Northern Airborne Technology ACP51-100 User Manual

Installation and Operation Manual

ACP51-100

DACS Audio Control Panel

ICSRX

ICSRX

ICSRX

PPP
A

A

A
TTT

NORM

NORM

NORM

ISOISO

ISO

MIN

MIN

MIN

VOX

VOX

VOX

ICS

ICS

ICS

ISO

ISO

TX

TX

PTTPRESET

PTTPRESET

PTTPRESET

ICS

ICS

ICS

TX

ISO

CALL

CALL

CALL

SM81

ISSUE 1.00

Northern Airborne Technology Ltd.

1925 Kirschner Road

Kelowna, BC, Canada.

V1Y 4N7

Telephone [phone]

Facsimile [phone]

Issued on the authority of Northern Airborne Technology Ltd.

Copyright 2009

ACP51-100 DACS Audio Control Panel

SM81 Installation and Operation Manual

Table of Contents

Section Title Page

1. Description

1.1 Introduction 1-1

1.2 Product Description 1-1

1.3 Design Features 1-1

1.4 Specifications 1-2

1.4.1 Electrical Specifications 1-2

1.4.2 Physical Specifications 1-3

1.4.3 Environmental Specifications 1-3

1.4.4 Product Approval 1-4

2. Installation

2.1 Introduction 2-1

2.2 Unpacking and Inspection 2-1

2.2.1 Warranty 2-1

2.3 Continued Airworthiness 2-1

2.4 Installation Procedures 2-1

2.4.1 Warnings 2-1

2.4.2 Cautions 2-2

2.4.3 Cabling and Wiring 2-2

2.4.4 Mounting 2-2

2.4.5 Legend Installation 2-3

2.4.6 Custom Designation Cross-Reference List 2-3

2.4.7 Post Installation Checks 2-3

2.5 Adjustments 2-4

2.6 Accessories Required But Not Supplied 2-4

2.6.1 Installation Kit 2-4

2.6.2 Legend Installation Kit 2-4

2.7 Installation Drawings 2-5

3. Operation

3.1 Introduction 3-1

3.2 General Information 3-1

3.2.1 Operational Criteria 3-1

3.3 Controls and Indicators 3-1

3.3.1 Built-In Tests (BITs) 3-1

3.3.2 Faceplate Illumination 3-2

3.3.3 Transceiver Radio Controls 3-2

3.3.4 Transmit Active Indicator 3-3

3.3.5 Patient Mode Control 3-3

3.3.6 VOX Threshold 3-3

3.3.7 Transmit Selector Switch 3-4

3.3.8 TX/ICS PTT Switch 3-4

3.3.9 RX/ICS Volume Control 3-4

3.3.10 ISO/CALL Button 3-4

Installation and Operation Manual Page iii

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

ACP51-100 DACS Audio Control Panel

SM81 Installation and Operation Manual

Section Title Page

3.3.11 ISO Indicator 3-5

3.3.12 CALL Indicator 3-5

3.3.13 Transmit Features 3-6

3.3.14 Back-up and Emergency Modes 3-6

Installation and Operation Manual Page iv

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

ACP51-100 DACS Audio Control Panel

SM81 Installation and Operation Manual

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.

Section 1 Rev: 1.00 Issue 1 Page 1-1

ENG-FORM: 800-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

ACP51-100 DACS Audio Control Panel

SM81 Installation and Operation Manual

1.4 Specifications

1.4.1 Electrical Specifications

Input Signals

Input Power

The ACP51-100 requires a conditioned Input Voltage supplied by an external
communications management unit such as the AMU50:

Nominal: 25.5 Vdc

Maximum Current: 0.25 A @ 25.5 Vdc

Night Mode Input

Activation of the Night Mode input places the ACP51 integral lighting into Night Mode. In
this state the lighting is dimmed to be suitable for viewing at night. The ACP51 remains in
Night Mode for at least 50 ms after the Night Mode input is deactivated.

Quantity: one
Logic: active LO, switched ground with no external pull up
Input Active: ≤3 Vdc
Current Draw: ≤100 mA
Input Protection: diode protected to +45 Vdc maximum

NVG Mode Input

Activation of the NVG Mode input places the ACP51 integral lighting into NVG Mode. In
this state the lighting is dimmed to be suitable for NVG viewing. The ACP51 remains in
NVG Mode for at least 50 ms after the NVG Mode input is deactivated.

