Terminal Equipment (TE); Basic and recommended additional requirements for terminal equipment supporting Teletex application

This ETS distinguishes between  basic  equipment and equipment with recommended additional requirements for advanced features of service

Terminalska oprema (TE) – Osnovne in priporočene dodatne zahteve za terminalsko opremo, ki podpira uporabo sistema Teletex

General Information

Status
Published
Publication Date
30-Nov-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-2003
Due Date
01-Dec-2003
Completion Date
01-Dec-2003

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SLOVENSKI STANDARD
SIST ETS 300 015 E1:2003
01-december-2003
7HUPLQDOVNDRSUHPD 7( ±2VQRYQHLQSULSRURþHQHGRGDWQH]DKWHYH]D
WHUPLQDOVNRRSUHPRNLSRGSLUDXSRUDERVLVWHPD7HOHWH[

Terminal Equipment (TE); Basic and recommended additional requirements for terminal

equipment supporting Teletex application
Ta slovenski standard je istoveten z: ETS 300 015 Edition 1
ICS:
33.050.30 Oprema za teleks, teletekst, Equipment for telex, teletext,
telefaks telefax
35.180 Terminalska in druga IT Terminal and other
periferna oprema IT peripheral equipment
SIST ETS 300 015 E1:2003 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 015 E1:2003
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SIST ETS 300 015 E1:2003
EUROPEAN ETS 300 015
TELECOMMUNICATION February 1994
STANDARD
Source: ETSI TC-TE Reference: T/TE 07-01
ICS: 33.020, 33.040.40
Teletex
Key words:
Terminal Equipment (TE);
Basic and recommended additional
requirements for terminal equipment
supporting Teletex application
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16

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 1994. All rights reserved.
New presentation - see History box
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ETS 300 015: February 1994

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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ETS 300 015: February 1994
Contents

Foreword...........................................................................................................................................7

1 Scope ......................................................................................................................................9

2 Normative references ................................................................................................................9

3 Definitions............................................................................................................................... 11

4 Abbreviations.......................................................................................................................... 11

5 Scenario description................................................................................................................ 11

6 Conformity.............................................................................................................................. 11

7 Layer description..................................................................................................................... 11

7.1 Network dependent layers (1-4)................................................................................. 11

7.1.1 Access from telephone network(s)........................................................... 11

7.1.2 Access from packet switched network(s)................................................. 11

7.1.3 Access from circuit switched network(s) .................................................. 12

7.1.4 Access from integrated services digital network(s).................................... 12

7.2 Network independent layers (5-7)............................................................................... 12

7.2.1 Session layer description ........................................................................ 12

7.2.2 Presentation layer description ................................................................. 12

7.2.3 Application layer description.................................................................... 12

8 Test specifications................................................................................................................... 12

8.1 Test suites for protocols with end-to-end significance................................................... 12

8.2 Test suites without end-to-end significance.................................................................. 12

8.3 Test suites for system related requirements................................................................ 12

9 Additional session layer requirements (to ITU-T Recommendation T.62)...................................... 13

9.1 ETSI agreed additional requirements to ITU-T Recommendation T.62........................... 13

9.1.1 Paragraph 3.4.1.2a/T.62......................................................................... 13

9.1.2 Paragraph 3.4.4.3/T.62 .......................................................................... 13

9.1.3 Paragraph 3.4.5.1/T.62 .......................................................................... 13

9.1.4 Paragraph 3.4.12/T.62 ........................................................................... 13

9.1.5 Paragraph 3.2.3.2/T.62 .......................................................................... 13

9.1.6 Paragraph 3.2.10/T.62 ........................................................................... 13

9.1.7 Paragraph 3.3.1.1.c/T.62........................................................................ 13

9.1.8 Paragraph 3.3.2.6/T.62 .......................................................................... 13

9.1.9 Paragraph 3.3.2.7.b/T.62........................................................................ 13

9.1.10 Paragraph 3.3.2.10/T.62......................................................................... 14

9.1.11 Paragraph 3.4.3/T.62 ............................................................................. 14

9.1.12 Paragraph 3.4.3.2.e/T.62........................................................................ 14

9.1.13 Paragraph 3.4.4.4/T.62 .......................................................................... 14

9.1.14 Paragraph 3.5.3/T.62 ............................................................................. 14

9.1.15 Paragraph 4.1.4/T.62 ............................................................................. 14

9.1.16 Annex J, paragraph 2.1.1.c/T.62 ............................................................. 14

9.2 Use of the session protocol for interworking with automatic Teletex directory service ..... 14

9.3 Types of document.................................................................................................... 14

