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BSI
BS 6328-1:1985

BS 6328-1:1985

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Apparatus for connection to private circuits run by certain public telecommunication operators Specification for apparatus for connection to speechband circuits

Available format(s)

Hardcopy , PDF

Withdrawn date

27-09-2012

Language(s)

English

Published date

31-10-1985

Publisher

British Standards Institution

Foreword
Committees responsible
Specification
1. Scope
2. Definitions
3. Reference level
4. General requirements
5. Electrical requirements for apparatus other than
     specialized test apparatus
6. Electrical requirements for specialized test
     apparatus
7. Connection requirements
8. Marking
9. Information to be provided by the supplier
Appendices
A. Advisory information on British Telecommunications
     plc speechband circuits
B. Determination of return loss or impedance
C. Measurement of receive-to-transmit loss
D. Measurement of longitudinal conversion loss
E. Measurement of transverse conversion loss
F. Measurement of longitudinal power level
G. Measurement of receiving sensitivity and
     determination of crosstalk characteristic
H. Signal power level determination
Tables
1. Availability of circuit schedules on various types
     of circuit
2. Nominal insertion loss of scheduled speechband
     circuits at 800 Hz
3. Parameters of scheduled speechband circuits
4. Nominal insertion loss of unscheduled speechband
     circuits at 800 Hz
5. Connection arrangements for up to six circuits
6. Connection arrangements for more than six circuits
7. Real ear loss values LEx
8. Data required to calculate Z
Figures
1. Load ZL for return loss measurements
2. Additional circuitry for testing apparatus in
     which direct currents flow
3. Longitudinal power level limits as a function of
     frequency
4. Power level limits in the frequency range d.c. to
     3400 Hz
5. Power level limits at frequencies above 3.4 kHz
6. Circuit for the powering of apparatus
7. Circum-aural adaptor for occluded-ear simulator
     to BS 6310: 1982
8. Tandem, omnibus and multipoint circuits
9. Suggested circuit for testing the immunity of the
     apparatus to 50 Hz longitudinal interference
10. Circuit for the measurement of longitudinal
     conversion loss
11. Circuit for the measurement of transverse conversion
     loss
12. Circuit for the measurement of longitudinal power
     level
13. Measurement of the receiving sensitivity for
     apparatus with a loudspeaker
14. Physical test arrangement for the measurement of
     the receiving sensitivity for apparatus with a
     loudspeaker

Specifies requirements for apparatus, including specialized test apparatus, to be connected to speechband private circuits either directly or indirectly. Provides for safety of public telecommunications systems from electrical conditions originating in the connected apparatus and vice-versa, and minimizing interference with other users and the public telecommunication operators\' main transmission plant.

Committee
TCT/301
DevelopmentNote
Supersedes 84/63324 DC, 86/64474 DC and BS 6328-1(1982) (09/2005) Inactive for the new design. (05/2007)
DocumentType
Standard
Pages
46
PublisherName
British Standards Institution
Status
Withdrawn
Supersedes

BS 6328-2:1985 Apparatus for connection to private circuits run by certain public telecommunication operators Specification for apparatus for connection to baseband circuits
BS 6833-5:1991 Apparatus using cordless attachments (excluding cellular radio apparatus) for connection to analogue interfaces of public switched telephone networks Specification for the cordless elements within PBX apparatus with analogue interfaces to the PSTN and terminating stations treated as an entirety
BS 6450-1:1983 Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators Specification for general requirements
BS 6301:1982 Specification for safety requirements for apparatus for connection to British Telecommunications networks
BS 6450-1:1993 Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators Specification for general requirements
BS 6301:1989 Specification for electrical safety requirements for apparatus for connection to telecommunication networks
BS 6320:1992 Specification for modems for connection to public switched telephone networks and speech band private circuits run by certain public telecommunications operators
BS 6450-4:1993 Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators Specification for ports

BS 4727-3:GRP02(1971) : 1971 GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING & COLOUR TERMS - TERMS PARTICULAR TO TELECOMMUNICATIONS & ELECTRONICS - TELEPHONY TERMINOLOGY
BS 5428-9:1981 Methods for specifying and measuring the characteristics of sound system equipment Programme level meters
BS 6789-2:1984 Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators Specification for apparatus with loudspeaking facilities
BS 6301:1982 Specification for safety requirements for apparatus for connection to British Telecommunications networks
BS 6310:1982 Specification for occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts
BS 6317:1982 Specification for simple telephones for connection to public switched telephone networks run by certain public telecommunication operators
BS 6305:1982 Specification for general requirements for apparatus for connection to the British Telecommunications public switched telephone network
BS 4727-3:GRP03(1971) : 1971 GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING & COLOUR TERMS - TERMS PARTICULAR TO TELECOMMUNICATIONS & ELECTRONICS - TELEGRAPHY INCLUDING FACSIMILE TERMINOLOGY

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Hardcopy - English
PDF - English
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