Northern Airborne Technology RM01-001 User Manual

Installation and Operation Manual

RM01-001

Remote Memory

SM77

ISSUE 1.01

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

RM01-001 Remote Memory

SM77 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 1-2

1.4.3 Environmental Specifications 1-2

1.4.4 Product Approval 1-3

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 Post-Installation Checks 2-3

2.5 Adjustments and Connections 2-3

2.6 Accessories Required But Not Supplied 2-3

2.7 Installation Drawings 2-4

3. Operation

3.1 Introduction 3-1

3.2 General Information 3-1

Installation and Operation Manual Page iii

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

RM01-001 Remote Memory

SM77 Installation and Operation Manual

Section 1 Description

1.1 Introduction

Information in this section consists of product description, design features and specifications for the
RM01-001 Remote Memory (RM01). The RM01 has been developed for use in the Northern Airborne
Technology Ltd (NAT) Digital Audio Communication System (DACS) but can be used in other applications
as appropriate. 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 RM01 is a Remote Memory unit for the Northern Airborne Technology Ltd. (NAT) 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 RM01 is a remote mounted device that connects to the DACS AMU50 Audio Management Unit. The
RM01 stores the system’s configuration and aural alert files. Storing the system configuration and alert
files in this unit enables the replacement of the AMU50 without the need of downloading a new
configuration file.

The RM01 communicates with the AMU50 over a Serial Peripheral Interface (SPI) port. The RM01 also
receives regulated power from the AMU50.

1.3 Design Features

The RM01 provides digital memory accessible via a serial communications port to service an externally
attached device such as an Audio Management Unit. A Typical application of the RM01 would be to store
system configuration data or digital audio data.

The RM01 provides 64 Mbits of data storage capacity, which supports at least 120 seconds of 16 bit
digital audio data (32 kHz sampled).

Section 1 Rev: 1.01 Issue 1 Page 1-1

ENG-FORM: 800-0115.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

RM01-001 Remote Memory

SM77 Installation and Operation Manual

1.4 Specifications

1.4.1 Electrical Specifications

Input Signals

Input Operating Voltage

The RM01 requires a conditioned +5 Vdc power supply such as that provided by an
AMU50.

Nominal Operating Input Voltage 5.0 Vdc
Maximum Current: 0.1 A @ 5.0 Vdc

Communication

The RM01 communicates over a Serial Peripheral Interface (SPI) with an external device
such as an AMU50.

1.4.2 Physical Specifications

Height 18.4 mm (0.73 in) maximum
Depth 51.4 mm (2.03 in) maximum
Width 57.2 mm (2.25 in) maximum
Weight 0.04 kg (0.09 lbs) maximum
Material and Finish Brushed aluminium, conversion coated
Connectors One 9 pin D-sub (male), Jackpost locking hardware
Installation SPI Cable: 0.3 m (11.81 in) maximum

Installation Kit: RM01-IKC
Mounting Bulkhead Mount (four 6-32 screws)

1.4.3 Environmental Specifications

The RM01 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 maximum
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: 1.01 Issue 1 Page 1-2

ENG-FORM: 800-0115.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

SM77 Installation and Operation Manual

1.4.4 Product Approval

RM01-001 Remote Memory

1.4.4.1 FAA: TSO-C139

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.

1.4.4.2 EASA: ETSO-C50c

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

EASA: ETSO-C50c (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: 1.01 Issue 1 Page 1-3

ENG-FORM: 800-0115.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.