10 ETSI agreed additional service and terminal requirements (modifications to ITU-T

Recommendation T.60)............................................................................................................ 14

10.1 Paragraph 4.1.1.1/T.60 ............................................................................................. 15

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10.2 Paragraph 4.1.3/T.60 ................................................................................................15

10.3 Paragraph 8.2.1/T.60 ................................................................................................15

10.4 Paragraph 4.1.4/T.60 ................................................................................................15

10.5 Paragraph 5.1.3/T.60 ................................................................................................15

10.6 Paragraph 7.2.3/T.60 ................................................................................................16

10.7 Paragraph 4.1.3.3/T.60 .............................................................................................16

10.8 Paragraph 4.1.3/T.60 ................................................................................................16

10.9 Paragraph 5.2/T.60 ...................................................................................................16

10.10 Paragraph 6/T.60......................................................................................................16

10.11 Paragraph 7/T.60......................................................................................................17

10.12 Paragraph 7.2.2/T.60 ................................................................................................17

10.13 Paragraph 4.1.3/T.60 ................................................................................................18

10.14 Paragraph 5.2/T.60 ...................................................................................................18

10.15 Paragraph 4.1.2.4/T.60 .............................................................................................19

11 Additional requirements for Teletex systems participating in the Teletex service ...........................20

11.1 Description of a Teletex system..................................................................................20

11.2 Types of Teletex systems ..........................................................................................20

11.2.1 Teletex system with automatic access .....................................................20

11.2.1.1 Teletex system with switched access ...............................20
11.2.1.2 Teletex system with memory based access ......................20
11.2.1.3 Teletex system with switched and memory based access.. 20

11.2.2 Teletex system without automatic access.................................................20

11.2.3 Supplementary Teletex system equipment................................................20

11.3 Types of terminals for Teletex system.........................................................................20

11.3.1 Independent Teletex terminal...................................................................20

11.3.2 Other terminals for the Teletex service.....................................................21

11.3.3 Other equipment.....................................................................................21

11.4 Specification of a Teletex system ...............................................................................21

11.4.1 Quality of service.................................................................................... 21

11.4.2 System's Terminal Identifier (TID)............................................................ 21

11.4.3 Communication-log ................................................................................. 21

11.4.4 Requirements for equipment to connect....................................................21

11.4.4.1 Independent Teletex terminals .........................................21

11.4.4.2 Text terminals for the Teletex service ............................... 22

11.4.4.3 Other terminals for the Teletex service ............................. 22

11.4.4.4 Other equipment.............................................................22

11.4.5 Teletex communications ..........................................................................22

11.4.5.1 Incoming traffic............................................................... 22

11.4.5.2 Outgoing traffic............................................................... 22

11.4.5.3 Traffic restrictions...........................................................23

11.4.6 Test specifications.................................................................................. 23

12 Date and time provisions..........................................................................................................23

13 Local despatching at the receiving side .....................................................................................23

Annex A (normative): Use of the session protocol for interworking with the automatic Teletex

directory service .........................................................................................24

Introduction ......................................................................................................................................24

A.1 General ..................................................................................................................................24

A.2 Request for information............................................................................................................24

A.3 Example diagram for the sequence of events of a request for information carried out within the

scope of the Teletex protocol ...................................................................................................25

A.4 Format specification ................................................................................................................26

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A.4.1 Subscriber request.................................................................................................... 26

A.4.2 General request........................................................................................................ 26

Annex B (normative): Types of documents.................................................................................... 27

B.1 Types of documents................................................................................................................ 27

B.1.1 Annex F.2/T.62, Normal document.............................................................................. 27

B.1.2 Annex F.3/T.62, Operator document........................................................................... 27

B.1.3 Annex F.5/T.62, Monitor document ............................................................................. 27

B.2 Advisory notes and additional information .................................................................................. 27

B.2.1 Paragraph 4.2.10/T.62 .............................................................................................. 27

B.2.2 Paragraph 3.2.1.2/T.62 ............................................................................................. 27

B.2.3 Paragraph 3.2.8 and 3.2.9/T.62 ................................................................................. 27

