Northern Airborne Technology ACP51-100 - Manual (Page 5)

ACP51-100 DACS Audio Control Panel
SM81 Installation and Operation Manual
Section 1 Rev: 1.00
Issue 1 Page 1-1
ENG-FORM: 800-0114.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Section 1 Description
1.1 Introduction
Information in this section consists of product description, design features and specifications for the
ACP51-100 DACS Audio Control Panel (ACP51). All derivative product information shall be contained in
the applicable manual supplement, which may be obtained from Northern Airborne Technology Ltd as
required.
Review all notes, warnings and cautions.
Note
: This manual contains information applicable to units s/n 3000 and above. For information
applicable to units below s/n 3000 contact the product support department at Northern Airborne
Technology Ltd.
1.2 Product Description
The ACP51 is an Audio Control Panel from the Northern Airborne Technology Ltd. Digital Audio
Communication System (DACS).
The DACS is a communications management system that distributes and controls all of the audio in an
aircraft. It manages the audio from all transceivers, receivers and audio warning sources. It enables the
transmission of microphone audio to a selected transmitter and distributes all Inter-Communication
System (ICS) audio.
The ACP51 is a Dzus mounted unit that allows the operator to adjust the volume, select a transceiver and
select the patient mode. The audio control panel is a ‘terminal’ that monitors user switch selections and
level adjustments, passing them along to the Audio Management Unit (AMU50). It also has several
status indicators that illuminate when commanded to do so by the AMU. The ACP51 communicates with
the AMU50 over a serial data port. All audio connections are made to the Audio Management Unit where
the audio processing is completed.
The Audio Management Unit is capable of supporting six Audio Control Panels. The system architecture
is set up in a star configuration to prevent loss of the entire system due to the failure of one connection.
The Audio Control Panel receives its power from the Audio Management Unit. Receiving power from the
AMU along with the serial data wiring decreases the complexity of the wiring in the aircraft and reduces
the number of breakers required for the audio system.
The ACP51 operates with ACP53-001 software loaded into the microcontroller flash memory.
1.3 Design Features
The faceplate of the ACP51 incorporates replaceable legends for the transceivers. This enables the
installing agency to change the names of the radios on individual units.
The ACP51-100 has NVIS Green A faceplate backlighting and NVIS Green B annunciators.