Anodyne Electronics Manufacturing AA83-001 Especificaciones descargar pdf (Pagina 22)

AA83-001 InterMUSIC™ Stereo Intercom System

SM09-2 Installation and Operation Manual

April 17, 2012 Rev: 5.00 Page 3-4

ENG-FORM: 806-0100.DOTX

CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.

3.3.5.3 Tie/Split Operation

The MODE switch has one further position, which can be used in expanded systems for more complex

audio circuits. If an outboard AA82 has been installed (or some other AEM system with tie line

capability), then this switch will open and close the tie line output to create common or split intercom

circuits with the external system.

In all positions other than SPLIT, the ICS tie line is sent to outside systems for common intercom

operation. This can be used for common communication from front to rear (for example) in a larger

aircraft. When set to the SPLIT position, the AA83-001 cuts the tie line, breaking the two units into

individual intercom circuits with isolated conversations. In this way, many different circuit combinations

can be set up, depending on what device is hooked to the tie line.

With no external unit, the SPLIT position has no function within the AA83-001.

3.3.6 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. Copilot and passengers will have no ICS,

music, or receive functions.

The pilot mic is directly connected to the transceiver mic. Mic bias is provided by the transceiver, not the

AA83-001. The pilot TX keyline is directly connected to the transceiver.

During receive mode, receive audio is directly connected from the audio source to the pilot phones, and

during transmit mode, the sidetone audio is directly connected from the audio source to the pilot phones.

In both cases, copilot and passengers have no ICS, music, sidetone, or receive functions.

In the unlikely event of an AA83-001 circuit failure that results in a communication problem, the automatic

fail-safe mode can be enabled by pulling the AA83-001 circuit breaker.

Note: In Automatic Fail-Safe mode, the receive/sidetone levels may require adjustment at the audio

source.

The pilot should confirm that all aspects of Automatic Fail-Safe operation are working before

accepting the aircraft into service.

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