ETSI ETS 300 072/A1 ed.1 (1996-10)

Terminal Equipment (TE); Videotex presentation layer protocol; Videotex presentation layer data syntax

RE/TE-01040

Terminalska oprema (TE) – Protokol za predstavitveno plast sistema Videotex – Podatkovna skladnja za predstavitveno plast sistema Videotex

General Information

• Status: Published
• Publication Date: 03-Nov-1996
• Technical Committee: TE 1 - Telematics: Videotex and MultimediaInformation Retrieval Services
• Current Stage: 12 - Completion
• Due Date: 08-Nov-1996
• Completion Date: 04-Nov-1996
• Ref Project: SIST ETS 300 072:2003/A1 E1:2003 - Terminal Equipment (TE); Videotex presentation layer protocol; Videotex presentation layer data syntax

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 072:2003/A1 E1:2003
01-december-2003
Terminalska oprema (TE) – Protokol za predstavitveno plast sistema Videotex –
Podatkovna skladnja za predstavitveno plast sistema Videotex
Terminal Equipment (TE); Videotex presentation layer protocol; Videotex presentation
layer data syntax
Ta slovenski standard je istoveten z: ETS 300 072/A1 Edition 1
ICS:
35.100.60 Predstavitveni sloj Presentation layer
35.180 Terminalska in druga IT Terminal and other
periferna oprema IT peripheral equipment
SIST ETS 300 072:2003/A1 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 072:2003/A1 E1:2003

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SIST ETS 300 072:2003/A1 E1:2003
ETS 300 072
AMENDMENT A1
October 1996
Source: ETSI TC-TE Reference: RE/TE-01040
ICS: 33.060.50
Key words: Videotex, Videotex data syntax
This amendment A1, will modify
the European Telecommunication Standard ETS 300 072 (1990)
Terminal Equipment (TE);
Videotex presentation layer protocol;
Videotex presentation layer data syntax
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail]
Tel.: [phone] - Fax: [phone]
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1996. All rights reserved.

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SIST ETS 300 072:2003/A1 E1:2003
Page 2
ETS 300 072: November 1990/A1: October 1996
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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SIST ETS 300 072:2003/A1 E1:2003
Page 3
ETS 300 072: November 1990/A1: October 1996
Foreword
This amendment to ETS 300 072 (1990) has been produced by the Terminal Equipment (TE) Technical
Committee of the European Telecommunications Standards Institute (ETSI).
This amendment to ETS 300 072 specifies the following additional data syntax elements:
- a second possible display structure;
- references to ITU-T Recommendation T.101, annex C for the use of Arabic, Hebrew and Chinese
character sets;
- references to ITU-T Recommendation T.52 for the use of the Cyrillic character set;
- the switching mechanism between Videotex terminal configurations.
The amendment specifies only additional aspects and contains no deletions to the current content of
ETS 300 072.
Transposition dates
Date of adoption of this ETS: 18 October 1996
Date of latest announcement of this ETS (doa): 31 January 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 July 1997
Date of withdrawal of any conflicting National Standard (dow): 31 July 1997
Amendments
Replace Part 0, subclause 1.2.2 (page 4) with the following text:
"1.2.2 Display structure
Videotex terminals shall use either the theoretical display structure (see subclause 1.2.2.1) or the time
dependent display order (see subclause 1.2.2.2).
1.2.2.1 Theoretical display structure
The theoretical sructure of the display consists of the following layers in order of precedence:
- alphamosaic character foreground and background layers (see part 1, section 1.2);
- photographic layer (see part 3);
- full screen background layer (see part 1);
- any other video source.
Changing the display structure is for further study.
1.2.2.2 Time dependent display order
The terminal structure can be regarded as a one layer display. The receiving order of the VPDEs
determines the display order; the last received VPDE, independent from its type, shall always be
processed and can be displayed. It may superimpose already displayed information."

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SIST ETS 300 072:2003/A1 E1:2003
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ETS 300 072: November 1990/A1: October 1996
Insert the following text in Part 0, clause 2 (page 5) as the 1st paragraph:
"This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the last
edition of the publication referred to applies.
ITU-T Recommendation T.101 (1994): "International interworking for videotex services".
ITU-T Recommendation T.52 (1994): "Non-Latin coded character sets for telematic services".
ETS 300 076 (1994): "Terminal Equipment (TE); Videotex Terminal Facility
Identifier (TFI)".
NOTE: The above references are unnumbered in order to align with the original version of
ETS 300 072 which does not exist in electronic format and consequently cannot be
changed without considerable effort.
Insert the following text as part 0, new clause 4:
"4 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
PLDS Presentation Layer Data Syntax
VPDE Videotex Presentation Data Element"
Replace part 1, subclause 2.1.1, 1st paragraph (page 18) with the following text:
"
...