ETSI TBR 010 ed.1 (1993-12)

Digital Enhanced Cordless Telecommunications (DECT); General terminal attachment requirements: Telephony applications

DTBR/RES-03010

Radijska oprema in sistemi (RES) - Digitalne izboljšane brezvrvične telekomunikacije (DECT) - Splošne zahteve za priključevanje terminala: aplikacije v telefoniji

General Information

• Status: Published
• Publication Date: 17-Dec-1993
• Technical Committee: RES 3 - DECT
• Current Stage: 12 - Completion
• Completion Date: 18-Dec-1993
• Mandate: T-237J
• Ref Project: SIST TBR 010 E1:2004 - Digital Enhanced Cordless Telecommunications (DECT); General terminal attachment requirements: Telephony applications

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2004
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Digital Enhanced Cordless Telecommunications (DECT); General terminal attachment
requirements: Telephony applications
Ta slovenski standard je istoveten z: TBR 010 Edition 1
ICS:
33.070.30 'LJLWDOQHL]EROMãDQH Digital Enhanced Cordless
EUH]YUYLþQHWHOHNRPXQLNDFLMH Telecommunications (DECT)
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL TBR 10
BASIS for December 1993
REGULATION
Source: ETSI TC-RES Reference: DTBR/RES-03-10
ICS: 33.060
DECT, test specification, speech
Key words:
Radio Equipment and Systems (RES);
Digital European Cordless Telecommunications (DECT)
General terminal attachment requirements:
Telephony applications
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 - [e-mail]
X.400: Internet:
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 1993. All rights reserved.
New presentation - see History box

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TBR 10: December 1993
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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TBR 10: December 1993
Contents
Foreword.7
1 Scope .9
2 Normative references . 10
3 Definitions and abbreviations. 12
3.1 Definitions. 12
3.2 Abbreviations. 13
4 Interpretation of the measurement results . 14
5 General test requirements. 15
5.1 Test philosophy. 15
5.1.1 Equipment supporting an ETSI approved profile. 15
5.1.2 Equipment not supporting an ETSI approved profile . 16
5.1.3 Applicant's declaration . 16
5.2 Low noise room . 16
5.3 Lower Tester (LT). 16
5.3.1 Description . 16
5.3.2 Connections between the EUT and the LT. 17
5.3.3 Functions and abilities. 17
5.3.4 Measurement uncertainty. 17
5.4 Upper Tester (UT). 17
5.4.1 Description of the UT. 17
5.4.2 The test standby mode . 17
5.4.3 Test messages . 17
6 Test conditions, power sources and ambient temperatures. 18
6.1 General. 18
6.2 Nominal test conditions. 18
6.3 Power source . 18
7 Speech and telephony tests . 19
7.1 Test configurations. 19
7.1.1 General . 19
7.1.2 Testing a DECT system. 19
7.1.3 Testing a separate PP or FP. 19
7.1.4 Reference FP, ReFP, and reference PP, RePP. 20
7.1.5 Applicability of tests. 21
7.2 Digital signal level. 21
7.3 General conditions of test . 22
7.4 Ideal codec. 22
7.5 Electro-acoustical equipment. 23
7.6 Speech coding scheme. 23
7.6.1 Requirement for speech coding algorithm. 23
7.6.2 Applicant's declaration on speech coding algorithm . 23
7.6.3 Requirement for the digital PCM interface in the FP . 23
7.6.4 Applicant's declaration on the digital PCM interface in the FP. 23
7.7 PP sending frequency response . 24
7.7.1 Requirement . 24
7.7.2 Method of measurement . 24
7.8 PP receiving frequency response. 24
7.8.1 Requirement . 25

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TBR 10: December 1993
7.8.2 Method of measurement .25
7.9 PP loudness rating .25
7.9.1 Requirement .25
7.9.2 Method of measurement .25
7.9.2.1 SLR .25
H
7.9.2.2 RLR .25
H
7.10 User Controlled Volume control in the PP .26
7.10.1 Requirement .26
7.10.2 Method of measurement .26
7.10.2.1 SLR .26
H
7.10.2.2 RLR .26
H
7.11 PP talker sidetone masking rating.26
7.11.1 Requirement .26
7.11.2 Method of measurement .26
7.12 Listener SideTone .27
7.12.1 LSTR requirement .27
7.12.2 Protocol requirement for EUTs with declared noise rejection capability .27
7.12.3 Method of measurement for LSTR.27
7.12.4 Method of measurement for the Protocol Requirement for EUTs with
declared noise rejection capability applying to be approved separately.27
7.12.5 Applicant's declaration for the protocol requirement for EUTs applying to
be approved as a DECT system.28
7.13 Terminal Coupling Loss of a PP.28
7.13.1 TCLw requirement.28
7.13.2 Protocol requirement .28
7.13.3 Method of measurement for TCLw for a PP being approved separately.28
7.13.4 Method of measurement for TCLw for a PP being approved as part of a
DECT system.29
7.13.5 Method of measurement for the protocol requirement for EUTs applying to
be approved separately .29
7.13.6 Applicant's declaration for the protocol requirement for EUTs applying to
be approved as a DECT system.29
7.14 FP echo control functions with a 4-wire interface .29
7.14.1 Static requirements. 29
7.14.2 Dynamic requirements .29
7.14.2.1 Minimum TCLw.29
7.14.2.2 Full TCLw. 30
7.14.3 Artificial echo loss of a FP with a 4-wire interface .30
7.14.3.1 Requirement for artificial echo loss. 30
7.14.3.2 Requirement for the ability to disable the artificial echo
loss .30
7.14.3.3 Method of measurement of artificial echo loss.30
7.14.3.4 Method of measurement for ability to disable artificial
echo loss .30
7.14.3.4.1 EUTs being approved as separate
items .30
7.14.3.4.2 EUTs being approved as a DECT
system with a PP having full TCLw.31
7.14.4 Echo control device of a FP with a 4-wire interface .31
7.14.4.1 Requirement for the echo control device.31
7.14.4.2 Requirement for the ability to disable the echo control
device.31
7.14.4.3 Method of measurement for the echo control device.31
7.14.4.4 Method of measurement for the ability to disable the echo
control function .31
7.14.4.4.1 EUTs being approved as separate
items .31
7.14.4.4.2 EUTs being approved as a DECT
system with a PP having full TCLw.32
7.15 Stability loss - fixed geometry.32

