Northern Airborne Technology 802 User Manual

Installation and Operation Manual

802-009 Switch Panel

SM802

ISSUE 4.11

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 2005

802-009 Switch Panel

SM802 Installation and Operation Manual

IMPORTANT INFORMATION

Northern Airborne Technology Ltd. has acquired the assets of dB Systems

Inc. and has revised and reissued this manual in standard NAT format.

Northern Airborne Technology Ltd. will be responsible for all future

amendments and revisions.

Installation and Operation Manual Page ii

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

802-009 Switch Panel

SM802 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 1-3

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 Mechanical Mounting 2-3

2.4.5 Installation Notes 2-3

2.4.6 Post-Installation Checks 2-5

2.5 Adjustments and Connections 2-5

2.5.1 Adjustments 2-5

2.5.2 Electrical Connections 2-6

2.5.3 Numerical Pin Identification List 2-6

2.6 Installation Drawings 2-7

3. Operation

3.1 Introduction 3-1

3.2 General Information 3-1

3.3 Controls and Indicators 3-2

3.3.1 Master Volume, Transceiver and Receiver Controls 3-2

3.3.2 MIC SELECT Switch 3-3

3.3.3 BOTH/VOICE/IDENT Switch 3-3

3.3.4 NORM MIC/OXY MIC Switch 3-3

3.3.5 HI/LO MKR Sensitivity Switch 3-3

3.3.6 Transmission Functions 3-3

Installation and Operation Manual Page iv

ENG-FORM: 820-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

802-009 Switch Panel

SM802 Installation and Operation Manual

Section 1 Description

1.1 Introduction

Information in this section consists of product description, design features and specifications for the
802-009 Switch Panel. All derivative product information shall be contained in the applicable manual
supplement, which may be obtained from NAT as required.

Review all notes, warnings and cautions.

1.2 Product Description

The 802-009 Switch Panel is designed to control a single Model 700-xxx Digital Audio Control Amplifier. It
also provides microphone audio switching and keying operations for four radio transmitters in addition to
features such as antenna switching unit control, marker (MKR) receiver sensitivity control and public
address (PA) amplifier control. The 802-009 Switch Panel continuously reads the status of its own audio
control switches and volume control potentiometers and compiles this information into the form of a digital
signal. The digital signal is sent to the Model 700 from the switch panel in RS422 serial format via a
twisted, shielded wire pair. The Model 700 receives, demultiplexes and converts this digital signal into
audio control information.

1.3 Design Features

The 802-009 Switch Panel is capable of digitally controlling all Model 700 amplifier functions. These
include the 12 receiver input switches and individual volume controls, the four sidetone input switches
and sidetone volume control, three microphone inputs, the microphone input switch, antenna switching,
the interphone switches and volume control, the cockpit speaker switch and volume control, the
headphone volume control and the NAV/ADF Voice/Ident filter switching functions.

The 802 Switch Panel is a customizable unit capable of providing control for up to four transceivers, eight
receivers and a public address. For information on other configurations, contact the Product Support
Department at NAT Ltd.

Panel nomenclature and knob illumination is provided on the 802-009 Switch Panel. The power supply
inputs for the panel overlay and knob internal light plate are independent of each other and may be lit at
different levels of brightness. The MIC SELECT knob and the NORM MIC/OXY MIC knob are lit with the
panel overlay. Neoprene washers are installed around each of the volume control knobs between the
overlay and front panel sheet metal to prevent light leakage from being radiated by the knob illuminating
light plate into the cockpit. The PHONE and PASS knobs are always in the OUT and lighted position,
since there is no switching associated with them.

Section 1 Rev: 1.00 Issue 4 Page 1-1

ENG-FORM: 800-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

802-009 Switch Panel

SM802 Installation and Operation Manual

1.4 Specifications

1.4.1 Electrical Specifications

Power

Input +28 Vdc at 0.30 A max.
1 A circuit breaker recommended.

Lighting 0 to 115 Vac, 400 Hz.
Independent from knob lighting.

Knobs 0 to 5 Vdc.
Independent from faceplate lighting.
Knobs light in OUT or ON position only.

Mic Inputs

Outputs

Volume Controls

NORM MIC 35 ±5 mA microphone bias current.
OXY MIC 35 ±5 mA microphone bias current.

HOT MIC A direct connection from the selected mic input to the HOT MIC

output, which is connected to the Model 700 amplifier HOT MIC
input.

Transmitter & PA MIC’s A direct connection from the selected mic input to the selected

transmitter or PA mic output.

MUX Data RS422

PASS Impedance 10 kΩ
Power 0.5 W

BRIEFER Impedance 10 kΩ
Power 0.5 W

1.4.2 Physical Specifications

Height 3.93" (99.8 m m) max.
Depth 6.03" (153.2 mm) max. behind panel, excluding connector
Width 5.67" (144.0 mm) max.
Weight 3.0 lbs (1.4 kg) max.
Mounting Panel mount with four 8-32 screws

Section 1 Rev: 1.00 Issue 4 Page 1-2

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

802-009 Switch Panel

SM802 Installation and Operation Manual

Connector 55 pin circular
Faceplate Grey with white text

1.4.3 Environmental Specifications

Temperature -55 to +70°C
Altitude 70,000 feet

Qualification of the 802-009 Switch Panel was completed in accordance with
DO-160C Env. Cat. [A2F2]-BA[CL]XXXXXXZ[BZ]AZZUZLXX.

Note: Refer to Environmental Qualification Form located in Section 2 of this Manual for complete details

of the environmental categories.

1.4.4 Product Approval

FAA: TSO-C50c (RTCA/DO-170, RTCA/DO-160C, RTCA/DO-178A Level 2)

Section 1 ends

Section 1 Rev: 1.00 Issue 4 Page 1-3

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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.

802-009 Switch Panel

SM802 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 802-009 Switch Panel.

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 NAT 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 NAT or its
designated warranty repair center, or any labour to remove or re-install the defective unit in the aircraft.
Contact NAT for any questions regarding this warranty, its applicability to your units and/or for return
authorization. NAT 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 NAT DEALER. Product for which a warranty card is not returned shall be warranted from
date of manufacture.

2.3 Continued Airworthiness

Maintenance of the 802-009 Switch Panel 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 4 Page 2-1

ENG-FORM: 805-0117.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIR BORNE TECHNOLOGY LTD.