Quantity: one
Logic: active LO, switched ground with no external pull up
Input Active: ≤3 Vdc
Current Draw: ≤100 mA
Input Protection: diode protected to +45 Vdc maximum

Lights

Quantity two mutually exclusive panel lighting power inputs
Standard Panel Lights: 27.5 Vdc
Maximum Current: 0.10 A @ 27.5 Vdc
Optional Panel Lights: 5 Vdc
Maximum Current: 0.10 A @ 5 Vdc

RX Mute Input

While the RX (Receive) Mute Input is active, the ACP51 sets the Transc eiver Vol umes,

except for the Transceiver selected by the Transmit Select switch, to their minimum value.
Quantity: one
Logic: active LO, switched ground, no external pull up
Input Active: ≤3 Vdc
Current Draw: ≤100 mA
Input Protection: diode protected to +45 Vdc maximum

Section 1 Rev: 1.00 Issue 1 Page 1-2

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

Output Signals

ACP51-100 DACS Audio Control Panel

SM81 Installation and Operation Manual

ISO Mode

When the Patient switch on the front panel of the ACP51 is placed in the NORM position,
the ISO Mode output is inactive. When the Patient switch on the front panel of the ACP51
is placed in the ISO position, the ISO Mode output is active (grounded).

Quantity: one
Logic: active LO, switched ground

Output Inactive: >10 MΩ

Output Active: ≤2 Ω

Current: 100 mA maximum

Bidirectional Signals

Communication

The ACP51 communicates with an external communications management system such as
the AMU50 via one bi-directional RS422 serial data port.

1.4.2 Physical Specifications

Height 57.15 mm (2.25 in) maximum

Depth 68.07 mm (2.68 in) maximum behind Dzus rail

Width 146.05 mm (5.75 in) maximum

Weight 0.51 kg (1.12 lbs) maximum

Material and Finish Brushed aluminum, conversion coated

Connectors One 15 pin D-Sub (male), V5 locking hardware

Installation RS-422 Cable: 20.0 m (785.9 in) maximum
Installation Kit: ACP50-IKC

Mounting Four Dzus fasteners, 2.89 cm (1.137 in) vertical spacing

1.4.3 Environmental Specifications

The ACP51-100 has been tested to the environmental conditions listed below. Environmental categories
for which TSO compliance has been demonstrated are listed on the Environmental Qualification Form in
Section 2 of this manual.

Temperature -40 to +70° C (operating)

-45 and +85° C (short-time operating)

-55 to +85° C (ground survival)

Altitude 50,000 feet max

Humidity 95% non-condensing

Shock Operational shock; 6 g for 11 ms
Crash safety (impulse); 20 g for 11 ms
Crash safety (sustained); 20 g for 3 s

Vibration RTCA/DO-160E Section 8 Categories (SBM) (U2FF1)

Section 1 Rev: 1.00 Issue 1 Page 1-3

ENG-FORM: 800-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

ACP51-100 DACS Audio Control Panel

SM81 Installation and Operation Manual

1.4.4 Product Approval

When installed as part of the Northern Airborne Technology Ltd DACS:

FAA: TSO C139 (RTCA/DO-214 Class Ib, RTCA/DO-160E, RTCA/DO-178B Level C)

Refer to SM76 AMU50-001 Audio Management Unit Installation and Operation manual for further
installation compliance details.

Section 1 ends

Section 1 Rev: 1.00 Issue 1 Page 1-4

ENG-FORM: 800-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

ACP51-100 DACS Audio Control Panel

SM81 Installation and Operation Manual

Section 2 Installation

2.1 Introduction

Information in this section consists of unpacking and inspection procedures, installation procedure s, po st­installation checks and installation drawings for the ACP51-100 DACS Audio Control Panel (ACP51).

Review all notes, warnings and cautions.

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. Check that all items listed below
are present before proceeding and report any shortage immediately to your supplier:

- Warranty Card

- Operators Manual

- Certificate of Conformity or Release Certification

2.2.1 Warranty

All Northern Airborne Technology Ltd. products are warranted for 2 years from date of installation by an
authorized dealer, to be free of defects in workmanship or performance. This warranty covers all materials
and labour, but is exclusive of any transport to deliver the defective unit to and from Northern Airborne
Technology Ltd or its designated warranty repair center, or any labour to remove or re-install the defective
unit in the aircraft. Contact Northern Airborne Technology Ltd. for any questions regarding this warranty,
its applicability to your units and/or for return authorization. Northern Airborne Technology Ltd. is the final
arbitrator concerning warranty administration. Units which have been physically damaged, burned,
immersed in water or otherwise abused beyond the scope of normal use will not be considered for
warranty. WARRANTY IS VOID UNLESS THE PRODUCT IS INSTALLED BY AN AUTHORIZED
NORTHERN AIRBORNE TECHNOLOGY LTD DEALER. Product for which a warranty card is not
returned shall be warranted from date of manufacture.

2.3 Continued Airworthiness

Maintenance of the ACP51 is ‘on condition’ only. Periodic maintenance of this product is not required.

2.4 Installation Procedures

2.4.1 Warnings

WARNING:

High volume settings can cause hearing damage.

Set the headset volume control to the minimum volume setting prior to

conducting tests, and slowly increase the headset volume to a

comfortable listening level.

Section 2 Rev: 1.00 Issue 1 Page 2-1

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.