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ETSI - PRETS 300 115

Public Switched Telephone Network (PSTN); Category II Specification for 300 bit/s Duplex Modems Standardized for Use on the PSTN

inactive
Organization: ETSI
Publication Date: 1 July 1997
Status: inactive
Page Count: 19
scope:

This second edition European Telecommunication Standard (ETS) contains the technical characteristics required for end-to-end interworking over the Public Switched Telephone Network (PSTN) of 300 bits per second (bit/s) duplex modems standardized for use over the PSTN, in accordance with CCITT Recommendation V.21 [4].

The term "modem" in the context of this ETS includes all physical implementation practices for a voice band modem which is conductively connected to the PSTN.

This ETS specifies two modes of operation: answer mode and call mode.

NOTE: Modems can provide either simply one of the above modes or provide both modes together with facilities for selecting either of the two modes.

This ETS also contains descriptions of the tests to be performed in order to confirm compliance with the functional requirements contained herein. A general description of the test conditions and test requirements is given in annex A.

Document History

September 1, 1997
Public Switched Telephone Network (PSTN) Category II Specification for 300 bit/s Duplex Modems Standardized for Use on the PSTN
A description is not available for this item.
PRETS 300 115
July 1, 1997
Public Switched Telephone Network (PSTN); Category II Specification for 300 bit/s Duplex Modems Standardized for Use on the PSTN
This second edition European Telecommunication Standard (ETS) contains the technical characteristics required for end-to-end interworking over the Public Switched Telephone Network (PSTN) of 300 bits...
January 1, 1997
Terminal Equipment (TE) Public Switched Telephone Network (PSTN); Category II Specification for 300 bit/s Duplex Modems Standardized for Use on the PSTN
This second edition European Telecommunication Standard (ETS) contains the technical characteristics required for end-to-end interworking over the Public Switched Telephone Network (PSTN) of 300 bits...
January 1, 1991
Attachments to the Public Switched Telephone Network (PSTN) Category II Attachment Requirements for 300 Bits per Second Duplex Modems Standardized for Use on the PSTN (the Text of This ETS May Be Utilized, Wholly or in Part, for the Establishment of NET 21)
This ETS specifies the technical characteristics to be offered by modems seeking Category II approval for duplex operation over the PSTN at 300 bits per second. The modulation scheme specified is...

References

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