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AS 1428.5:2021

[Current]

Design for access and mobility, Part 5: Communication for people who are deaf or hearing impaired

AS 1428.5 provides requirements for the design, application and testing of assistive listening systems, including information to enable access to communication for people who have a hearing impairment or who are deaf.
Published: 03/09/2021
Pages: 65
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Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope and general
1.1 Scope and application
1.1.1 Scope
1.1.2 Application
1.2 Normative references
1.3 Terms and definitions
1.4 Abbreviations
2 Hearing augmentation system
2.1 General
2.2 Types
2.2.1 General
2.2.2 Terminology
2.2.2.1 Hearing loop system
2.2.2.2 Receiver systems
2.2.3 Hearing loop system
2.2.4 Receiver system
2.2.4.1 General
2.2.4.2 Modulated radio system
2.2.4.2.1 Types
2.2.4.2.2 Public wi-fi system and mobile/cellular network
2.2.4.2.3 Wireless technology to connect hearing devices to mobile/cellular devices system
2.2.4.3 Infrared system
2.3 Inbuilt amplification system — Definition
2.4 Emergency warning intercom system (EWIS)
2.5 Coverage and receiver quantities
2.5.1 Coverage
2.5.2 Hearing loop system coverage
2.6 Receivers
2.6.1 Battery
2.6.2 Attachments
2.7 Signal source
2.8 Power source
2.9 Loop listener
2.10 Technical specifications
2.11 Hearing augmentation system at counter
2.11.1 Type
2.11.2 Screen at a counter
2.11.3 Power source
2.11.4 Loop listener
2.12 Microphones
2.12.1 General
3 Hearing loop system
3.1 Telecoil orientation
3.1.1 Blind zones
3.2 Specification
3.2.1 General
3.2.2 Type
3.2.3 Coverage area
3.2.3.1 General
3.2.3.2 Determining coverage area
3.2.4 Testing magnetic field strength
3.2.4.1 General
3.2.4.2 Angle of measurement
3.2.5 Background magnetic field strength noise level
3.2.6 Frequency response of magnetic field
3.2.7 Magnetic field strength
3.2.8 Distortion
3.2.9 Automatic level control
3.2.10 Functional testing
3.2.11 Magnetic field strength references
3.2.12 Signal source
3.2.13 Loop listener
3.2.14 Signage
3.2.15 Measurements
3.2.15.1 General
3.2.15.2 Measuring accuracy
3.2.15.3 Calibration
3.2.16 Certificate of conformance
3.2.17 Test report — Hearing loop system
3.3 Hearing augmentation system for counters
3.3.1 General
3.3.2 Type
3.3.3 Testing magnetic field strength
3.3.4 Background magnetic field strength noise level
3.3.5 Frequency response of magnetic field
3.3.6 Magnetic field strength
3.3.7 Distortion
3.3.8 Automatic level control
3.3.9 Functional testing
3.3.10 Magnetic field strength references
3.3.11 Power and signal source
3.3.12 Loop listener
3.3.13 Signage
3.3.14 Measurements
3.3.14.1 General
3.3.14.2 Measuring accuracy
3.3.14.3 Calibration
3.3.15 Certificate of conformance
3.3.16 Test report —Hearing augmentation system for counters
4 Receiver systems — Modulated radio system
4.1 General
4.2 Specifications
4.2.1 Modulated radio system
4.2.2 Receivers
4.2.3 Receiver attachments
4.2.4 Battery life
4.2.5 Loop listener
4.2.6 Frequency response
4.2.7 Distortion
4.2.8 Automatic level control
4.2.9 Signage
4.2.10 Measurements
4.2.11 Calibration
4.3 Certificate of conformance
4.4 Test report
5 Receiver system — Infrared
5.1 General
5.2 Specifications
5.2.1 Infrared system
5.2.2 Receivers
5.2.3 Receiver attachments
5.2.4 Battery life
5.2.5 Loop listener
5.2.6 Frequency response
5.2.7 Distortion
5.2.8 Automatic level control
5.2.9 Signage
5.2.10 Measurements
5.2.11 Calibration
5.3 Certificate of conformance
5.4 Test report
6 Sound field amplification system
6.1 General
6.2 Requirements
7 Signage
7.1 General
7.2 Hearing augmentation systems for counters
8 Requirements for warning and alerting systems
8.1 General
8.2 Auditory
8.3 Visual warning devices
Appendix A
A.1 Scope
A.2 Hearing loop system coverage
A.3 Receiver system coverage and receiver quantities
A.4 Coverage area
A.5 Modulated radio system
A.6 Infrared system
A.7 Signage
Appendix B
Appendix C
Appendix D
D.1 Why low latency is critical
D.2 Why mobile phones are not suitable as receivers
Appendix E
E.1 General
E.2 Hearing loop system
E.3 Receiver system — Radio frequency
E.4 Receiver system — Infrared
Appendix F
Appendix G
Appendix H
H.1 Scope
H.2 Vibrating alerts
H.3 Smoke alarms
Bibliography
Cited references in this standard
AS/NZS 1428.1
Design for access and mobility, Part 1: General requirements for access
[Current]
Automatic fire detection and alarm systems, Part 17: Warning equipment for people with hearing impairment
[Current]
Fire detection, warning, control and intercom systems — System design, installation and commissioning, Part 4: Emergency warning and intercom systems
AS ISO 7240-23
Fire detection and alarm systems, Part 23: Visual alarm devices
ITU-T Recommendation P.50 (09/99)
Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks, Objective measuring apparatus, Artificial voices
Content history
[Superseded]
DR AS 1428.5:2020