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TBR 10: December 1993
7.15.1 Requirement . 32
7.15.2 Method of measurement . 32
7.16 Stability loss variable geometry. 32
7.16.1 Requirement . 32
7.16.2 Method of measurement . 32
7.17 Sending distortion. 33
7.17.1 Requirement . 33
7.17.2 Method of measurement . 33
7.18 Receiving distortion . 33
7.18.1 Requirement . 33
7.18.2 Method of measurement . 33
7.19 Side tone distortion . 33
7.19.1 Requirement . 33
7.19.2 Method of measurement . 33
7.20 Out of band (sending). 34
7.20.1 Requirement . 34
7.20.2 Method of measurement . 34
7.21 Out of band (receiving) . 34
7.21.1 Requirement . 34
7.21.2 Method of measurement . 34
7.22 Sending noise . 35
7.22.1 Requirement . 35
7.22.2 Method of measurement . 35
7.23 Sending noise (narrow band). 35
7.23.1 Requirement . 35
7.23.2 Method of measurement . 35
7.24 Receiving noise. 35
7.24.1 Requirement . 35
7.24.2 Method of measurement . 35
7.25 Sampling frequency level (receiving) . 35
7.25.1 Requirement . 35
7.25.2 Method of measurement . 36
7.26 Acoustic shock. 36
7.27 DECT network delay . 36
7.27.1 Requirement . 36
7.27.2 Method of measurement . 36
7.28 PP delay . 37
7.28.1 Requirement . 37
7.28.2 Method of measurement . 37
7.29 FP delay. 38
7.29.1 Requirement . 38
7.29.2 Method of measurement . 39
7.30 Echo control at the network side . 40
7.30.1 Requirement . 40
7.30.2 Method of measurement . 40
7.30.2.1 4-wire interface . 40
7.30.2.2 Analogue 2-wire interface. 41
7.30.2.2.1 Requirement 1: . 41
7.30.2.2.2 Requirement 2: . 42
7.31 Variation of gain with input level- sending . 43
7.31.1 Requirement . 43
7.31.2 Method of measurement . 43
7.32 Variation of gain with input level- receiving. 44
7.32.1 Requirement . 44
7.32.2 Method of measurement . 44
8 Loudspeaking and handsfree telephony. 44

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TBR 10: December 1993
Annex A (informative): Essential requirement justification.45
History .46

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TBR 10: December 1993
Foreword
This Technical Basis for Regulation (TBR) has been produced by the Radio Equipment and Systems (RES)
Technical Committee of the European Telecommunications Standards Institute (ETSI) and was adopted
having passed through the ETSI standards approval procedure.
This TBR covers the general attachment requirements for terminal equipment for the Digital European
Cordless Telecommunications (DECT) common interface.
This TBR contains the procedures and requirements for the type examination of Digital European Cordless
Telecommunications (DECT) equipment supporting a 3,1 kHz telephony teleservice.
The requirements of TBR 6 [22] apply in addition to this TBR.
This TBR is based on the DECT Common Interface ETS 300 175 [1] - [8] and [32], and I-ETS 300 176
[31].
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TBR 10: December 1993
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TBR 10: December 1993
1 Scope
This Technical Basis for Regulation (TBR) specifies the technical characteristics particular to telephony
applications provided by terminal equipment which is capable of connection to a public telecommunications
network and which uses Digital European Cordless Telecommunications (DECT). The cordless
transmissions for such terminal equipment operate within the frequency band 1 880 - 1 900 MHz.
The objective of this TBR is to ensure interworking of terminal equipment via the public network.
The requirements in this TBR apply in addition to the attachment requirements for the appropriate public
network (see NOTE) and the TBR for DECT general attachment requirements.
NOTE: TBR for basic ISDN, TBR for primary rate ISDN, or national regulations (implementing
ETS 300 001) for Public Switched Telephone Network (PSTN). Interconnection of a
DECT terminal to a GSM network is still under study; in due course, the scope
statement may need amending to reflect this point.
This TBR is applicable to simple telephony terminals as well as to the telephony function of multi-function or
multi-service terminals.
This TBR includes the speech quality and transmission requirements for a 3,1 kHz telephony teleservice.
For each requirement in this TBR, a test is given, including measurement methods. The terminal equipment
may be stimulated to perform the tests by additional equipment if necessary.
This TBR is not applicable to terminal equipment specially designed for the disabled (e.g. with amplification
of received speech as an aid for the hard-of-hearing).
DECT comprises two equipment elements, referred to as a Fixed Part (FP) and a Portable Part (PP). This
TBR is structured to allow type approval of either a) the FP and PP together, or b) the FP and PP as
separate items. Where the DECT FP is connected to a PSTN, and there are any national peculiarities in
the requirements for voice telephony, these shall be accommodated within the FP.

