ETSI ETS 300 242 ed.2 (1997-05)

SLOVENSKI STANDARD
SIST ETS 300 242 E2:2003
01-december-2003
Terminalska oprema (TE) – Oprema za faksimilno skupino 3
Terminal Equipment (TE); Group 3 facsimile equipment
Ta slovenski standard je istoveten z: ETS 300 242 Edition 2
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 300 242 E2:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 242 E2:2003

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SIST ETS 300 242 E2:2003
EUROPEAN ETS 300 242
TELECOMMUNICATION May 1997
STANDARD Second Edition
Source: ETSI TC-TE Reference: RE/TE-02036
ICS: 33.020
Key words: Fax, group 3, terminal, testing
Terminal Equipment (TE);
Group 3 facsimile equipment
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: secretariat@etsi.fr
Tel.: +33 4 92 94 42 00 - Fax: +33 4 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 1997. All rights reserved.

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ETS 300 242: May 1997
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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Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions and abbreviations .7
3.1 Definitions .7
3.2 Abbreviations .8
4 General requirements .8
5 Technical characteristics.9
5.1 General .9
5.2 Features.9
5.3 Transmitter.9
5.3.1 Document dimensions.9
5.3.2 Scanning track.9
5.4 Receiver.10
5.5 Performance .10
5.6 Control procedures for message transmission and reception .10
5.7 Received image quality.10
5.8 Facsimile switching.11
5.8.1 Automatic calling equipment .11
5.8.2 Facsimile to telephone mode switching.11
5.9 Automatic and manual answering.11
5.10 Extended configurations .11
Annex A (normative): Requirements for the scanner of the facsimile equipment based on test chart
No. 4 of ITU-T Recommendation T.22.12
Annex B (normative): Testing.13
B1 Overview .13
B.1.1 Testing conditions.13
B.1.1.1 Environments for tests .13
B.1.1.2 Power supply limitations.13
B.1.2 Test procedures.13
B.1.3 Protocol test procedures.14
B.1.3.1 Protocol test schedules .14
B.1.3.2 Description of the test tables.14
B.1.3.2.1 Test number .14
B.1.3.2.2 Test type.14
B.1.3.2.3 Tester action.14
B.1.3.2.4 Tester detects.14
B.1.3.2.5 Comments .14
B.1.3.3 Commands/responses list.15
B.1.4 Application service test procedures .15
B.1.4.1 Application service tests.15
B.1.4.2 Description of application service test schedules.15
B.1.5 Definitions and abbreviations.15
B.1.6 Generalities.15
B.2 Tests for ITU-T Recommendation T.4 .16
B.2.1 Test No. T1 to T6.16
B.2.2 Test No. R1 to R5 .17

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B.3 Tests for ITU-T Recommendation T.30. 18
B.3.1 Test No. TN1 to TN12.18
B.3.2 Test No. RN1 to RN12 . 18
B.3.3 Test No. TEB10 to TEB11. 19
B.3.4 Test No. TEB20 to TEB25. 19
B.3.5 Test No. TED10 to TED15 . 21
B.3.6 Test No. TED20 to TED25 . 22
B.3.7 Test No. TED30 to TED36 . 22
B.3.8 Test No. REB10 to REB14. 24
B.3.9 Test No. REB20 to REB22. 24
B.3.10 Test No. RED10 to RED11 . 25
B.4 General tests . 26
B.4.1 Test No. L1 to L5. 26
B.4.2 Test No. T7 to T18 . 26
B.4.3 Test No. R6 to R12 . 28
B.5 Test charts. 29
B.5.1 One-dimensional coding . 29
B.5.2 Printing resolution. 30
B.5.3 Acceptance of total coded scan line duration. 32
B.5.4 Copy quality criteria. 32
B.5.4.1 Description of the pattern. 32
B.5.4.2 Description of the whole error-free test chart . 33
B.5.4.3 Test charts including errors . 33
B.5.4.4 Test charts with single errors. 33
B.5.4.5 Reading of the charts received and recorded, interpretation of the results. 34
B.6 Tests for extended facsimile functions . 34
B.7 Tests for ITU-T Recommendation T.30 Error Correction Mode. 35
B.7.1 Tests for normal conditions. 35
B.7.1.1 Test No. TNO1 to TNO9. 35
B.7.1.2 Test No. RNO1 to RNO9 . 36
B.7.2 Tests for exception conditions. 36
B.7.2.1 Test TE01 to TE02 . 36
B.7.2.2 Tests REO1 and REO2 . 37
B.7.2.3 Test REO3. 38
B.8 Commands/responses list . 39
B.8.1 Content of the DIS/DTC frame used by the tester . 39
B.8.2 Content of the DCS frame used by the tester . 40
History. 41

