Northern Airborne Technology AMS43 Installation And Operation Manual
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Northern Airborne Technology AMS43 Installation And Operation Manual

Single channel audio controller
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INSTALLATION AND OPERATION MANUAL
Northern Airborne Technology Ltd.
Copyright 2003 by Northern Airborne Technology
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
AMS43
Single Channel Audio Controller
Manual
REV 4.00
November 10, 2003
1925 Kirschner Road
Kelowna BC, Canada
V1Y 4N7
Telephone (250) 763-2232
Facsimile (250) 762-3374
SM59

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Summary of Contents for Northern Airborne Technology AMS43

  • Page 1 INSTALLATION AND OPERATION MANUAL REV 4.00 November 10, 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 3 SM01 Service manual (AA90/AMS40 Series Audio Controllers). Earlier versions of the AMS43 may not be covered by the information in this manual. Please refer to SM01, or contact the Technical Support Department at NAT Ltd.
  • Page 5 Date Entered By Number Date Changed Entered Feb 15/05 Performed at factory Oct 24/05 Performed at factory Insert any Amendment Instruction sheets after this page. Nov 10, 2003 Page iii ENG-FORM: 820-0109.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
  • Page 7 Update the Amendment Record sheet at the front of the manual. Insert this page into the manual after the Amendment Record sheet (page ii). Manual Amendment ends after the following amended pages Amendment # 2 Oct 24, 2005 Page 1 ENG-FORM: 809-0109.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
  • Page 9 Update the Amendment Record sheet at the front of the manual. Insert this page into the manual after the Amendment Record sheet (page ii). Manual Amendment ends after the following amended pages Amendment # 1 Feb 15, 2005 Page 1 ENG-FORM: 809-0109.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 11: Table Of Contents

    Controls and Indicators 3.3.1 Receive Audio Select Switches 3.3.2 Transmit Selector Switch 3.3.3 ICS Functions Emergency Operation Audio Alerting Functions 3.5.1 Direct Audio 3.5.2 Internal Alerting Nov 10, 2003 Page iv ENG-FORM: 820-0109.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 13: Introduction

    Information in this section consists of purpose of equipment, features and specifications. Purpose of Equipment The AMS43 provides control for all aircraft audio, allowing selection of transmit (TX) and receive (RX) audio, LIVE, KEYED, or voice activated (VOX) intercom, interface for an additional hand-held transmit microphone (hand mic), and pilot isolation/emergency (ISO/EMR) operation.

  • Page 14: Specifications

    0.1 mW (-10 dBm) 0.25 Vrms into 600 Ω Direct Audio 2 90 mVrms ±10% into 600 Ω Alert 65 Ω Max Impedance Circuitry Type Single-ended, except for phones, which are balanced. Page 1-2 Nov 10, 2003 ENG-FORM: 800-0107.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 15: Physical Specifications

    -20 °C to +55 °C Operating Temperatures -55 °C to +85 °C Survival Temperatures Vibration/Shock DO-160C Cat. N Humidity Altitude 25,000 ft. Max End of section 1.0 Nov 10, 2003 Page 1-3 ENG-FORM: 800-0107.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 17: Introduction

    Do not position this unit next to any device with a strong alternating magnetic field such as an inverter, motor or blower, or significant audio interference will result. Nov 10, 2003 Page 2-1 Amendment #1 Feb 15, 2005 ENG-FORM: 805-0106.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 18: Cautions

    The ALERT LEVEL trimpot is used to adjust the levels for the three internally generated Alert signals. Other parameters relating to these signals are adjusted from the right side panel (see section 2.3.4.2.) Page 2-2 Nov 10, 2003 Amendment #1 Feb 15, 2005 ENG-FORM: 805-0106.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 19: Post-Installation Checks

    2.3.5.1 Voltage/Resistance Checks Do not attach the AMS43 until the following conditions are met. Check the following: P101 pins <16> and <17> for +28 Vdc relative to ground.

  • Page 20: In-Line Ptt Cordsets

    Adjustment of the individual radio receive (RX) levels should be set first with the AMS43 in PILOT ISO/EMR (Pilot isolate/emergency) mode, then adjust the AMS43 front panel RX master volume control level in NORMAL mode.
  • Page 21 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 AMS43, NAT recommend 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 TX functions.

  • Page 22: Continued Airworthiness

    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 AMS43 is floating, which will lead to incorrect keying of the intercom and radio systems if this type of cordset is used.

  • Page 23: Installation Drawings

    Single Channel Audio Controller Faceplate 2580 and up AMS43\922-0 1.01 Audio Controller Mech. Installation 2580 and up Section 2.0 ends after these Drawings Nov 10, 2003 Page 2-7 Amendment #2 Oct 24, 2005 ENG-FORM: 805-0106.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 37: Introduction

    AMS43 Single Channel Audio Controller. General The AMS43 provides control for all aircraft audio, allowing selection of transmit (TX) and receive (RX) audio, LIVE, KEYED, or voice activated (VOX) intercom, interface for an additional hand held transmit microphone (hand mic), and pilot isolation/emergency (PILOT ISO/EMR) operation.

  • Page 38: Transmit Selector Switch

    The front panel TX indicator will illuminate green when either the pilot or co-pilot transmits. It will not light when the hand mic is used. Page 3-2 Nov 10, 2003 ENG-FORM: 806-0106.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 39: Ics Functions

    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. Nov 10, 2003 Page 3-3 ENG-FORM: 806-0106.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

  • Page 40: Emergency Operation

    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 two Direct Audio inputs on the AMS43. Direct Audio 1 is amplified/adjustable and Direct Audio 2 is connected directly to the pilot's headset output.

  • Page 41: Internal Alerting

    Internal Alerting is provided by three separate, internal tone generators that are coupled to the headset output. These tones are a function of the AMS43 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.

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