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Nat AA12 Installation And Operation Manual

Compact audio controller
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SM21
AA12
Compact Audio Controller
INSTALLATION AND OPERATION MANUAL
REV 4.10 September 9, 2004
Northern Airborne Technology Ltd.
1925 Kirschner Road
Kelowna BC, Canada.
V1Y 4N7
Telephone (250) 763-2232
Facsimile (250) 762-3374
Copyright 2004 by Northern Airborne Technology
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

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  • Page 1 SM21 AA12 Compact Audio Controller INSTALLATION AND OPERATION MANUAL REV 4.10 September 9, 2004 Northern Airborne Technology Ltd. 1925 Kirschner Road Kelowna BC, Canada. V1Y 4N7 Telephone (250) 763-2232 Facsimile (250) 762-3374 Copyright 2004 by Northern Airborne Technology CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
  • Page 3 SM21 Rev.4.10 Compact Audio Controller 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.

  • Page 5: Table Of Contents

    Post-Installation Checks 2.3.7 Adjustments Continued Airworthiness Accessories Required But Not Supplied Installation Drawings Operation Introduction General Radio Selection 3.3.1 Receive Audio – AA12-001 3.3.2 Receive Audio – AA12-002/AA12T-002 3.3.3 Transmit Selection Intercom Entertainment Audio Pilot Isolate/Emergency Operation 3.6.1 Pilot Isolate 3.6.2...

  • Page 7: Introduction

    The AA12 is intended for use in situations where radio selection, audio performance and size are all critical elements. The audio characteristics of the AA12 are derived directly from the AA80 family, and the AA12 delivers the same reliable performance. The compact ‘radio select’ functions provide all the necessary capability for most general aviation and light commercial operations, with up to four transceivers and four receivers (depending on model).

  • Page 8: Specifications

    AA12 Compact Audio Controller Manual SM21 Rev. 4.10 The AA12 features NAT's ICS TIE LINE, allowing it to be connected to any other NAT audio product with the same feature, and a MUSIC input, with the music muted by TX, RX or ICS activity.

  • Page 9: Physical Specifications

    Width: 5.8” (146.1 mm) in front of panel 4.9” (124.5 mm) behind panel Weight: 1.0 lb (450 g) Mounting: AA12 - Panel mount, Dzus fasteners (4) AA12T - Tray Mount 1.4.3 Environmental Specifications -40 °C to +70 °C Operating Temperature: -55 °C to +85 °C...

  • Page 10: Unit Nomenclature

    AA12 Compact Audio Controller Manual SM21 Rev. 4.10 Unit Nomenclature The models covered by this manual are the base units from which all other models are derived. For details of other available models, please contact NAT. Model Description AA12-001 COM1, COM2, COM3 Transceivers + PA...

  • Page 11: Introduction

    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 is effective from the 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.

  • Page 12: Cautions

    In all installations, use shielded cable exactly as shown and ground as indicated. Significant problems could result from not following these guidelines. Shield and route the microphone (MIC) and ICS tie lines used in the AA12 installation appropriately. Not doing this can result in poor performance of the aircraft audio system.

  • Page 13: Mechanical Mounting

    2.3.5 Mechanical Mounting For the standard AA12 units, mounting is accomplished in a standard Dzus rack or rail assembly with a clearance opening of 5 inches, a full width dimension of 5.75 inches, and a total of 1.125 inches of rail height. Verify that adequate rear cable clearance is left when planning console installations.

  • Page 14: Adjustments

    Regulatory Agency paperwork before releasing the aircraft for service. Continued Airworthiness Maintenance of the AA12 is ‘on condition’ only. Periodic maintenance of this product is not required. Accessories Required But Not Supplied Installation kit p/n D25P25SL-IKC is required to complete the installation.

  • Page 15: Installation Drawings

    SM21 Rev. 4.10 AA12 Compact Audio Controller Manual D25PL-IKC Quantity Description NAT Part # D-min 25 Pin Housing 20-11-025 MS Crimp Pin 20-26-891 Jack Screw Set 20-27-002 Lock Clip Set 20-27-004 25 Pin Connector Hood 20-29-026 * Use as required.
  • Page 23 Confidential and Proprietary to NAT...
  • Page 31 Confidential and Proprietary to NAT...

  • Page 37: Introduction

    Section 3 Operation Introduction Information in this section consists of the functional and operational procedures for the AA12 Compact Audio Controller, and is applicable to the AA12-001, the AA12-002 and the AA12T-002 unless otherwise noted. General The AA12 is a compact audio controller that provides full boom microphone (MIC) support and high performance audio for up to six crew positions with VOX, LIVE and KEYED ICS capability.

  • Page 38: Receive Audio - Aa12-002/Aa12T-002

    The rotary TX select switch provides radio selection for up to three transceivers (1, 2, 3) and a PA. The AA12 is activated for TX operation by selecting the desired transceiver on the rotary TX select switch and pressing the external TX PTT switch. This connects the active MIC to the selected transceiver.

  • Page 39: Intercom

    When the VOX Squelch control is adjusted to any position other than fully ccw or fully cw the AA12 is in VOX ICS mode. The annunciator can be used as a guide to properly set the VOX Squelch. To set the VOX Squelch, from the ccw position of the VOX Squelch control, slowly advance the control in a cw direction until the annunciator turns off.

  • Page 40: Pilot Isolate/Emergency Operation

    3.6.2 Emergency operation If the AA12 loses power for any reason, it changes to the Power Fail mode and the pilot is connected directly to the radios for EMERGENCY operation. The external TX PTT switch still functions in this mode. This mode is similar to the PILOT ISO mode except that all copilot and passenger functions are lost since they depend on external power.

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