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BSI BS 6450-7:1990

Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators -- Specification for the procedure for in-service observation of PBXs undergoing type approval
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BSI BS 6450-7:1990

Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators -- Specification for the procedure for in-service observation of PBXs undergoing type approval

PUBLISH DATE 1990
PAGES 16
BSI BS 6450-7:1990
WITHDRAWN, 5/1/2009
Specifies the assessment of PBXs against the integrity of service requirements in BS 6450-1:1983 and the observation of PBXs against appropriate Parts of BS 6450 under operational conditions.
SDO BSI: British Standards Institution
Document Number 6450-7
Publication Date Oct. 28, 1990
Language en - English
Page Count 16
Revision Level
Supercedes
Committee W/-
Publish Date Document Id Type View
Oct. 28, 1990 BS 6450-7:1990 Revision
Sept. 30, 1988 BS 6450-7:1984 Revision