AEM LSC22 User manual

CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
INSTALLATION AND OPERATION MANUAL
REV 1.00 January 24, 2017
Anodyne Electronics Manufacturing Corp.
15-1925 Kirschner Road
Kelowna, BC, Canada.
V1Y 4N7
Telephone [phone]
Facsimile [phone]
Website: www.aem-corp.com
© 2017 Anodyne Electronics Manufacturing Corp. (AEM),
All Rights Reserved
ASM-LSC22
LSC22
Loudspeaker Controller

LSC22 Loudspeaker Controller
ASM-LSC22 Installation and Operation Manual
Installation and Operation Manual Page ii
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
COPYRIGHT STATEMENT
© 2017 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.

LSC22 Loudspeaker Controller
ASM-LSC22 Installation and Operation Manual
Installation and Operation Manual Page iii
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Prepared By:
Checked By:
Approved By:
The status of this installation 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: 1.00
Initial release
Jan 24, 2017
Tony Pearson
Designer
Jan 24, 2017
Steve Kempf
Designer
Feb 1/17
Tom Betzelt
Product Support Manager
Feb 1, 2017
Todd Blackstock
R&D Manager
Feb 2/17

LSC22 Loudspeaker Controller
ASM-LSC22 Installation and Operation Manual
Installation and Operation Manual Page iv
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Table of Contents
Section Title Page
1.0 Description
1.1 Introduction 1-1
1.2 Product Description 1-1
1.3 Design Features 1-1
1.4 Specifications 1-2
1.4.1 Electrical Specifications 1-2
1.4.2 Physical Specifications 1-5
1.4.3 Environmental Specifications 1-5
1.4.4 Product Approval/Certification 1-6
1.5 Unit Nomenclature 1-6
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 Warnings 2-1
2.3.2 Cautions 2-1
2.3.3 Cabling and Wiring 2-2
2.3.4 Post-Installation Checks 2-2
2.4 Adjustments and Connections 2-3
2.5 Accessories Required But Not Supplied 2-3
2.6 Continued Airworthiness 2-4
2.7 Installation Drawings 2-4
3.0 Operation
3.1 Introduction 3-1
3.2 General 3-1
3.3 Controls and Indicators 3-1
3.3.1 Message Selection/Function 3-1
3.3.2 AUX Input 3-3
3.3.3 Input Selection 3-3
3.3.4 Output Selection 3-3
3.3.5 Siren Selection 3-4
3.3.6 System On/Off & Volume 3-4
3.4 Sidetone 3-4
3.5 -3bB Select 3-4

LSC22 Loudspeaker Controller
ASM-LSC22 Installation and Operation Manual
January 24, 2017 Rev: 1.00 Page 1-1
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Section 1.0 Description
1.1 Introduction
Information in this section consists of product description, design features and specifications for the LSC22
Loudspeaker Controller. All derivative product information will be contained in the applicable manual
supplement, which may be obtained from AEM as required.
Review all notes, warnings and cautions.
1.2 Product Description
The LSC22 Loudspeaker Controller is designed to provide centralized control for an aircraft’s internal and
external loudspeaker systems.
The design is contained in one panel mounted unit, with an illuminated faceplate.
All audio and key lines are interfaced to existing aircraft audio systems.
Front panel switches provide selection of the various operational modes of the LSC22 and a
potentiometer provides output volume control.
Onboard flash memory provides a means to record messages for playback at a later time. A front panel
connector provides programming/recording access.
1.3 Design Features
The LSC22 provides selection and control of internal or external PA system(s) installed in an aircraft. An
integrated 25W speaker driver circuit is designed to drive one 8 Ohm speaker arrangement for internal
paging. The LSC22 also provides one low level audio signal external output that can drive the input on a
remote mounted power amplifier.
The LSC22 generates wail and yelp siren audio for use with a remote power amplifier and speaker
system.
A ‘-3dB’ function allows the output level of the system to be reduced by 3 dB when the input control line is
grounded. Removing the ground returns the system to full output. This function is used to create an “auto
level control’ that automatically increases the system output volume following engine start.

LSC22 Loudspeaker Controller
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January 24, 2017 Rev: 1.00 Page 1-2
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
The amplifier is thermal and short circuit protected to prevent damage. The built in power supply is
overcurrent and reverse polarity protected.
Front panel switches provide selection of the various operational modes of the LSC22 including a
VOL/PWR which provides volume control of the selected output and a means of turning off the system.
One front panel Auxiliary input jack provides both an input audio from an external device and a
maintenance mode USB connection that enables loading of audio wave files.
1.4 Specifications
1.4.1 Electrical Specifications
1.4.1.1 Input Operating Voltage
Normal Operating Conditions:
Nominal: +28.0 Vdc
Maximum: +30.3 Vdc
Minimum: +22.0 Vdc
Emergency: +18.0 Vdc
Abnormal Operating Conditions:
Maximum: +32.2 Vdc
Minimum: +20.5 Vdc
1.4.1.2 Input Operating Current
Input Current:
2.0 A max @ 28.0 Vdc
0.2 A idle max @ 28.0 Vdc
Backlighting Current:
28V Lights Power: 10 mA max @ +28.0 Vdc
5V Lights Power: 10 mA max @ +5.0 Vdc

