ETS 300 221 Ed.1 (1993)现行
Terminal Equipment (TE); Syntax-based videotex protocol; Lower layer protocols using packet mode access over the Public Switched Telephone Network (PSTN)
出版：European Telecommunications Standards Institute
专家解读视频
Meets the requirements of network operators and equipment manufacturers who are designing equipment to operate with an increased speed on Videotex services over the Public Switched Telephone Network (PSTN). Applies to terminals that support syntax-based Videotex lower layer protocols using packet mode access over the PSTN to be attached to a modem.
ONORM ETS 300221:1993 - Identical
DIN ETS 300221 (1994-01) - Identical
PN ETS 300 221:2005 - Identical
SS ETS 300 221 Ed. 1 (1993) - Identical
