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Northern Airborne Technology AA86 Installation And Operation Manual

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SM48
AA86/87
Stereo Intercom
INSTALLATION AND OPERATION MANUAL
REV 4.00 November 12, 2003
Northern Airborne Technology Ltd.
1925 Kirschner Road
Kelowna BC, Canada
V1Y 4N7
Telephone (250) 763-2232
Facsimile (250) 762-3374
Copyright 2003 by Northern Airborne Technology
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

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  • Page 1 INSTALLATION AND OPERATION MANUAL REV 4.00 November 12, 2003 Northern Airborne Technology Ltd. 1925 Kirschner Road Kelowna BC, Canada V1Y 4N7 Telephone (250) 763-2232 Facsimile (250) 762-3374 Copyright 2003 by Northern Airborne Technology CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
  • Page 2 AMENDMENT RECORD Amendment Amendment Section(s) Date Entered By Number Date Changed Entered Insert any Amendment Instruction sheets after this page. Nov 12, 2003 Page ii ENG-FORM: 820-0109.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 3: Table Of Contents

    On/Off, Volume and Vox controls. 3.2.2 PRIORITY Control 3.2.3 MUSIC Vol, MUSIC Mute and Isolate Controls 3.2.4 Active Microphone LEDs 3.2.5 External Controls EMERGENCY OPERATION Nov 12, 2003 Page iii ENG-FORM: 820-0109.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 4: Introduction

    CD players, line level and speaker outputs. The AA86 and AA87 allow the pilot to control the level of muting to suit the situation. The pilot can choose from a range of full muting during critical communications to none at all.

  • Page 5: Specifications

    30 seconds. (This usually indicates a stuck microphone condition.) In the event that failure occurs in the power source to the AA86 and AA87, the Fail-safe mode activates automatically, routing the pilot's headset directly to the audio panel or radio source.

  • Page 6: Introduction

    If you fail to complete the warranty card, the warranty will be activated on date of shipment from NAT. 2.2.1 Installation Kit Components. The contents of the NAT AA86/87 Installation Kit are itemised below: Quantity Description NAT Part # Faceplate, Reversible Horiz./Vert.

  • Page 7: Installation Procedures

    Intercom unit to pick up the sound of the motor as ground loop interference. ⇒ The AA86/87 Intercom should not be connected through the avionics master switch as it is generally desirable to have the intercom available at all times, even when the avionics are off.

  • Page 8: Electrical Installation

    SM48 Rev. 4.00 AA86/87 Stereo Intercom Manual 2.3.4 Electrical Installation The AA86/87 Stereo Intercoms employ a single, common ground at Pins 14 and 15. Ground returns may be tied together and connected to either ground pin. 2.3.4.1 Power The DC power source (aircraft power or battery, between +10 and +32 volts) must be connected at Pin 1.

  • Page 9: Stereo Inputs

    The pilot’s yoke-mounted or other aircraft Push-To-Talk (PTT) switch should be connected in parallel to the AA86/87 (at Pin 11) and to the aircraft comm key input (i.e. audio panel or comm radio PTT input, as appropriate). If the aircraft is equipped with a second (Co-Pilot) PTT switch, this switch should be connected directly to the AA86/87 at Pin 10.
  • Page 10 CD players. When using one of these low power, battery-operated units, it is preferable to connect the AA86/87 to the stereo's headphone outputs (rather than the 'line' output) to assure proper operation of the stereo's volume controls.
  • Page 11 10 ohm, 4.7 ohm, or as required. Stereo Inputs to monaural Headsets If the AA86/87 Intercom has not been wired for stereo headsets, only one of the two stereo channels will be heard in the user's monaural headsets (both ears, but still only one channel).

  • Page 12: Mechanical Installation

    6 and 7, and passengers (rear) on pins 2 and 3. 2.3.5.2 AA86 Models The AA86 Intercom has only one set of stereo inputs. The stereo source must be connected to the front music inputs at Pins 6 and 7. Music will be heard in all headphones, both front and rear.

  • Page 13: Post-Installation Checks

    Post-Installation Checks 2.4.1 Voltage/resistance checks Do not attach the AA86/87 until the following conditions are met. Check the following: Check P1, pin <1> for +10 to +32 Vdc relative to ground. Check P1, pins <14> and <15> for continuity to ground (less than 0.5 Ω).

  • Page 14: Installation Drawings

    Odyssey/Intrepid Stereo Intercom Mounting Diagram AA86\922-0 1.00 Odyssey/Intrepid Stereo Intercom Mech. Installation 4310086\900-0 1.10 AA86/87 Drill template Label Orthographic Section 2.0 ends after these Drawings Nov 12, 2003 Page 2-9 ENG-FORM: 805-0104.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 21: Introduction

    PTT indicator and will turn red upon Pilot PTT actuation.) The pilot's microphone and headphones are automatically routed directly to the audio panel when the AA86/87 is placed in the off position. Nov 12, 2003 Page 3-1 ENG-FORM: 806-0104.DOT...

  • Page 22: Priority Control

    Headset PRIORITY When the PRIORITY switch Headset position is selected, intercom users are given priority over the aircraft radios. The AA86/87 muting circuit lowers the radio audio and music level to allow the intra-cabin conversation to be clearly audible. However, since the radio audio is not completely muted, a 'watch' is maintained on the selected radio.

  • Page 23: Music Vol, Music Mute And Isolate Controls

    3.2.3.1 Music Volume The automatic music muting feature of the AA86/87 intercom makes it necessary to set the initial/maximum music volume when neither the radio audio nor any microphone input is active. Alternatively, the Music Mute control may be rotated to its non-muting, fully clockwise position.

  • Page 24: Active Microphone Leds

    (i.e. music or aircraft radios) and, similarly, the radio audio and Crew conversation will not mute any passenger input (i.e. music or conversation). Page 3-4 Nov 12, 2003 ENG-FORM: 806-0104.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 25: Emergency Operation

    AA86/87 Stereo Intercom Manual 3.2.5.3 Stuck Mic Detector The AA86/87 Stuck Mic Detector is automatic and therefore includes no front panel switches or controls. An audible 'beeping' will be heard in both pilot and co-pilot headsets if either pilot or co-pilot Push-To-Talk has been depressed for more than 30 seconds.

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Aa87

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