• BS 6450-7:1990

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

BSI Group, 10/28/1990

Publisher: BS

File Format: PDF

$76.00$152.40


Published:28/10/1990

Pages:14

File Size:1 file , 610 KB

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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.

Cross References:
BS 4778
BS 6450:Part 1:Section 6.1
Telecommunications Act 1984

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