# The Telecommunications (Open Network Provision and Leased Lines) Regulations 1997, Schedule 3: Minimum set of private circuits with harmonised technical characteristics


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:
Private Circuit type
Technical characteristics
Interface presentation specifications
Connection characteristics and performance specifications
For 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.
Ordinary quality voice bandwidth analogue
2 wire—ETS 300 448
or
4 wire—ETS 300 451
2 wire—ETS 300 448
4 wire—ETS 300 451
Special quality voice bandwidth analogue
2 wire—ETS 300 449
or
4 wire—ETS 300 452
2 wire—ETS 300 449
4 wire—ETS 300 452
64 kbit/s digital
ETS 300 288
ETS 300 288/A1
ETS 300 289
2048 kbit/s digital unstructured
ETS 300 418
ETS 300 247
ETS 300 247/A1
2048 kbit/s digital structured
ETS 300 418
ETS 300 419

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Source: https://www.legislation.gov.uk/uksi/1997/2932/schedule/3 (the official version)
Page: https://openlegislation.uk/telecommunications-open-network-provision-and-leased-lines-regulations-1997/schedule-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.