B.2.4 Paragraph 3.4.11.2/T.62 ........................................................................................... 28

B.2.5 Paragraph 4.1.4/T.62................................................................................................ 28

Annex C (informative): Advisory notes and additional information concerning the presentation of

graphic characters ...................................................................................... 29

C.1 Introduction............................................................................................................................. 29

C.2 Fall-back procedures (ISO 6937/2, Annex E, Clause E.1)........................................................... 29

C.3 Fall-back presentation of accented letters (ISO 6937/1, Annex E, Clause E.2)............................. 30

C.4 Examples of fall-back presentations of non-alphabetic characters (ISO 6937/1, Annex E, Clause

E.3)........................................................................................................................................ 30

Annex D (normative): Date and time provisions ............................................................................. 31

Annex E (normative): Local dispatching at the receiving side (sub-addressing at the application

layer)......................................................................................................... 32

Introduction ...................................................................................................................................... 32

E.1 Local dispatching needs........................................................................................................... 32

E.2 Mechanism used ..................................................................................................................... 32

E.2.1 Description ............................................................................................................... 32

E.2.2 Connection interrupt .................................................................................................. 32

E.3 Coding and format of the normal or control document................................................................. 33

Annex F (informative): Bibliography................................................................................................ 34

History............................................................................................................................................. 35

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Foreword

This European Telecommunication Standard (ETS) has been produced by the Terminal Equipment (TE)

Technical Committee of the European Telecommunications Standards Institute (ETSI).

This ETS defines the basic and recommended additional minimum requirements for terminal equipment

participating in the Teletex service. The terminal described herein offers users the ability to prepare

character coded text messages together with a means of conveying the true contents of such messages to

a distant terminal equipment complying with the same specifications.

Teletex systems such as cluster, Private Automatic Branch Exchanges (PABX), etc., may need additional

requirements. These can be found in Clause 10 of this ETS.

This ETS provides a description of the basic Teletex equipment for use in the international Teletex service.

For optional features the following ETSs apply:

- ETS 300 154: "Terminal Equipment (TE); Terminal characteristics for the telematic file transfer

within the teletex service [ITU-T Recommendation T.571 (1993) modified]" [13].

- prETS 300 243-1 (1993): "Terminal Equipment (TE); Programming Communication Interface (PCI)

Appli/Com for Facsimile group 3, Facsimile group 4, Teletex and Telex services [ITU-T

Recommendation T.611 (1992) modified]" [14].

- prETS 300 243-2 (1993): "Terminal Equipment (TE); Application of ITU-T Recommendation T.611

(1992) and conformance testing on ETS 300 243-1" [22].
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1 Scope

This ETS describes the specification to be used for basic Teletex terminal equipment for use in the

international Teletex service.

This ETS is based on the relevant CCITT and ITU-T Recommendations. In order to provide guidance,

modifications and/or additions are also contained and identified where necessary.

NOTE: Throughout this ETS the term "Administration" should be taken to read as either

"Administration" or "Recognised Private Operating Agency".
2 Normative references

This ETS incorporates by dated or 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 latest edition of the

publication referred to applies.
[1] ITU-T Recommendation T.60: "Terminal equipment for use in the teletex
service".
[2] ITU-T Recommendation T.61: "Character repertoire and coded character sets
for the international teletex service".
[3] ITU-T Recommendation T.62: "Control procedures for teletex and Group 4
facsimile services".
[4] ITU-T Recommendation T.63: "Provisions for verification of teletex terminal
compliance".
[5] ITU-T Recommendation T.64: "Conformance Testing Procedures for the Teletex
Recommendations".
[6] ITU-T Recommendation T.70: "Network independent basic transport service for
the telematic services".
[7] CCITT Recommendation T.90 (1992): "Characteristics and protocols for
terminals for telematic services in ISDN".
[8] CCITT Recommendation T.390 (1988): "Teletex requirements for interworking
with the telex service".
[9] CCITT Recommendation F.200 (1992): "Teletex service".
[10] ITU-T Recommendation F.201: "Interworking between teletex service and telex
service - General principles".

