Northern Airborne Technology ACP53-001 - Manual (Page 22)

ACP53-001 DACS Audio Control Panel
SM75 Installation and Operation Manual
Section 3 Rev: 1.00 Issue 1 Page 3-1
ENG-FORM: 806-0113.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Section 3 Operation
3.1 Introduction
Information in this section consists of the functional and operational procedures for the ACP53-001 DACS
Audio Control Panel (ACP53).
The ACP53 is an Audio Control Panel for a communications management system such as the Northern
Airborne Technology Ltd Digital Audio Control System (DACS).
The faceplate of the ACP53 supports replaceable legends for the receivers and the transceivers. This
enables the installing agency to change the names of the radio controls to match the radios installed on
the aircraft.
The illumination of the ACP53 faceplate is linked to the aircraft dimming buss, and any increases or
decreases in illumination will be relative to the selected lighting mode.
The ACP53-001 has NVIS Green B faceplate backlighting and annunciators.
3.2 General Information
The ACP53 is part of a communications management system (such as the Northern Airborne Technology Ltd
DACS) that distributes and controls all the audio in an aircraft.
3.2.1 Operational Criteria
It is important to be aware that each unit may have different functions depending on how the system has
been configured during installation. Normally the pilot and copilot will be designated User 1 and User 2
respectively.
Note: Confirm the specific criteria associated with this installation with your installing agency.
3.3 Pre-Flight Checks
To confirm operation of the communications management system, the following pre-flight checks must be
completed prior to take-off:
Select NORMAL and EMERGENCY mode in turn (see section 3.4.6). For each mode, carry out the
following checks at each pilot station:
• perform a test radio transmission to verify that sidetone is audible in headphones.
• trigger systems that provide aural warnings to verify that aural warning / alert audio is audible
in the headphones.
• ICS system operation is confirmed by reception of sidetone by the pilot and communications
with other occupants (Copilot only in EMERGENCY MODE).