Selection Of Itu-T Standards - ZyXEL Communications 2864 Series User Manual

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Selection of ITU-T standards

X.1-X.15
X.1 International classes for users in public data networks.
X.15 Definitions regarding public data networks.
X.20-X.32
X.25 DTE/DCE interface for terminal equipment used in public
networks working in packet mode.
X.31 Support for packet-oriented terminal equipment in ISDN.
X.32 DTE/DCE interface for packet-oriented terminal equipment which
accesses a public PAD through public phone lines.
X.40-X.87
X.50 Basic multiplex scheme for an international interface between
synchronous data networks.
X.87 Basic standards and methods for the realization of international
features for users and of network features in public data networks.
X.200-X.244
X.200 Reference model for open communication systems for ITU-T
applications.
X.250 Description methods for systems.
X.300-X.310
X.350-X.353
Character Key
ETB CTRL-W
CAN CTRL-X
EM CTRL-Y
SUB CTRL-Z
ESC ESC
FS
GS
RS
US
Services and features.
Interfaces.
Transmission, identification and mediating.
Open communication systems.
Interaction between networks.
Mobile telecommunication systems.
E–2
Description
End of transmission block
Cancel
End of (tape) media
Substitute
Escape
Form separator
Group separator
Record separator
Unit separator