[11] ETS 300 081 (1993): "Integrated Services Digital Network (ISDN); Teletex end-

to-end protocol over the ISDN".
[12] ETS 300 017: "Terminal Equipment (TE); Test procedures for Teletex".
[13] ETS 300 154: "Terminal Equipment (TE); Terminal characteristics for the
telematic file transfer within the teletex service [ITU-T Recommendation T.571
(1993) (modified)]".
[14] prETS 300 243-1: "Terminal Equipment (TE); Programming Communication
Interface (PCI) Appli/Com for Facsimile group 3, Facsimile group 4, Teletex and
Telex services [CCITT Recommendation T.611 (1992) modified]".
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ETS 300 015: February 1994
[15] ENV 41104: "Packet-switched data network; permanent access (FS T/31)".

[16] ENV 41106: "Digital data circuit (circuit switched data networks); provision of the

OSI connection-mode transport service in the T.70 case for telematic end
systems (FS T/41)".
[17] ENV 41105: "Packet-switched data network; switched access (FS T/32)".

[18] NET 1: "Approval requirements for data terminal equipment to connect to CSPN

and leased circuits using CCITT Recommendation X.21 interface".
[19] NET 2 (1988): "Approval requirements for Data Terminal Equipment (DTE) to
connect to Packet Switched Public Data Network (PSPDN) using CCITT
Recommendation X.25 (1984) interface".
[20] ETS 300 001 (1992): "Attachments to Public Switched Telephone Network
(PSTN); General technical requirements for equipment connected to an analogue
subscriber interface in the PSTN (candidate NET 4)".
[21] ETS 300 080 (1992): "Integrated Services Digital Network (ISDN); ISDN lower
layer protocols for telematic terminals".
[22] prETS 300 243-2: "Terminal Equipment (TE); Application of CCITT
Recommendation T.611 (1992) and conformance testing on ETS 300 243-1".

An overview on the relation of standards to each other is given in figures 1 and 2 as follows.

Layers Teletex Terminal Specification

�˜˜˜˜˜˜˜¿ �˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¿

‡ 7 ‡ ‡ ‡

ˆ˜˜˜˜˜˜˜· ‡ ‡

‡ 6 ‡ ‡ ETS 300 015 ‡

ˆ˜˜˜˜˜˜˜· ‡ ETR 052 (NOTE 2) ‡

‡ 5 ‡ ‡ ‡

ˆ˜˜˜˜˜˜˜· ‡ �˜˜¿ �˜˜´˜˜˜˜˜˜˜˜˜˜˜˜˜˜´˜˜´˜˜˜˜˜˜˜˜˜˜˜˜˜˜·

‡ 4 ‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜· ‡ ‡ ‡ ‡

ˆ˜˜˜˜˜˜˜· ‡ ‡ ‡ ‡ ‡ETS 300 080 ‡ ‡ ETS 300 001 ‡

‡ 3 ‡ ‡ ‡ ‡ ‡ ‡[21] (NOTE 4) ‡ ‡ [20] (NOTE 3)‡

ˆ˜˜˜˜˜˜˜· ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡

‡ 2 ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡

ˆ˜˜˜˜˜˜˜· ˆ˜˜˜˜˜˜˜˜˜˜˜´˜˜· ‡ �˜˜· ‡ �˜˜˜· ˆ˜˜˜˜˜˜˜˜˜˜˜´˜˜·

‡ 1 ‡ ‡NET 1 [18]‡1)‡ ‡NET 2 [19] ‡1)‡ ‡ ‡ 1)‡ ‡ NET 4 ‡1)‡

�˜˜˜˜˜˜˜� �˜˜˜˜˜˜˜˜˜˜˜`˜˜� �˜˜˜˜˜˜˜˜˜˜˜`˜˜� �˜˜˜˜˜˜˜˜˜˜`˜˜˜� �˜˜˜˜˜˜˜˜˜˜˜`˜˜�

CSPDN PSPDN ISDN PSTN

NOTE 1: National additions (e.g. mandatory use of data and time information in CSPDN).

