EN 300 778-2 : 1.2.1
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 2: OFF-HOOK DATA TRANSMISSION
Hardcopy , PDF
English
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Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Physical layer requirements
4.1 Loop state
4.2 Data transmission
4.3 Timer requirements
4.4 Data signals
5 Datalink layer
5.1 Channel seizure
5.2 Mark signal
5.3 Message type
5.4 Message length
5.5 Checksum
5.6 Incorrect checksum
6 Presentation layer - message interpretation
7 Safety
8 ElectroMagnetic Compatibility (EMC)
History
Describes the electrical characteristics and the functional characteristics for Terminal Equipment (TE) for connection to the Network Termination Point (NTP) of a Public Switched Telephone Network (PSTN) interface providing a protocol over the local loop for display services, based on the protocols defined in EN 300 659-2 [1] and EN 300 659-3 [4].
| Committee |
AT FEATURES
|
| DevelopmentNote |
1.2.1 is a withdrawn version. (02/2003)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| Standards | Relationship |
| DIN EN 300778-2:2001-12 | Identical |
| NEN EN 300778-2 : 2001 | Identical |
| NBN EN 300 778-2 : V1.1.1 | Identical |
| ES 200 778-3 : 1.1.2 | 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 3: PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (PICS) PROFORMA SPECIFICATION ON-HOOK AND OFF-HOOK |
| ES 201 912 : 1.2.1 | ACCESS AND TERMINALS (AT); SHORT MESSAGE SERVICE (SMS) FOR PSTN/ISDN; SHORT MESSAGE COMMUNICATION BETWEEN A FIXED NETWORK SHORT MESSAGE TERMINAL EQUIPMENT AND A SHORT MESSAGE SERVICE CENTRE |
| ES 200 778-5 : 1.1.2 | 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 5: ABSTRACT TEST SUITE (ATS) AND PARTIAL PROTOCOL IMPLEMENTATION EXTRA INFORMATION FOR TESTING (PIXIT) PROFORMA SPECIFICATION FOR THE USER; ON-HOOK AND OFF-HOOK |
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