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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4.1.3 Input Signals
Microphone Audio (MIC HI)
Quantity: 1
Microphone Type: Amplified dynamic/electret
Circuit Type: Single-Ended
Rated Level: 250 mVrms (TBD) ± 10%
Impedance: 150 Ohm ± 10%
Mic Bias: +12Vdc min
Compression: 85 mVrms rotation point, 1.5:1 compression ratio
Radio Audio Input (RADIO HI)
Quantity: 1
Circuit Type: Single-Ended
Rated Level: 2.5 Vrms ± 10%
Impedance: 1 kOhm ± 10%
Auxiliary Audio Input Interface Connector (AUX LEFT/AUX RIGHT)
Quantity: 1
Circuit Type: Single-Ended, Stereo
Rated Level: 500 mVrms ± 10%
Impedance: 1 kOhm ± 10%
Compression: 200 mVrms rotation point, 1.5:1 comp ratio
Auxiliary Audio Input Front Panel Jack (AUX LEFT/AUX RIGHT)
Quantity: 1
Circuit Type: Single-Ended, Stereo
Rated Level: 500 mVrms ± 10%
Impedance: 1 kOhm ± 10%
Compression: 200 mVrms rotation point, 1.5:1 comp ratio
Mic Key Input (MIC KEY)
Quantity: 1
Rated Level: Gnd (active low), 1 Vdc maximum
Current In: ≤10 mA
-3 dB Control Input (-3DB SELECT)
Quantity: 1
Rated Level: Gnd (active low), 1 Vdc maximum
Current In: ≤10 mA
Siren Key Input (SIREN KEY)
Quantity: 1
Rated Level: Gnd (active low), 1 Vdc maximum
Current In: ≤10 mA
Play Once Input (PLAY ONCE)
Quantity: 1
Rated Level: Gnd (active low), 1 Vdc maximum
Current In: ≤10 mA

LSC22 Loudspeaker Controller
ASM-LSC22 Installation and Operation Manual
January 24, 2017 Rev: 1.00 Page 1-4
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4.1.3 Output Signals
Internal PA Audio (INT PA HI/LO)
Quantity: 1
Circuit Type: Differential
Rated Level: 25W (14.15 ± 10% Vrms)
Rated Load Impedance: 8 Ohms ± 10%
Output Impedance: ≤ 3 Ohms
Frequency Response: ≤ 3 dB from 200 Hz to 6 kHz
Distortion: ≤ 10% @ rated output
Audio Noise Level: ≥-60 dB from rated output
Sidetone Audio (SIDETONE HI/LO)
Quantity: 1
Circuit Type: Balanced
Rated Level: 7.75 Vrms ± 10%
Rated Load Impedance: 600 Ohms ± 10%
Output Impedance: ≤ 75 Ohms
Frequency Response: ≤ 3 dB from 200 Hz to 6 kHz
Distortion: ≤10% @ Rated output
Audio Noise Level: ≥-60 dB from rated output
External PA Audio (EXT PA HI/LO)
Quantity: 1
Circuit Type: Balanced
Rated Level: Selectable
500 mVrms ± 10% (LSA400/800, PA250/700) or
6.5 Vrms ± 10% (PA110/PA220)
Rated Load Impedance: 600 Ohms ± 10%
Output Impedance: ≤ 75 Ohms
Frequency Response: ≤ 3 dB from 200 Hz to 6 kHz
Distortion: ≤10% @ Rated output
Audio Noise Level: ≥-60 dB from rated output
Switched Power Output (SWITCHED POWER)
Quantity: 1
Rated Level: 26.5 Vdc (active high)
Current Output: 0.4 A maximum, over-current protected

LSC22 Loudspeaker Controller
ASM-LSC22 Installation and Operation Manual
January 24, 2017 Rev: 1.00 Page 1-5
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4.2 Physical Specifications
Height 1.11” [28.2mm]
Depth (behind panel) 6.34” [161.0mm]
Depth (behind panel including connectors) 6.59” [167.4mm]
Width (behind panel) 4.84” [122.9mm]
Width (front panel) 5.74” [145.8mm]
Weight 1.2 lbs (0.54 kg)
Mounting Dzus rail (4 fasteners), 0.375” vertical spacing
with Allen key head (0.094” across the flats).
Dzus stud head has custom diameter of 0.300”.
Connectors One 25 pin male D-subminiature with V5 locks
One 9 pin male D-subminiature with V5 locks
One 3.5mm, 4 conductor jack
Material/Finish Enclosure shall be conversion coated aluminum.
Finish is clear conversion coating per MIL-DTL
Type II Class 3
Bonding ≤2.5 mΩ
1.4.3 Environmental Specifications
Temperature -40 to +70C (operating)
-55 to +85C (survival)
Altitude 35,000 feet max.
Humidity 95% Non-condensing
Operational Shock 6g for 11msec (any axis)
Crash Safety Shock 20g for 11 msec (impulse), 3 sec (sustained)
Vibration DO-160G category ‘S’curves B & M
DO-160G category ‘U2’curves F & F1
Qualification of the LSC22 Loudspeaker Controller was completed in accordance with
DO-160G Env. Cat. C4-BAB[SBM][U2FF1]XXXXXXZ[BXX]AB[ACE]XMXXXAX.
Note: Refer to Environmental Qualification Form located in Section 2 of this Manual for complete details
of the environmental categories.

LSC22 Loudspeaker Controller
ASM-LSC22 Installation and Operation Manual
January 24, 2017 Rev: 1.00 Page 1-6
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4.4 Product Approval/Certification
None
1.5 Unit Nomenclature
LSC22-001
Dzus mount Loudspeaker Controller
Blue/White Panel Lighting
LSC22-001N
Dzus mount Loudspeaker Controller
NVIS Green A Panel Lighting
End of Section 1.0