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ETSI TBR 001
- Terminal Equipment (TE); Attachment requirements for terminal equipment to be connected to circuit switched data networks and leased circuits using a CCITT Recommendation X.21 interface, or at an interface physically, functionally and electrically compati
- standard by European Telecommunications Standards Institute, 10/01/1995
- Publisher: ETSI
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Technical characteristics of terminal equipment employing CCITT Recommendation X.21 interface which is capable of connection to circuit switched public data networks and leased circuits