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Common Technical Regulation (CTR). In telecommunications, CTR refers to a rule governing the connection of terminal equipment to networks. CTRs are drawn up, under the provisions of the EU directive 98/13/EC by the Telecommunications research and action center (TRAC) and European Telecommunications Standards Institute (ETSI), at the request of ACTE, which is chaired by the European Commission. These rules apply to all EU member states.

See also

• Communication source
• COLUMBUS II (cable system)
• CALM M5

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