) position and the VOX squelch control set to the full counter-clockwise position.
3.3.3.2 KEYED ICS (PTT Operation)
ICS toggle switch (orange switch bat) set to the down (KEY) position. In some models of AA9x audio controllers, set the VOX squelch control to the full clockwise position. Keyed ICS is inherent to the pilot and copilot microphone circuits only. Passenger microphone circuits will be LIVE with this mode selected.
3.3.3.3 VOX (Voice Activated)
ICS toggle switch (orange switch bat) set to the up (VOX) position. Set the ICS VOX Squelch control fully counter-clockwise and then slowly rotate clockwise until the intercom just becomes quiet. This setting will vary with ambient noise conditions and the quality and number of microphones connected in the system.
3.3.3.4 General ICS Functions
Passenger ICS audio is LIVE when the controller is in the LIVE or KEYED mode of ICS operation. In the
KEYED mode of operation the passenger microphones are LIVE. Utilize drop cord assemblies incorporating microphone circuit interrupt switches for keyed ICS operation. Passenger ICS is VOX triggered when VOX mode is selected.
All ICS audio is controlled by the front panel ICS volume control and may be varied to suit conditions. The
ICS VOL control provides adjustment from approximately 1% to full output.
In the AA95 and AA97 models the mode switch (red switch bat) is used to select between NORMAL and
PILOT ISO/EMR modes. In the NORMAL position (down), all operations of the ICS are functional as described above. When the switch is in the pilot isolate/emergency position (PILOT ISO/EMR), the pilot is isolated from the passengers. If the controller is operated in the ISO/EMR mode, ICS operation will continue (if there is no fault condition) between the passengers and copilot, but will exclude the pilot. See
Section 3.5 for further details.
May 22, 2012 Rev: 2.00
ENG-FORM: 806-0100.DOTX
Page 3-4
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Optional Features 3.4
Some of the more common optional features can be seen on the AA95-728 (shown in Figure 4, section
3.3.3) and Figure 5 below.
3.4.1
Figure 5: AA95-729
ICS ISO and/or PLT ISO Annunciators
ICS ISO and/or PLT ISO annunciators indicate that the intercom connection to the other audio controllers
(typically the pilot’s) has been switched off.
3.4.2 ICS CALL Annunciator
ICS CALL annunciator indicates that an ICS CALL switch is active and that the intercom connection between the audio controllers needs to be restored.
3.4.3 ICS CALL Switch
ICS CALL switch used to signal other audio controllers (typically the pilot’s) that an ‘isolated’ station needs to communicate with the pilot(s). The output from the switch is normally used to activate a CALL annunciator and/or a CALL tone.
3.4.4 PAT ON/OFF Switch
PAT ON/OFF (Patient Headphone Audio Select) switch allows the crew to select the patient audio ON or
OFF.
3.4.5 ICS TIE/SPLIT Switch
ICS TIE/SPLIT switch allows for local selection of the intercom connection to other audio controllers in the aircraft intercom system. In the TIE position, intercom audio is shared with all other audio controllers. In the SPLIT position, intercom audio to/from all other audio controllers is deselected.
May 22, 2012 Rev: 2.00
ENG-FORM: 806-0100.DOTX
Page 3-5
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA9x Series Single Channel Audio Controller
SM56 Installation and Operation Manual
Emergency Operation (AA95 and AA97 models only) 3.5
When the red PILOT ISO EMR/NORMAL mode switch is set to the ISO/EMR position, the pilot is removed from the ICS bus and connected directly to the selected radios. This mode should be selected in the event of a box fault or power failure.
In the ISO/EMR mode, all functions are retained by the pilot, except ICS and possibly boom mic operation. If the box or airframe fault prevents the TX annunciator from lighting during transmit (indicating a failure in the mic keying circuit), then the hand mic should be used. A power fault of any kind will prevent the TX annunciator from lighting, giving an immediate indication of failure. If ICS audio is still available, then the power to the controller has not failed, and loss of the TX light indicates TX switch failure.
In the ISO/EMR mode, all switches work exactly as they do during NORMAL operation, except for the RX and ICS volume controls, which have no effect. The ISO/EMR function should be tested prior to flight to ensure proper operation and allow the radio levels to be set adequately for emergency operation.
Any selected receive audio is switched to the primary user (pilot) in the ‘emergency’ mode, but not to any passengers in the system. Audio level will be lower than in NORMAL operation because the signals are obtained directly from the radios, bypassing the electronics in the controller. This is provided for failure situations that make operation impossible in the NORMAL mode (i.e. loss of power or amplifier failure, etc.).
3.6 Audio Alerting Functions (AA95 and AA97 models only)
Two types of audio alerting are supported, Direct Audio and Internal Alerting. The use of these alerting features should be determined, defined and recorded so that the operator has an opportunity to use these features as they were intended for their specific installation.
3.6.1 Direct Audio
Direct Audio is when an audio signal from an existing warning system is connected ‘directly’ into the audio system and is not front panel selectable. There are usually two Direct Audio inputs on the AA95 and
AA97. Typically, Direct Audio 1 is an amplified/adjustable input and Direct Audio 2 input connects directly to the pilot's headset output.
3.6.2 Internal Alerting
Internal Alerting is provided by up to three separate, internal tone generators that are coupled to the headset output. These tones are a function of the AA95 or AA97 itself and can be used to supplement existing warning tones (Low Rotor, Engine Out warnings in a Bell 206) or provide unique alerting capability for functions such as ICS Call, Rad Alt DH warning, etc. The internal alerts are configuration specific and how they will be used is determined at the time of installation. The Internal alerts are not front panel selectable.
End of Section 3.0
May 22, 2012 Rev: 2.00
ENG-FORM: 806-0100.DOTX
Page 3-6
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
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