PRTBR 001 : MAY 94
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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 COMPATIBLE WITH ITU-T RECOMMENDATION X.21 BUT OPERATING AT ANY DATA SIGNALLING RATE UP TO AND INCLUDING 1 984 KBIT/S
01-10-1995
12-01-2013
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.
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