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Foreword
This second edition European Telecommunication Standard (ETS) has been produced by the Terminal
Equipment (TE) Technical Committee of the European Telecommunications Standards Institute (ETSI).
Transposition dates
Date of adoption: 18 April 1997
Date of latest announcement of this ETS (doa): 31 August 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 28 February 1998
Date of withdrawal of any conflicting National Standard (dow): 28 February 1998

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1 Scope
This second edition European Telecommunication Standard (ETS) specifies the technical characteristics
to be met by Group 3 facsimile equipment to enable reliable document interchange between compliant
equipment. This edition contains amendments to align the text with the relevant ITU-T Recommendations
current at the end of December 1994 and also to correct some editorial errors and it cannot be fully
applied to equipment designed to later versions of the relevant ITU-T Recommendations.
The ETS does not contain the requirements for Public Switched Telephone Network (PSTN) access,
safety or Electromagnetic Compatibility (EMC).
All tests necessary to check conformance to this ETS are included in annex B (normative), which is an
integral part of this ETS.
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] ETS 300 001: "Attachments to Public Switched Telephone Network (PSTN);
General technical requirements for equipment connected to an analogue
subscriber interface in the PSTN".
[2] ITU-T Recommendation T.4 (1994): "Standardization of Group 3 facsimile
apparatus for document transmission".
[3] ITU-T Recommendation T.30 (1994): "Procedures for document facsimile
transmission in the general switched telephone network".
[4] ITU-T Recommendation T.22 (1994): "Standardized test charts for document
facsimile transmission".
[5] ITU-T Recommendation V.17 (1991): "A 2-wire modem for facsimile
applications with rates up to 14 400 bit/s".
[6] ITU-T Recommendation V.27 ter (1989): "4 800/2 400 bits per second modem
standardized for use in the general switched telephone network".
[7] ITU-T Recommendation V.29 (1989): "9 600 bits per second modem
standardized for use on point-to-point 4-wire leased telephone-type circuits".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the following definitions apply:
NOTE: In addition to the definitions shown below, the definitions given in ITU-T
Recommendations T.4 [2], T.30 [3] and T.22 [4] also apply.
group 3 facsimile terminal equipment: This is referred to throughout this ETS as the "facsimile
equipment".
extended configuration: Includes within its own domain at least two independently addressable sinks
and/or two independently addressable sources of facsimile traffic to the public network. An implementation
which is designed to be completely physically included within a personal computer is considered as an
extended configuration.

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3.2 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
ac alternating current
CED Called Station Identification
CFR Confirmation to Receive
CIG Calling Subscriber Identification
CNG Calling Tone
CRP Command Repeat
CSI Called Subscriber Identification
CTC Continue To Correct
dc direct current
DCN Disconnect
DCS Digital Command Signal
DIS Digital Identification Signal
DTC Digital Transmit Command
ECM Error Correction Mode
EMC Electromagnetic Compatibility
EOL End of Line
EOM End of Message
EOP End of Procedure
FIF Facsimile Information Field
FCF Facsimile Control Field
FCS Frame Checking Sequence
FTT Failure to Train
LAN Local Area Network
MCF Message ConFirmation
MPS Multi Page Signal
PABX Private Automatic Branch Exchange
pel picture elements
PIN Procedural Interrupt Negative
PIP Procedural Interrupt Positive
PPR Partial Page Request
PPS-EOP Partial Page Signal - End of Procedure
PPS-MPS Partial Page Signal - Multi Page Signal
PPS-NULL Partial Page Boundary Signal
PSTN Public Switched Telephone Network
RNR Receive Not Ready
RTC Return to Control
RTN ReTrain Negative
RTP ReTrain Positive
SUT System Under Test
TCF Training Check
TSI Transmitting Subscriber Identification
4 General requirements
General requirements concerning access to the PSTN, safety and EMC requirements are not contained in
this ETS.

