BS 6450-6.1:1993
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators. Simple call-routeing mode (SCRM) Specification for the simple call-routeing mode of PBX operation, with terminating stations treated as an entirety
Hardcopy , PDF
01-05-2009
English
15-02-1993
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Committees responsible
Foreword
Specification
Subsection 1. General requirements
0. Introduction
1. Scope
2. Definitions
3. Compliance principles
4. General
Subsection 2. Electrical characteristics
5. General
6. Selection of a PSTN line for the purposes of
establishing an outgoing PSTN call
7. PSTN signalling methods
8. Incoming PSTN calls
Subsection 3. Marking and information to be provided by
the supplier
9. Marking
10. Information to be provided by the supplier
Annex
A. SCRM tests
Table
1. Information to be provided by the supplier
Figures
1. Relationship of this Section of BS 6450 with
BS 6450: Part 1: 1993 and BS 6450: Part 2: 1993
2. Circuit for determination of PSTN line selection
and application of loop calling, unguarded
signalling method
Specifies requirements for the simple call routeing mode (SCRM) of operation for a PBX connected at the user's premises to analogue interfaces of a PTSN for the terminating stations and their cabling that are treated with the PBX as an entirety. Includes definitions, marking and diagrams.
| Committee |
W/-
|
| DevelopmentNote |
Inactive for the new design. Supersedes 91/94268 DC and BS 6450-6.1(1986) (09/2005)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Supersedes |
| PD 7002:1996 | Essential requirements for connection of terminal equipment to 2-wire analogue interfaces, without capacitive termination, of public switched telecommunication networks using either the earth calling, the loop calling-disconnect clearing, the loop calling-guarded clearing or the loop calling-unguarded clearing signalling method |
| BS 6450-3.1:1993 | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators. Direct dialling in on private branch exchanges Specification for direct dialling in on private branch exchanges with terminating stations treated as an entirety |
| BS 6450-4:1993 | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators Specification for ports |
| 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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