IEEE 269 1993
$63.38
IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets
Published By | Publication Date | Number of Pages |
IEEE | 1993 | 38 |
Revision Standard – Inactive – Superseded. Superseded by IEEE Std 269-2002. Practical methods for measuring the transmission characteristics of both digital and conventional to wire analog telephone sets by means of objective measurements on a test connection are described. The test results thus obtained may be used as a means of evaluating or specifying the transmission performance of a telephone set on a standardized basis. The measurements are applicable to telephone sets incorporating carbon or linear transmitters. Measurements are over the frequency range most useful for speech: 100-5000 Hz. The test methods are not intended to be applicable to special devices, such as noise-exclusion transmitters, distant-talking transmitters, insert-type receivers, or noise-exclusion receivers equipped with large ear pads. You will receive an email from Customer Service with the URL needed to access this publication online.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | Title page |
3 | Foreword Participants |
5 | CONTENTS |
7 | 1. Introduction 2. Scope |
8 | 3. Definitions |
10 | 4. References |
11 | 5. Test Equipment |
16 | 6. Test Procedure for Analog Sets 6.1 General |
19 | 6.2 Standard Circuits 6.3 Transmit |
23 | 6.4 Receive |
27 | 6.5 Sidetone |
28 | 6.6 Overall Transmission |
29 | 6.7 Telephone Set Impedance 6.8 Telephone Set Resistance |
30 | 7. Test Procedures for Digital Sets 7.1 General 7.2 Standard Circuits 7.3 Transmit Frequency Response 7.4 Receive Frequency Response 7.5 Sidetone Frequency Response 7.6 Overall Frequency Response 7.7 Signal-to-Distortion Ratio |
33 | 7.8 Input-Output Linearity 7.9 Noise 7.10 Acoustic Echo Path Loss 7.11 Peak Acoustic Pressure (Steady-State Input) |
35 | Appendix A— Distortion Using Continuous Spectrum Methods |
36 | Appendix B—Delay |
38 | Appendix C—Carbon Transmitter Orientation for Measurements in the AEN Position |