SM69 AA12S Series Compact Audio Controller INSTALLATION AND OPERATION MANUAL REV 4.00 October 13, 2005 Northern Airborne Technology Ltd. 1925 Kirschner Road Kelowna, BC, Canada. V1Y 4N7 Telephone (250) 763-2232 Facsimile (250) 762-3374 Copyright 2005 by Northern Airborne Technology CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
SM69 Rev. 4.00 AA12S Series 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. AMENDMENT RECORD Amendment Amendment Number Date 806-0001 Oct 14/05 Section(s) Changed 1,3 Date Entered Entered By Performed at factory Insert any Amendment Instruction sheets after this page.
INSTALL_OPS MANUAL AMENDMENT Manual: SM69 (AA12S) Document # SM69\Install_Ops\809-0001 Amendment #: 1 Amendment Date: Oct 14, 2005 The purpose of this amendment is to change the Revision of the manual to 4.00 (to reflect its status as a 2-part manual), and to correct a Direct Audio statement (removed from Section 3.3.1, added to Section 1.2.1. NB. This amendment can be performed on both Rev 1.00 OR Rev 4.00 of this manual. Amendment Instructions: Remove Pages Replace With Pages 1-1 and 1-2 Rev 1.
SM69 Rev. 4.00 AA12S Series Compact Audio Controller Manual Table of Contents Section Title 1 Description 1.1 1.2 1.2.1 1.2.2 1.3 1.3.1 1.3.2 1.3.3 1.3.4 Introduction General Information Features Installation Adjustments Specifications Electrical Specifications Physical Specifications Environmental Specifications Unit Nomenclature 2 Installation 2.1 2.2 2.2.1 2.3 2.3.1 2.3.2 2.3.3 2.3.4 2.3.5 2.3.6 2.4 2.5 2.
SM69 Rev. 4.00 AA12S Series Compact Audio Controller Manual Section 1 Description 1.1 Introduction Information in this section consists of the functional and operational procedures for the AA12S Series Compact Audio Controllers. The information in this manual is applicable to all models unless otherwise specified. 1.2 General Information The AA12S is a compact Dzus-mounted audio controller with an integral 4-place stereo voice-activated intercom.
AA12S Series Compact Audio Controller Manual 1.3 Specifications 1.3.1 Electrical Specifications Power Supply Input voltage Internal supply SM69 Rev. 4.00 11-30 Vdc operating. Linear regulator with reverse and over voltage protection. 11 Vdc Nominal Lighting Voltage 27.5 Vdc @ 200 mA max (AA12S-001) 13.5 Vdc @ 400 mA max (AA12S-004) Nom. Operating Voltages 27.5 Vdc @ 600 mA max (one input for both) 13.8 Vdc @ 600 mA max Maximum Operating 30.3 Vdc Minimum Operating 11.
SM69 Rev. 4.00 AA12S Series Compact Audio Controller Manual Bidirectional Signals ICS TIE Channel: Quantity Rated level Impedance Circuitry type 1 340 mVrms nominal (170 to 680 mVrms) 2 kOhm ±10 % unbalanced Output Signals Phones: Quantity Rated level Impedance Circuitry type 4 (Pilot, Copilot, 2 Passengers) >5.5 Vrms (>100 mW, RX, ICS and music) >0.7 Vrms (TX sidetone, adjustable) 1.5 Vrms nominal (Pilot ISO mode) >0.
AA12S Series Compact Audio Controller Manual SM69 Rev. 4.00 Audio noise -60 dB max** Output Regulation ≤3 dB variance (350 to 6000 Hz) Audio Communication Loud & Clear ICS Volume controls <35 dB range*, 40 dB nominal Music Volume controls <35 dB range*, 40 dB nominal Receive Input impedance 1 kΩ ±10 % 1.3.2 Mic Input impedance 150 Ω ±10 % Music Input impedance 11 kΩ ±10 % ICS Tie Line 2 kΩ ±10 % Physical Specifications 1.3.3 Width 4.95" (125.7 mm) max, behind panel Depth 5.80" (147.
SM69 Rev. 4.00 1.3.4 AA12S Series Compact Audio Controller Manual Unit Nomenclature Variants of the AA12S series Compact Audio Controllers are identified as follows: AA12S-001 Unassigned Options 1.3.4.1 Lighting Voltage Unassigned Options These portions of the designator may be assigned to future special options. 1.3.4.2 Lighting Voltage This portion of the designator refers to the lighting voltage of the specific model.
