Northern Airborne Technology AMS43 Скачать руководство пользователя страница 22

AMS43 Single Channel Audio Controller Manual  

SM59 Rev. 4.00 

 

 
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.  
 
In-line PTT cordsets can be a very real source for crosstalk, if the MIC wire pair in the 
cordset is not shielded.  The source of the crosstalk is the high level Phones audio 
being coupled on to the MIC HI/LO pair in the in-line PTT cordset, because of the lack 
of shielding for this wire pair.   Once the mic line is contaminated, the undesired audio 
can be sent into the audio system as ‘mic audio’, then processed and distributed to all 
other audio controllers via the ICS Tie Line. 

2.4 Continued 

Airworthiness 

Maintenance of the AMS43 Single Channel Audio Controller is ‘on condition’ only. 
Periodic maintenance of this product is not required. 

2.5 

Accessories Required But Not Supplied 

Installation kit AA90-IKC (Alt. part No. D50S37SL-IKC) is required to complete the 
installation.  The kit consists of 1 50-Pin D-min Female Crimp Kit (D50SL-IKC) and 1 
37-Pin D-min Female Crimp Kit (D37SL-IKC). 
 

D50SL-IKC

 consists of

 

 

Quantity 

Description 

NAT Part # 

D-min 50 Socket Housing 

20-21-050 

50 

MS Crimp Socket 

20-26-901 

1* 

Jack Screw Set 

20-27-002 

1* 

Lock Clip Set 

20-27-004 

50 Pin Connector Hood 

20-29-051 

 

D37SL-IKC

 consists of

 

 

Quantity 

Description 

NAT Part # 

D-min 37 Socket Housing 

20-21-037 

37 

MS Crimp Socket 

20-26-901 

1* 

Jack Screw Set 

20-27-002 

1* 

Lock Clip Set 

20-27-004 

37 Pin Connector Hood 

20-29-038 

*  Use as required. 
 
 
 
 

Page 2-6 

 

Nov 10, 2003 

ENG-FORM: 805-0106.DOT 

Amendment  #1  

Feb 15, 2005

 

 

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

 

Содержание AMS43

Страница 1: ...43 Single Channel Audio Controller Manual 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 2...

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Страница 3: ...ON This manual has been produced to provide information unique to the AMS43 Single Channel Audio Controller Some of this information has been published previously in the SM01 Service manual AA90 AMS40...

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Страница 5: ...l 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 RECOR...

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Страница 7: ...Instructions 1 Remove Pages Replace With Pages 2 7 Rev 4 00 2 7 Rev 4 00 Amendment 2 2 Remove Drawings Section 2 Replace or add Drawings Section 2 AMS43 403 0 Rev 1 11 AMS43 403 0 Rev 1 12 AMS43 403...

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Страница 9: ...e to the Cautions section of the manual to insert the latest wiring specifications and to remove references to Solder Install Kits Amendment Instructions 1 Remove Pages Replace With Pages 2 1 and 2 2...

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Страница 11: ...ion 2 1 2 2 Unpacking and Inspection 2 1 2 2 1 Warranty 2 1 2 3 Installation Procedures 2 1 2 3 1 Warnings 2 1 2 3 2 Cautions 2 2 2 3 3 Cabling and Wiring 2 2 2 3 4 Adjustments 2 2 2 3 5 Post Installa...

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Страница 13: ...h a backlit faceplate Transceiver interfacing is accomplished through directly switched microphones To ensure maximum radio compatibility it has a ground referenced keyline that does not incorporate d...

Страница 14: ...ie input 2 5 Vrms for direct audio inputs Impedance 1 k 10 for receive inputs 1 k 10 for mic inputs 1 8 k 10 for ICS tie input 1 3 k 10 for Direct Audio1 input 100 10 for Direct Audio 2 input Circuitr...

Страница 15: ...ulation at 400 and 75 of rated load 10 distortion 3 dB max of rated output power Annunciators Green LED will light for transmit operation 1 4 2 Physical Specifications Height 1 90 inches 48 3 mm Depth...

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Страница 17: ...lete the warranty card the warranty will be activated on date of shipment from NAT Note An appropriately rated facility e g Certified Aircraft Repair Station must install this equipment in accordance...

Страница 18: ...termination to allow the hood to be easily installed Note that the hood is a clamshell hood and is installed after the wiring is complete All wiring should be at least 22 AWG except power and ground l...

Страница 19: ...Audio Alert 1 is a single tone signal and Audio Alerts 2 and 3 are two tone signals The pitch of the signals can be adjusted using the relevant TONE trimpot and the cycling rate of the two tone signal...

Страница 20: ...a transceiver may be caused by missing grounds on the radio or audio controller Plug in the hand mic and test for correct operation Wiring faults for this accessory may cause peculiar loss of ICS or...

Страница 21: ...MIC and PHONE pairs shielded MIC wires must be shielded as a minimum To ensure proper shielding the shield s should be terminated to the MIC LO connection at the airframe connector of the PTT cordset...

Страница 22: ...a the ICS Tie Line 2 4 Continued Airworthiness Maintenance of the AMS43 Single Channel Audio Controller is on condition only Periodic maintenance of this product is not required 2 5 Accessories Requir...

Страница 23: ...SCRIPTION TYPE SERIAL AMS43 403 0 1 12 Audio Controller Interconnect 2580 and up AMS43 403 1 1 12 Audio Controller Interconnect 2580 and up AMS43 403 2 1 12 Audio Controller Interconnect 2580 and up A...

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Страница 37: ...el All audio except the S T of the radio in use and the directly connected DIRECT AUDIO 2 input signal see Section 3 5 1 is muted during TX for clarity ICS operation allows TX during any ICS mode by u...

Страница 38: ...hear the radio audio as selected on the controller The passengers will not hear any radio audio when the red mode switch is in the ISO EMR position 3 3 2 Transmit Selector Switch TX Indicator Transmit...

Страница 39: ...n position Keyed ICS is inherent to the pilot and copilot microphone circuits only Passenger microphone circuits will be LIVE with this mode selected VOX Voice Activated ICS mode switch orange switch...

Страница 40: ...n of failure If ICS audio is still available then the power to the controller has not failed and loss of the TX light indicates TX switch failure In the ISO EMR mode all switches work exactly as they...

Страница 41: ...ternal 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 Bel...

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