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Jupiter Avionics JA44-001 Installation And Operating Manual

High impedance headset to low impedance intercom adapter
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JA44-001
High Impedance Headset to
Low Impedance Intercom Adapter
Installation and Operating Manual
Rev A
Jupiter Avionics Corporation
1959 Kirschner Road
Kelowna BC
Canada V1Y 4N7
Tel: +1 778 478 2232
Toll-Free: 1 855 478 2232
www.jupiteravionics.com
Rev B
Page i

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Summary of Contents for Jupiter Avionics JA44-001

  • Page 1 JA44-001 High Impedance Headset to Low Impedance Intercom Adapter Installation and Operating Manual Rev A Jupiter Avionics Corporation 1959 Kirschner Road Kelowna BC Canada V1Y 4N7 Tel: +1 778 478 2232 Toll-Free: 1 855 478 2232 www.jupiteravionics.com Rev B Page i...
  • Page 2 All rights reserved Jupiter Avionics Corporation (JAC) permits a single copy of this manual to be printed or downloaded for the express use of an installing agency. Any such electronic or printed copy of this manual must contain the complete text of this copyright notice.

  • Page 3: Table Of Contents

    JA44-001 High Impedance Headset to Low Impedance Intercom Adapter Installation and Operating Manual Table of Contents SECTION 1 - DESCRIPTION ..............................1 System Overview ..............................1 Features Overview ..............................1 Inputs and Outputs ..............................1 1.3.1 Inputs ................................1 1.3.2 Outputs ................................

  • Page 4: Section 1 - Description

    The JA44-001 plugs in-line between the User's headset cord and the aircraft intercom system headset connector. The JA44-001 supports a single control to adjust microphone level to intercom system. The JA44-001 supports automatic on / off power function when user plugs / unplugs the headset from the unit. Inputs and Outputs 1.3.1...

  • Page 5: Mechanical Specifications

    JA44-001 High Impedance Headset to Low Impedance Intercom Adapter Installation and Operating Manual 1.4.1.1 Audio Performance Rated Input Level MIC INPUT rated level 0.25 Vrms ±10% PHONE INPUT rated level 0.9 Vrms ±10% Rated Output Level MIC OUTPUT rated level 250 uVrms±10%...

  • Page 6: Section 2 - Installation

    2.4.3 Mechanical Installation The JA44-001 can be mounted in any attitude and location sufficient clearance for the connector body and headset plug. It requires no direct cooling. CAUTION: When plugged in to a headset audio connector, the JA44-001 could create excessive strain on the connector.

  • Page 7: Post Installation Checks

    2.5.1 Microphone Operation The JA44-001 allows the MIC INPUT audio to be biased and decreases the audio level from the MIC INPUT to MIC OUTPUT connectors by using a Step-down transformer. The MIC OUTPUT audio output is adjusted though a trimpot.

  • Page 8: Section 3 - Operation

    This section contains the operating instructions for the JA44-001. Controls and Connectors The JA44-001 has an automatic on / off power function when the user plugs / unplugs the headset from the unit. U-92A/U jack (J2) to interface with a High Impedance Headset...

  • Page 9: Battery Information

    JA44-001 High Impedance Headset to Low Impedance Intercom Adapter Installation and Operating Manual Battery Information The JA44-001 uses one nine volt alkaline battery. 3.3.1 Inserting or Replacing the Battery Retaining tabs To replace the battery, remove the battery cover by pressing the battery lid...

  • Page 10: Appendix A - Installation Drawings

    JA44-001 High Impedance Headset to Low Impedance Intercom Adapter Installation and Operating Manual Appendix A - Installation Drawings Introduction The drawings necessary for installation and troubleshooting of the JA44-001 High Impedance Headset to Low Impedance Intercom Adapter are in this Appendix, as listed below. Installation Drawings DOCUMENT...
  • Page 11 CHECKED TITLE High Impedance Headset to Low Impedance Intercom Adapter 10-24-18 APPROVED NCAGE CODE PART NO. SHEET L00N3 JA44-001 DOC NO. CONFIDENTIAL & PROPRIETARY TO JUPITER AVIONICS CORP. JA44-001 Interconnect Rev A.dwg JUPITER AVIONICS TEMPLATE AUTOCAD PORTRAIT SIZEA REV B.DWT...
  • Page 12 0.5 DEG Intercom Adapter 10-24-18 NCAGE CODE PART NO. SHEET APPROVED L00N3 JA44-001 CONFIDENTIAL & PROPRIETARY DOC. NO. MATERIAL: TO JUPITER AVIONICS CORP. JA44-001 Mechanical installation Rev A.SLDDRW FINISH: DRAWING NOT TO SCALE JUPITER AVIONICS TEMPLATE SOLIDWORKS PORTRAIT SIZEB REV B.DRWDOT...

  • Page 13: Appendix B - Installation Documents

    JA44-001 High Impedance Headset to Low Impedance Intercom Adapter Installation and Operating Manual Appendix B - Installation Documents Rev A Page B1...

  • Page 14: B1 Airworthiness Approval

    The JA44-001 Installation Manual provides detailed installation instructions and wiring diagrams (Section 2, and Appendices A and B). Power is supplied to the JA44-001 through an existing [ ]-Amp circuit breaker that was previously used by the original audio panel. The net electrical load is unchanged.
  • Page 15 Refer to the JA44-001 Maintenance Manual. 7. Removal and Replacement Information Refer to Section 2 of this manual - the JA44-001 Installation and Operating Manual. If the unit is removed and reinstalled, a functional check of the equipment should be conducted.

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