DEFSTAN 02-550/2(2003) : 2003

TITLE PAGE
SCOPE
FOREWORD
Sponsorship
Conditions of Release
Categories of Defence Standard
Related Documents
Health and Safety
Additional Information
CONTENTS
SECTION 1 - PERFORMANCE SPECIFICATION
            1.1 Testing and Setting to Work
                1.1.1 General
                1.1.2 Production Tests
                1.1.3 Preliminary Checks
                1.1.4 System Switching Functions
                1.1.5 Speech Paths
SECTION 2 - NATIONAL/INTERNATIONAL REGULATIONS
SECTION 3 - MILITARY STANDARDS/REQUIREMENTS
            3.1 Equipment Description
                3.1.1 Introduction
                3.1.2 Equipment Facilities
                      3.1.2.1 Broadcast Control Unit VCS
                               Unit Type 409
                      3.1.2.2 Broadcast Control Unit VCS
                               Unit Type 410
                      3.1.2.3 Broadcast Microphone Station
                               VCS Unit Type 426
                      3.1.2.4 Broadcast Microphone Station
                               VCS Unit Type 432
                      3.1.2.5 Broadcast Microphone Station
                               VCS Unit Type 461
                      3.1.2.6 Broadcast Microphone Station
                               VCS Unit Type 613
                      3.1.2.7 Broadcast Microphone Station
                               VCS Unit Type 670
                      3.1.2.8 Broadcast Microphone Station (WT)
                      3.1.2.9 Broadcast Control Unit (WT)
                      3.1.2.10 50 W Magnetic Loop Matching Unit
                      3.1.2.11 Microphones
                      3.1.2.12 Relay Unit
                      3.1.2.13 Audio Power Amplifier 300 W
                      3.1.2.14 Single Audio Amplifier,
                               Bulkhead Mounting
                      3.1.2.15 Line Isolation Unit
                      3.1.2.16 Stabilized Power Supply Unit
                      3.1.2.17 Emergency Power Support Unit
                      3.1.2.18 Speech Treatment Panel
                      3.1.2.19 Equipment Cubicles
                      3.1.2.20 Quartermaster's Desk
SECTION 4 - DESIGN REQUIREMENTS/GUIDANCE
            4.1 Responsibilities
                4.1.1 Shipbuilder
            4.2 System Requirements
                4.2.1 General
                4.2.2 System Power Supplies
                4.2.3 Alarm Broadcasts
                4.2.4 Broadcast Priorities
                4.2.5 Standard Microphone Positions
                4.2.6 Muting
            4.3 System Design and Selection
                4.3.1 Future Policy
                4.3.2 Types of System
                4.3.3 Centralized System-Type 22 Frigate
                4.3.4 Decentralized System-Type 23 Frigate
                4.3.5 System Design Factors
                4.3.6 Speech Path Nominal Line Levels
                4.3.7 Circuit Identification
                4.3.8 Central Control Unit-Frigates and below
                      4.3.8.1 Selection from a General
                              Section Outstation
                      4.3.8.2 Selection from Upper Deck or
                              Machinery Sections
                      4.3.8.3 Lockout
                      4.3.8.4 Alarms
                4.3.9 Short Circuit Sensors
                      4.3.9.1 Test Selection
                      4.3.9.2 Power Supplies
                      4.3.9.3 Outstation Requirements
                      4.3.9.4 Switching (Broadcast Selection)
                      4.3.9.5 Indication
                      4.3.9.6 Local Loudspeaker Muting
                4.3.10 Linking
                4.3.11 Outstation Unit Design Factors
                4.3.12 Audio Power Amplifiers-System Considerations
                4.3.13 Amplifier Design Factors
                4.3.14 Loudspeaker Selection and Siting
                4.3.15 System Power Supplies
            4.4 System Installation
                4.4.1 General
                4.4.2 Equipment Cubicles
                4.4.3 Cable Selection
                4.4.4 Earth Bonding
                4.4.5 Cable Screening
                4.4.6 Nuclear Hardening
                4.4.7 Electromagnetic Compatibility
                4.4.8 Mounting
                4.4.9 Equipment Siting
SECTION 5 - CORPORATE EXPERIENCE & KNOWLEDGE
            5.1 Responsibilities
                5.1.1 Fleet Wide Systems
            5.2 System Requirements
                5.2.1 Section Arrangement
ANNEX A - RELATED DOCUMENTS
ANNEX B - ABBREVIATIONS AND DEFINITIONS
ALPHABETICAL INDEX