ETS 300 115 : 20002
Current
The latest, up-to-date edition.
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 (CANDIDATE NET 21)
Hardcopy , PDF
English
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
5.3 Line signals
5.4 Channel allocation
5.5 Response times
5.6 Threshold of the received line signal detector
5.7 Provision of auto-calling and/or answering
facilities (hand-shaking facilities)
5.8 Provision of test looping facilities
5.9 Performance
Annex A (normative): Testing methods
A.1 General testing conditions
A.2 Test for subclause 5.3.1 (carrier frequencies)
A.3 Test for subclause 5.4 (channel allocation)
A.4 Compliance with subclause 5.5 (response times)
A.5 Test for subclause 5.6 (Threshold of received
line signal detector)
A.6 Test for subclause 5.9.1 (Distortion)
Annex B (informative): 300 bits per second modem based
on CCITT Recommendation V.21
History
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