• CCITT Rec. M.555 (11/1988) – BRINGING INTERNATIONAL DIGITAL BLOCKS, PATHS AND SECTIONS INTO SERVICE
  • 1 Preliminary exchange of information
  • 2 Digital system arrangements
    • 2.1 Digital hierarchy
    • 2.2 Digital interworking arrangements
  • 3 Reference measurements for a path
  • 4 Organization of the control of international digital blocks, digital paths, etc.
    • 4.1 Classes of station
    • 4.2 Classes of digital sections
    • 4.3 Organization of control functions
  • 5 Setting up and initial testing of an international digital path
    • 5.1 Setting up the path
    • 5.2 Initial testing of the digital path
  • 6 Setting up lower-order sections after the initial testing of the higher-order paths
  • ANNEX A – Designation information of international digital blocks and paths
  • A.1 Designation
  • A.2 Related information
  • References