Summary of Contents for Northern Airborne Technology AA86
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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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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.
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.
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.
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.
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.
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.
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.
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.
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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.
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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).
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.
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).
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...
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.
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.
(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.
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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