ISO IEC 17309:2000 pdf download – Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Mapping functions for the employment of a circuit mode basic service and the supplementary service user-to-user signalling as a pair of on-demand inter-PINX connections.
1 Scope This International Standard specifies the mapping functions for a pair of on-demand inter-PINX connections using a circuit mode basic service and the supplementary service User-to-User Signalling (service 3) ofa public ISDN at the same time. In order to connect a Private Integrated Services Network Exchange (PINX) to another PINX, mapping functions are required to adapt the specific interfaces at the C reference point to the application at the Q reference point. As such, mapping functions provide for physical adaptation to the interface at the C reference point. Mapping functions also provide for the mapping of user channels and signalling information at the Q reference point to the appropriate channels or timeslots at the C reference point. The C and Q reference points are defined in ISO/IEC 11579-1. At the Q reference point the mappings provide a 64 kbit/s service for user channels and a packet mode service for the signalling channel. Bearer conditioning is outside the scope of this International Standard, except for providing the layer 2 for the signalling channel at the Q reference point. Scenario management is outside the scope ofthis International Standard. This International Standard is applicable to PINXs which can be interconnected to form a Private Integrated Services Network (PISN) and which support signalling protocols at the Q reference point. 2 Conformance In order to conform to this International Standard, a PINX shall satisfy the requirements identified in the Implementation Conformance Statement (ICS) proforma in annex A. 3 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members ofISO and IEC maintain registers ofcurrently valid International Standards. ISO/IEC 11574:2000, Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Circuit-mode 64 kbit/s bearer services — Service description, functional capabilities and information flows. ISO/IEC 11579-1:1994, Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Part 1: Reference configuration for PISNexchanges (PINX). ITU-T Rec. I.112:1993, Vocabulary ofterms for ISDNs. IUT-T Rec. I.210:1993, Principles oftelecommunication services supported by an ISDNand the means to describe them. ITU-T Rec. I.411:1993, ISDNuser-network interfaces — Reference configurations. ITU-T Rec. I.430:1995, Basic user-network interface — Layer 1 specification. ITU-T Rec. I.431:1993, Primary rate user-network interface — Layer 1 specification. ITU-T Rec. Q.920:1993, Digital Subscriber Signalling System No. 1 (DSS1) — ISDNuser-network interface data link layer — General aspects.