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5 Technical characteristics
5.1 General
The facsimile equipment shall comply with the requirements of ITU-T Recommendation T.4 [2],
paragraphs 1, 2, 3, 4, 5, 6, 7, 8 and ITU-T Recommendation T.30 [3], paragraphs 1, 2, 3, 4.3, 5, and
additional requirements as described in this ETS. The facsimile equipment may also include the optional
error correction mode described in ITU-T Recommendation T.30 [3], annex A.
The testing specification is given in annex B.
Requirements for the scanner of the facsimile equipment based on test chart No. 4 of ITU-T
Recommendation T.22 [4], are contained in annex A. This applies only if a physical scanner is
implemented.
5.2 Features
Basic feature: A standardized feature which is mandatory for the certificate of conformity.
Optional feature: A standardized feature of facsimile equipment which may be used in a specified way to
supplement the basic features and which incorporates compatibility between facsimile equipment.
Optional features in this ETS are not mandatory but when implemented shall be implemented as
described in this ETS for the certificate of conformity. The applicant shall state which optional features are
to be certified.
Special feature: A non-standardized feature of facsimile equipment which can be used to supplement
basic or optional features but which does not incorporate compatibility between facsimile equipment. A
special feature shall not impair the compatibility of basic or optional features between facsimile equipment.
5.3 Transmitter
For equipment which is capable of sending only A5 and/or A6 size documents, the requirements for
equipment capable of sending A4 size documents shall not be applied.
5.3.1 Document dimensions
The facsimile equipment shall be capable of accepting and scanning documents with dimensions of at
least 212 mm x 299 mm.
5.3.2 Scanning track
The density of picture elements (pel)s along the scanned line shall be between 7,79 pel/mm
(200 pels/25,4 mm -1 %) and 8,12 pel/mm (1 728 pels/215 mm +1 %). The basic scanned line contains
1 728 pels. This length is thus between 1 728/7,79 = 221,8 mm and 1 728/8,12 = 212,8 mm.
For implementations which use centre alignment of the document in the scanner, the reference position of
the document shall be such that the centre of the document lies between picture elements 851 and 877
over the first 20 mm of the document.
For implementations which use right edge alignment of the document in the scanner, the reference
position of the document shall be such that a point 10 mm from the right edge of the document lies
between picture elements 1 623 and 1 648 over the first 20 mm of the document.
The applicant shall state which implementation has been used.
In addition to the basic line length, other lengths may be implemented.
The basic scanning density shall be between 3,81 line/mm (3,85 line/mm -1 %) and 3,98 line/mm
(100 line/25,4 mm +1 %). In addition, the facsimile equipment may provide other scanning densities. The
selection of the one used for message transmission shall be controlled by the transmitting equipment.

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The document shall be positioned such that the first line to be coded and transmitted lies between 0 mm
and 4 mm down the document from the top edge if the facsimile equipment does not transmit information
related to its identity as part of the image signal. If the facsimile equipment does transmit information
related to its identity as part of the image signal, then the first line to be coded and transmitted lies
between 0 mm and 14 mm down the document from the top edge.
5.4 Receiver
For equipment which is capable of receiving only A5 and/or A6 size documents, the requirements for
equipment capable of receiving A4 size documents shall not be applied.
The decoded picture elements shall be recorded as if the scanning direction was from left to right with
subsequent recording lines adjacent to and below the previous line. The direction of recording refers to
viewing the received copy in the vertical plane.
The density of picture elements along the recorded line shall be between 7,79 pel/mm and 8,12 pel/mm.
The effective minimum recorded line length shall be 200 mm.
For implementations which use centre alignment in the printer, the reference position of the recording
medium shall be such that the centre of the recording medium lies between picture elements 851 and 877
over the first 20 mm of the document.
For implementations which use right edge alignment in the printer, the reference position of the recording
medium shall be such that a point 10 mm from the right edge of the recording medium lies between
picture elements 1 623 and 1 648 over the first 20 mm of the document.
The applicant shall state which implementation has been used.
In the case of facsimile equipment limited to A4 length received copies, the position of the recording
medium shall be such that the first line to be recorded lies between 0 mm and 5 mm down the received
copy from the top edge.
5.5 Performance
The performance of the facsimile equipment shall be evaluated using the ITU-T Facsimile Test Chart
No. 4 detailed in ITU-T Recommendation T.22 [4]. Performance tests of the facsimile equipment are
described in annex A of this ETS.
5.6 Control procedures for message transmission and reception
The facsimile equipment shall follow the binary coded control procedures detailed in ITU-T
Recommendation T.30 [3].
As a basic feature, the facsimile equipment should transmit the appropriate subscriber identification signal
Called Subscriber Identification (CSI)/Calling Subscriber Identification (CIG)/Transmitting Subscriber
Identification (TSI) according to ITU-T Recommendation T.30 [3].
5.7 Received image quality
The received image quality criteria, if adjustable, should not be accessible to the operator.
The receiver shall interpret the received image as badly received and send the corresponding ReTrain
Negative (RTN) or Procedural Interrupt Negative (PIN) signal during phase D of the facsimile procedure if
more than 15 % of the detected lines are faulty.
The receiver shall interpret the received image as received with sufficient quality and send the
corresponding Message ConFirmation (MCF), ReTrain Positive (RTP), Procedural Interrupt Positive (PIP)
signal during phase D of the facsimile procedure if less than 5 % of the detected lines are faulty.

