ES 200 778-1 : 1.2.2
Current
The latest, up-to-date edition.
ACCESS AND TERMINALS (AT); ANALOGUE ACCESS TO THE PUBLIC SWITCHED TELEPHONE NETWORK (PSTN); PROTOCOL OVER THE LOCAL LOOP FOR DISPLAY AND RELATED SERVICES; TERMINAL EQUIPMENT REQUIREMENTS; PART 1: ON-HOOK DATA TRANSMISSION
Hardcopy , PDF
English
Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Physical layer requirements
4.1 General requirements
4.2 Alerting method specific requirements
5 Datalink layer - data reception
5.1 Channel seizure
5.2 Mark signal
5.3 Message type
5.4 Message length
5.5 Checksum
6 Presentation layer - message interpretation
7 Safety
8 Electro Magnetic Compatibility (EMC)
Annex A (normative): DTMF based subscriber line protocol
A.1 Introduction
A.2 Definitions
A.3 Requirements
History
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