TR 101 149 : 1.1.1
Current
The latest, up-to-date edition.
2-WIRE ANALOGUE VOICE BAND INTERFACES; TERMINAL EQUIPMENT TRANSMITTING VOICE SIGNALS; TEST SIMULATION FOR LEVEL LIMITATION REQUIREMENTS
Hardcopy , PDF
English
Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Background: Analysis of prTBR 37 requirements
(TE with acoustic transducers)
4.1 Mean sending level
4.2 Instantaneous voltage 8 Vpp requirement
(prTBR 37)
4.3 Instantaneous voltage 5 Vpp (TBRs 21 and 37)
4.4 Conclusions
5 TE without acoustic transducers
5.1 Synthesizers
5.2 Signals received from digital or analogue
public network lines
5.3 Signals received from digital or analogue ICP
interfaces
6 Final conclusions
6.1 Input signal level for the measurement of the
mean sending level
6.2 Input signal level for the measurement of the
Instantaneous voltage 8 Vpp requirement (prTBR 37,
extreme loud signals)
6.3 Input signal level for the measurement of the
Instantaneous voltage 5 Vpp requirement (TBRs 21
and 37, normal loud signals)
History
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