ECMA 226 : 1ED 95

1 Scope
2 Conformance
3 References
4 Definitions
  4.1 External definitions
  4.2 Special definitions
      4.2.1 Channel
            4.2.1.1 D[Q]-Channel
            4.2.1.2 U[Q]-Channel
      4.2.2 Inter-PINX Connection
      4.2.3 Inter-PINX Link
5 Abbreviations
6 Introduction
7 Capabilities at the Q reference point
8 Mapping functions
  8.1 Physical adaptation
      8.1.1 ISDN 2048 kbit/s Primary Rate User-Network Layer
            1 Interface
      8.1.2 ISDN Basic User-Network Layer 1 Interface
      8.1.3 2048 kbit/s Digital Structured Leased Line
            (D2048S)
      8.1.4 2048 kbit/s Digital Unstructured Leased Line
            (D2048U)
      8.1.5 64 kbit/s Unrestricted Digital Leased Line (D64U)
  8.2 Mapping Matrix
      8.2.1 Channel allocation
            8.2.1.1 ISDN 2048 kbit/s Primary Rate User-Network
                    Layer 1 Interface
            8.2.1.2 ISDN Basic User-Network Layer 1 Interface
            8.2.1.3 2048 kbit/s Digital Structured Leased Line
                    (D2048S)
            8.2.1.4 2048 kbit/s Digital Unstructured Leased
                    Line (D2048U)
      8.2.2 Bearer Conditioning for the D[Q]-channel
Annex A - Implementation Conformance Statement (ICS) Proforma
Annex B - Bibliography

Defines the mapping functions in exchanges of Private Integrated Services Networks (PISNs) required for the utilization of intervening network (IVN) scenarios which provide dedicated circuit mode connections for carrying inter-PINX signalling and user information. 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.