SM69 Rev. 4.00 AA12S Series Compact Audio Controller Manual Section 2 Installation 2.1 Introduction Information in this section consists of: unpacking and inspection procedures, installation procedures, post-installation checks, and installation drawings. 2.2 Unpacking and Inspection Unpack the equipment carefully and locate the warranty card. Inspect the unit visually for damage due to shipping and report all such claims immediately to the carrier involved.
AA12S Series Compact Audio Controller Manual 2.3.2 SM69 Rev. 4.00 Cautions In all installations, use shielded cable exactly as shown and ground as indicated. Significant ground loop and noise problems may result from not following these guidelines. The shielding and routing of the MIC and ICS TIE LINES used in the AA12S installation is very critical and poor performance of the aircraft audio system will result if these issues are not handled properly.
SM69 Rev. 4.00 2.3.5.1 AA12S Series Compact Audio Controller Manual Voltage/Resistance Checks Check the following: a) P101 pin <1> for avionics buss voltage. b) P101 pin <16> for continuity to ground. c) P101 pins <9> <10> <11> and <12> for continuity to ground when the relevant switch is closed. (Also check pins <13> and <14> if switches are installed in these positions.) d) P301 pin <5> for avionics lighting bus voltage relative to ground (with lighting on).
AA12S Series Compact Audio Controller Manual 2.3.6.2 SM69 Rev. 4.00 Right Side Adjustments RX The adjustments found on the right side of the unit BAL are: TX S/T, which controls the sidetone level; R L RX BAL R L, which controls the RX Balance; RX VOL, which controls the RX volume level; MUSIC BASS, which controls the Music Bass level; and MUSIC BAL R L, which controls the Music balance.
SM69 Rev. 4.00 2.6 AA12S Series Compact Audio Controller Manual Installation Drawings DRAWING AA12S\001\403-0 AA12S\001\405-0 AA12S\001\905-0 AA12S\001\922-0 REV. 1.10 1.10 1.10 1.10 DESCRIPTION AA12S Compact Audio Controller AA12S Compact Audio Controller AA12S Compact Audio Controller AA12S Compact Audio Controller TYPE Interconnect Connector Map Faceplate Mech. Installation SERIAL # All All All All Section 2 ends after these Drawings Oct 13, 2005 Page 2-5 ENG-FORM: 805-0106.
R L R L MUSIC MUSIC BASS BAL MUSIC MUTE RX VOL ICS BASS RX BAL L ICS BAL R TX S/T
SM69 Rev. 4.00 AA12S Series Compact Audio Controller Manual Section 3 Operation 3.1 Introduction Information in this section consists of the functional and operational procedures for the AA12S Series Compact Audio Controllers. The information in this manual is applicable to all models unless otherwise specified. 3.2 General Information The AA12S is a compact Dzus-mounted audio controller with an integral 4-place stereo voice-activated intercom.
AA12S Series Compact Audio Controller Manual 3.3 Operation Specifics 3.3.1 Radio Selection VOX/TX Annunciator 3.3.1.1 RX Select Switches SM69 Rev. 4.00 TX Select Switch Receive The AA12S is typically configured to select the RX audio from three transceivers and up to four additional receivers. The RX Select switches are white double-throw centre-off switches. Receiver audio can be selected by setting the appropriate RX select switch to the down position.
SM69 Rev. 4.00 3.3.1.3 AA12S Series Compact Audio Controller Manual VOX/TX Annunciator The VOX/TX Annunciator is a bicolour LED that indicates the intercom status. During VOX activity, the annunciator LED is illuminated red. If TX is keyed with no ICS or sidetone, the annunciator LED is illuminated green. If TX is keyed with mic or sidetone, the combination of red and green will cause the LED to appear amber.
AA12S Series Compact Audio Controller Manual 3.3.2.2 SM69 Rev. 4.00 ICS Volume Control The ICS VOL control, which has a line to mark rotational position, is at minimum volume when fully ccw. As the knob is rotated cw, the ICS volume for crew and PAX increases. The ICS is muted during transmit operations. 3.3.3 PILOT ISO / NORM Modes Pilot Isolate Switch The PILOT ISO/NORM control is a red, two-position toggle switch that allows selection of either NORM (Normal) or PILOT ISO (Pilot Isolate).
SM69 Rev. 4.00 3.3.5 AA12S Series Compact Audio Controller Manual Automatic Fail-safe In the event of a power failure, automatic fail-safe operation will be activated. This routes the pilot’s phones, mic audio, and mic PTT directly to the COM radio selected by the position of the TX rotary selector switch, and selected audio inputs. Copilot and passengers will have no ICS, music, or receive functions.
