Northern Airborne Technology 251 User Manual
Page 3

Model 251 Passenger Speaker Amplifier
SM251 Installation and Operation Manual
Installation and Operation Manual
Page iii
ENG-FORM: 820-0114.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
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
1-4
1.4.3
Environmental Specifications
1-4
1.4.4
Product Approval
1-4
1.5
Unit Nomenclature
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
2-2
2.4.2
Cautions
2-2
2.4.3
Cabling and Wiring
2-2
2.4.4 Mechanical
Installation
2-3
2.4.5
Electrical Installation
2-3
2.4.6
Operating Modes
2-4
2.4.7
Wiring Diagram
2-5
2.4.8 Pin
Assignment
2-8
2.4.9
Post-Installation Checks
2-9
2.5
Adjustments and Connections
2-10
2.6
Accessories Required But Not Supplied
2-10
2.7
Installation Drawings
2-11
3. Operation
3.1 Introduction
3-1
3.2 General
Information
3-1