ETS 300 020002 : 20002

Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 General requirements
  4.1 References to other ETSs
  4.2 Information to be provided by the applicant
5 Functional requirements specific to Category II
  modems
  5.1 General requirements
  5.2 Modes of operation/use
  5.3 Line signals
  5.4 Line signalling rates
  5.5 Encoding of data
  5.6 Scrambler and descrambler
  5.7 Channel allocation
  5.8 Hand-shaking sequences
  5.9 Transmission of start-stop characters
  5.10 Threshold of received line signal detector
  5.11 Test loop 2
  5.12 Receiver performance
Annex A (normative): Testing methods
A.1 General testing conditions
A.2 Test for subclause 5.3.1 (Transmitted carrier
    frequency)
A.3 Test for subclause 5.3.2 (Receiver carrier
    tolerance)
A.4 Test for subclause 5.4 (Line signalling rates)
A.5 Test for subclause 5.5 (Encoding of data)
A.6 Test for subclause 5.6 (scrambler and descrambler)
A.7 Test for subclause 5.7 (Channel allocation)
A.8 Test for subclause 5.8 (Hand-shaking sequences)
A.9 Test for subclause 5.9 (Transmission of start-stop
    characters)
A.10 Tests for subclause 5.11 (Test loop 2)
Annex B (informative): Example proforma for the
                       declaration of modes of
                       operation/use
Annex C (informative): Formal description of the
                       start-up sequence
Annex D (informative): Bibliography
History