BS 6450-2:1983
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators Specification for private branch exchanges with terminating stations treated as an entirety
Hardcopy , PDF
15-02-1993
English
01-09-1998
Specifies requirements for private branch exchanges to be connected at the users\' premises directly to the analogue interfaces of the BT PSTN when the terminating stations and their cabling can be treated with the PBX as an entirety. Applies only to a PBX intended to be installed on a single set of premises.
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