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5.8 Facsimile switching
When power is not applied, the facsimile equipment shall remain disconnected from the telephone line,
irrespective of the operation of any controls and of the status (e.g. ringing) of the line interface.
5.8.1 Automatic calling equipment
Automatic calling is not a mandatory feature.
5.8.2 Facsimile to telephone mode switching
The facsimile equipment shall disconnect itself from the telephone line:
- when the facsimile call is complete;
- when a time-out has expired as specified in ITU-T Recommendation T.30 [3];
- upon disconnection of the power.
5.9 Automatic and manual answering
In the automatic answering mode, if provided, the facsimile equipment shall answer incoming calls only if
at least one of the following conditions exists:
- the facsimile equipment is not in an alarm state due to the lack of consumables;
- the facsimile equipment is able to transmit a message according to operating modes 2-R or 4-R as
per ITU-T Recommendation T.30 [3].
If the facsimile equipment is capable of receiving or transmitting a message it shall, upon detection of the
call, answer the call and automatically connect itself to the telephone line.
5.10 Extended configurations
In the case of an extended configuration the following applies:
Activity log
An activity log shall be provided which contains information regarding the results of communications.
The activity log shall be in non-volatile memory or shall be buffered.

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Annex A (normative): Requirements for the scanner of the facsimile
equipment based on test chart No. 4 of ITU-T
Recommendation T.22
Application of TEST CHART No. 4
Due to the width of the test chart No 4 as purchased from ITU-T (width 222 mm), and as the scanner of
the System Under Test (SUT) is not required to accept documents larger than 212 mm (see
subclause 5.3.1), it is necessary to trim the chart by reducing its width to perform some of the tests
described in annexes A and B.
Specifically, to perform test T9 the chart is trimmed equally about the centre line so that it becomes
210 mm wide.
Operational conditions for the test are as follows:
- standard operational conditions as indicated by the manufacturer;
- basic scanning density.
Table A.1: Interpretation of zones of test chart nº4 in ITU-T Recommendation T.22
Interpretation of zones on original chart Requirement on transmitted document
Pattern 2 Pattern 2
Black band covering the entire page width. This zone shall be reproduced with a
Permits adjustment of characteristic "black" homogeneous black colour.
signals through the entire sequence of
electronic devices.
Pattern 7A Pattern 7A
Isolated black and white lines, variable Black lines: at least the line with a thickness
thickness, 2 complementary bands. greater than 100 microns shall be reproduced.
Using this group, it is possible to define the The whole black colour shall be obtained for
limits of resolution for isolated black and white lines with thickness greater than 200 microns.
lines. White lines: it shall be possible to recognize the
Line thickness is indicated in microns. lines with a thickness greater than 200 microns.
The lines shall be completely white for a
thickness greater than 300 microns.
Pattern 8 Pattern 8
Calibrated line pairs (black plus white) per The black lines with 2 pairs of lines per mm on
millimetre. the received copy, shall be separated.
Permits verification of standardized facsimile
machine definition.
Pattern 3D Pattern 3D
Vertical bundles (converging patterns). The 15 black lines on vertical bundles shall be
These bundles of converging lines permit distinguished from a thickness of 300 microns.
quantization of the limits of horizontal and
vertical definitions.
The numbers shown along the bundles indicate
the thickness of black and white lines in
microns.

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Annex B (normative): Testing
B1 Overview
This annex contains test procedures to verify the protocol and application service conformance of the
facsimile equipment.
These test procedures confirm compliance with the basic requirements of this ETS but do not guarantee
full compatibility between facsimile equipment.
B.1.1 Testing conditions
B.1.1.1 Environments for tests
All tests shall be performed at:
- an ambient temperature in the range 15°C to 35°C;
- a relative humidity in the range 25 % to 75 %;
- an air pressure in range 86 kPa to 106 kPa.
Except that tests shall not be performed outside the operating limits for the facsimile equipment as stated
by the applicant.
B.1.1.2 Power supply limitations
For facsimile equipment that is directly powered from the mains supply, all tests shall be carried out within
± 5 % of the normal operating voltage as declared by the applicant. If the power supply is alternating
current (a.c.) the tests shall be conducted within ± 4 % of the stated frequency as declared by the
applicant.
If the facsimile equipment is powered by other means and those means are not supplied as p
...