NOTE 2: ETR 052 deals with Teletex-telex-intercommunication.
NOTE 3: ETS 300 001 [20] includes layer 4 as well.
NOTE 4: See figure 2.
Figure 1: Teletex terminal specification
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ETS 300 015: February 1994
Layers
�˜˜˜˜˜˜˜¿
‡ ‡ �˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¿
‡ 4 ‡ ‡ ITU-T Recommendation T.70 [6](Clauses 1 to 4) ‡
‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜´˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜·
ˆ˜˜˜˜˜˜˜· ‡ ETR 018 ‡ ‡
‡ ‡ ‡ ETS 300 102-1 ‡ ‡
‡ 3 ‡ ‡ ETS 300 102-2 ‡ ISO 8208 ‡
‡ ‡ ‡ ‡ ‡
ˆ˜˜˜˜˜˜˜· ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜·
‡ ‡ ‡ ‡ ‡
‡ 2 ‡ ‡ ETS 300 125 ‡ CCITT X.75 ‡
‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜`˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜·
ˆ˜˜˜˜˜˜˜· ‡ ‡
‡ ‡ ‡ ETS 300 012 ‡
‡ 1 ‡ ‡ ‡
‡ ‡ ‡ ETS 300 011 ‡
�˜˜˜˜˜˜˜� �˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜�
Figure 2: ETS 300 080 [21]
3 Definitions

The terms used in this ETS are as defined in the ITU-T Recommendations T.60 [1], T.61 [2], T.62 [3], T.63

[4], T.64 [5], T.70 [6] and F.201 [10] and CCITT Recommendation T.90 [7], T.390 [8] and F.200 [9].

4 Abbreviations

The abbreviations used in this ETS are as defined in the same ITU-T and CCITT Recommendations

referenced in Clause 3 above. The following abbreviations also apply.
ETS European Telecommunication Standard
ETSI European Telecommunications Standards Institute
TE Terminal Equipment
5 Scenario description

Exchange of Teletex documents between two end systems, which are Teletex terminal equipments

participating in the international Teletex service.

The overall operation of the Teletex service is as defined in CCITT Recommendation F.200 [9].

6 Conformity

A Teletex equipment shall be in conformity with this ETS if it follows the requirements which are contained

in Clause 7 below.

NOTE: The tests to be passed in order to check the conformance technically are laid down in

ITU-T Recommendation T.64 [5] and ETS 300 017 [12].
7 Layer description
7.1 Network dependent layers (1-4)
7.1.1 Access from telephone network(s)

The implementation of the telephone network access shall be fully in line with the provisions laid down and

described in ITU-T Recommendation T.70 [6] together with ENV 41105 [17].
7.1.2 Access from packet switched network(s)

The implementation of the Packet Switched Public Data Network (PSPDN) access shall be fully in line with

the provisions laid down and described in ITU-T Recommendation T.70 [6] together with ENV 41104 [15].

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7.1.3 Access from circuit switched network(s)

The implementation of the Circuit Switched Public Data Network (CSPDN) access shall be fully in line with

the provisions laid down and described in ITU-T Recommendation T.70 [6] together with ENV 41106 [16].

7.1.4 Access from integrated services digital network(s)

The implementation of the Integrated Services Digital Network (ISDN) access shall be fully in line with the

provisions laid down and described in ITU-T Recommendation T.70 [6] together with ETS 300 080 [21].

7.2 Network independent layers (5-7)
7.2.1 Session layer description

The implementation of the session layer shall be fully in line with the provisions laid down and described in

ITU-T Recommendation T.62 [3] together with Clause 9 of this ETS.
7.2.2 Presentation layer description

The implementation of the presentation layer shall be fully in line with the provisions laid down and

described in ITU-T Recommendation T.61 [2].
7.2.3 Application layer description

The implementation of the application/service layer shall be fully in line with the provisions laid down and

described in ITU-T Recommendation T.60 [1]. This provides compatible intercommunication (according to

CCITT Recommendation F.200 [9]) between terminal equipment. However, to allow a more sophisticated

quality of service, recommended additional service and terminal requirements are given in Clause 10 of this

ETS.
8 Test specifications
8.1 Test suites for protocols with end-to-end significance

The test suites for protocols with end-to-end significance in the CSPDN, PSPDN, Public Switched

Telephone Network (PSTN) and ISDN shall be laid down as described in ETS 300 017 [12].

8.2 Test suites without end-to-end significance

a) The test suites for the CSPDN access layers, laid down and described in NET 1 [18], shall apply.

b) The test suites for the PSPDN access layers, laid down and described in NET 2 [19], shall apply.

c) The test suites for the ISDN access layers, D-channel only, laid down and described in ETS 300 080

[21], shall apply.

d) The test suites for the PSTN access layers, laid down and described in ETS 300 001 [20], shall

apply.
e) The test procedures with end-to-end significance in the ISDN shall
...

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