• CCITT Rec. M.140 (11/1988) – DESIGNATIONS OF INTERNATIONAL CIRCUITS, GROUPS, GROUP AND LINE LINKS, DIGITAL BLOCKS, DIGITAL PATHS, DATA TRANSMISSION SYSTEMS AND RELATED INFORMATION
  • CONTENTS
  • 0 General
    • 0.1 Layer 1
    • 0.2 Layer 2
    • 0.3 Layer 3
    • 0.4 Implementation
  • 1 Designations of international public switched circuits
    • 1.1 General
    • 1.2 Telephone-type circuits
    • 1.3 Circuit used for switched telex and telegraph services
    • 1.4 Circuits in the international public switched data network
    • 1.5 Related information
  • 2 Related information for international public switched circuit
    • 2.1 Urgency for restoration (item 1)
    • 2.2 Terminal countries (item 2)
    • 2.3 Names of Administrations or carriers (item 3)
    • 2.4 Control station [sub-control station(s)] (item 4)
    • 2.5 Fault report points (item 5)
    • 2.6 Routing (item 6)
    • 2.7 Association (item 7)
    • 2.8 Equipement information (item 8)
    • 2.9 Use (item 9)
    • 2.10 Transmission medium information (item 10)
    • 2.11 Composition of the transmission (item 11)
    • 2.12 Bandwidth or bit rate (item 12)
    • 2.13 Signalling type (item 13)
  • 3 Designations of international fixed (non-switched) circuits
    • 3.1 General
    • 3.2 International leased circuits
    • 3.3 Fixed (non-switched) public circuits
    • 3.4 Related information
  • 4 Related information for international fixed circuits
    • 4.1 Urgency for restoration (item 1)
    • 4.2 Terminal countries (item 2)
    • 4.3 Names of Administrations, carriers or broadcasting companies (item 3)
    • 4.4 Control station [sub-control station(s)] (item 4)
    • 4.5 Fault report points (item 5)
    • 4.6 Routing (item 6)
    • 4.7 Association (item 7)
    • 4.8 Equipment information (item 8)
    • 4.9 Use (item 9)
    • 4.10 Transmission medium information (item 10)
    • 4.11 Composition of the transmission (item 11)
    • 4.12 Bandwidth or bit rate (item 12)
    • 4.13 Signalling type (item 13)
    • 4.14 Application CCITT Recommendations (item 14)
  • 5 Designations of international groups, supergroups etc. (bidirectional and unidirectional)
    • 5.1 General
    • 5.2 Bidirectional groups, etc.
    • 5.3 Unidirectional groups and supergroups
    • 5.4 Related information
  • 6 Designations of international group links, supergroup links and line links
    • 6.1 Group and supergroup links
    • 6.2 Line links
    • 6.3 Related information
  • 7 Related information for international groups, goup links and line links
    • 7.1 Urgency for restoration (item 1)
    • 7.2 Terminal countries (item 2)
    • 7.3 Names of Administrations, carriers or broadcasting companies (item 3)
    • 7.4 Control station [sub-control station(s)] (item 4)
    • 7.5 Fault report points (item 5)
    • 7.6 Routing (item 6)
    • 7.7 Association (item 7)
    • 7.8 Equipment information (item 8)
    • 7.9 Use (item 9)
    • 7.10 Transmission medium information (item 10)
    • 7.11 End-to-end information (for mixed analogue/digital routes only) (item 11)
    • 7.12 Bandwidth (item 12)
    • 7.13 Occupancy (for groups/supergroups, etc., and for line links) (item 13)
  • 8 Designations of international digital blocks (bidirectional and unidirectional)
    • 8.1 General
    • 8.2 Bidirectional digital blocks
    • 8.3 Restoration digital blocks
    • 8.4 Multiple destination unidirectional digital blocks
    • 8.5 Single destination unidirectional digital blocks
    • 8.6 Related information
  • 9 Designation of international digital paths
    • 9.1 Conventional digital paths not connected to their terminal equipment
    • 9.2 Restoration digital paths
    • 9.3 Digital line sections and digital radio sections
    • 9.4 Related Information
  • 10 Designations of routes in the mixed analogue/digital transmission network
    • 10.1 Transmission routes with one analogue-to-digital conversion
    • 10.2 Transmission routes with two analogue-to-digital conversions
    • 10.3 Transmission routes with more than two analogue-to-digital conversions
    • 10.4 Related Information
  • 11 Designation of data transmission systems
    • 11.1 General
    • 11.2 Data transmission links
    • 11.3 Related Information
  • 12 Related information for international digital blocks, paths and data transmission systems
    • 12.1 Urgency for restoration (item 1)
    • 12.2 Terminal countries (item 2)
    • 12.3 Names of Administration, carriers or broadcasting companies (item 3)
    • 12.4 Control station (sub-control station(s)) (item 4)
    • 12.5 Fault report points (item 5)
    • 12.6 Routing (item 6)
    • 12.7 Association (item 7)
    • 12.8 Equipment informations (item 8)
    • 12.10 Transmision medium information (item 10)
    • 12.11 End-to-end information or composition of transmission (item 11)
    • 12.12 Bit rate (for blocks and paths) (item 12)
    • 12.13 Occupancy (for blocks and for data transmission systems) (item 13)
    • 12.14 Actual number of channels (primary blocks only) (item 14)
    • 12.15 Clocking information (for blocks only) (item 15)
    • 12.16 Direction of transmission (for unidirectional blocks) (item 16)
  • ANNEX A – Full examples for designation information
  • A.1 Full example for the designation information of a public switched telephone circuit
  • A.2 Full example for the designation information of a leased analogue circuit
  • A.3 Full examples for the designation information of an international group and an international group links
  • A.4 Full examples for the designation information of an international digital block, digital path and data ...
  • ANNEX B – Reference section numbers for the various types of routes
  • References