{
  "url": "https://openlegislation.uk/telecommunications-open-network-provision-and-leased-lines-regulations-1997/schedule-3",
  "json_url": "https://openlegislation.uk/telecommunications-open-network-provision-and-leased-lines-regulations-1997/schedule-3.json",
  "legislation": "uksi/1997/2932",
  "legislation_title": "The Telecommunications (Open Network Provision and Leased Lines) Regulations 1997",
  "legislation_url": "https://openlegislation.uk/telecommunications-open-network-provision-and-leased-lines-regulations-1997",
  "path": "schedule/3",
  "kind": "schedule",
  "number": "3",
  "heading": "Minimum set of private circuits with harmonised technical characteristics",
  "text": "The minimum set of private circuits to be provided throughout the United Kingdom in accordance with Article 7 of the Leased Lines Directive shall be as follows:\nPrivate Circuit type\nTechnical characteristics\nInterface presentation specifications\nConnection characteristics and performance specifications\nFor the types of private circuits listed above, the specifications referred to also define the network termination points (NTPs), in accordance with the definition given in Article 2 of the ONP Framework Directive.\nOrdinary quality voice bandwidth analogue\n2 wire—ETS 300 448\nor\n4 wire—ETS 300 451\n2 wire—ETS 300 448\n4 wire—ETS 300 451\nSpecial quality voice bandwidth analogue\n2 wire—ETS 300 449\nor\n4 wire—ETS 300 452\n2 wire—ETS 300 449\n4 wire—ETS 300 452\n64 kbit/s digital\nETS 300 288\nETS 300 288/A1\nETS 300 289\n2048 kbit/s digital unstructured\nETS 300 418\nETS 300 247\nETS 300 247/A1\n2048 kbit/s digital structured\nETS 300 418\nETS 300 419",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "The attachment requirements for terminal equipment to be connected to these private circuits are described in Common Technical Regulation 15(CTR 15)."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "The attachment requirements for terminal equipment to be connected to these private circuits are described in Common Technical Regulation 17 (CTR 17)."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "The attachment requirements for terminal equipment to be connected to these private circuits are described in Common Technical Regulation 14 (CTR 14)."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "For an interim period extending beyond 31 December 1996, these private circuits may be provided using other interfaces, based on X.21 or X 21 bis, instead of ETS 300 288."
    },
    {
      "type": "footnote",
      "label": "f5",
      "text": "The attachment requirements for terminal equipment to be connected to these private circuits are described in Common Technical Regulation 12 (CTR 12)."
    },
    {
      "type": "footnote",
      "label": "f6",
      "text": "The attachment requirements for terminal equipment to be connected to these private circuits are described in Common Technical Regulation 13 (CTR 13)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1997/2932/schedule/3",
    "retrieved_at": "2026-10-29T11:41:05.844873+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}