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TBR 10: December 1993
2 Normative references
This TBR 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 TBR
only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies.
[1] ETS 300 175-1 (1992): "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT) Common Interface Part 1: Overview".
[2] ETS 300 175-2 (1992): "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT) Common Interface Part 2: Physical layer".
[3] ETS 300 175-3 (1992): "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT) Common Interface Part 3: Medium
access control layer".
[4] ETS 300 175-4 (1992): "Digital European Cordless Telecommunications
Common Interface Part 4: Data Link Control layer".
[5] ETS 300 175-5 (1992): "Digital European Cordless Telecommunications
Common Interface Part 5: Network layer".
[6] ETS 300 175-6 (1992): "Digital European Cordless Telecommunications
Common Interface Part 6: Identities and addressing".
[7] ETS 300 175-7 (1992): "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT) Common Interface Part 7: Security
features".
[8] ETS 300 175-8 (1992): "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT) Common Interface Part 8: Speech coding
and transmission".
[9] ETS 300 085 (1991): "Integrated Services Digital Network (ISDN); 3,1 kHz
telephony teleservice. Attachment requirements for handset terminals"
(Candidate NET 33). CTR 8 will replace this ETS when available.
[10] CCITT Revised Recommendation G.726 (IUT April 1991): "40, 32, 24, 16 kbit/s
Adaptive Differential Pulse Code Modulation (ADPCM)".
[11] CCITT Recommendation G.122 (1988): "Influence of national systems on
stability, talker echo, and listener echo in international connections".
[12] CCITT Recommendation O.132 (1988): "Quantization distortion measurement
equipment using a sinusoidal input signal".
[13] CCITT Recommendation G.223 (1988): "Assumptions for the calculation of noise
on hypothetical reference circuits for telephony".
[14] CCITT Recommendation G.714 (1988): "Separate performance characteristics
for the encoding and decoding sides of PCM channels applicable to 4-wire voice
frequency interfaces".
[15] CCITT Revised Recommendation P.51 (1993): "Artificial mouth".
[16] CCITT Revised Recommendation P.64 (1993): "Determination of
sensitivity/frequency characteristics of local telephone systems to permit
calculation of their loudness ratings".

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TBR 10: December 1993
[17] CCITT Revised Recommendation P.79 (1993): "Calculation of loudness ratings".
[18] CCITT Recommendation G.711 (1988): "Pulse Code Modulation (PCM) of voice
frequencies".
[19] CCITT Revised Recommendation P.57 (1993): "Artificial ears".
[20] ISO 3 (1973): "Preferred numbers - series of preferred numbers".
[21] CCITT Revised Recommendation P.50 (1993): "Artificial Voices".
[22] TBR 6: "Radio Equipment and Systems (RES); Digital European Cordless
Telecommunications (DECT) General terminal attachment requirements".
[23] CCITT Revised Recommendation P.80 (1993): "Methods for subjective
determination of transmission quality".
[24] IEC 651: "Sound level meters".
[25] ETS 300 111: "ISDN telephony 3,1 kHz teleservice; service description".
[26] CCITT Recommendation G.101 (1988): "The Transmission Plan".
[27] CCITT Recommendation O.133 (1988): "Specification for equipment to measure
the performance of PCM encoders and decoders".
[28] 91/263/EEC: "Council Directive of 29 April 1991 on the approximation of the laws
of the Member States concerning telecommunications terminal equipment,
including the mutual recognition of their conformity". (Terminal Directive)
[29] 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 (NET 4)".
[30] 73/23/EEC: Council Directive of 19 February 1973 on the harmonization of the
laws of the Member States relating to electrical equipment designed for use
within certain voltage limits. (Low Voltage Directive)
[31] I-ETS 300 176 (1992): "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT) Approval test specification".
[32] ETS 300 175-9 (1992): "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT) Common Interface Part 9: Public access
profile".
[33] ISO DIS 9614: "Acoustic determination of sound power levels of noise sources
using sound intensity, Part 1 Measurement at discrete points.

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TBR 10: December 1993
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this TBR, the following definitions apply:
Acoustic Reference Level (ARL): the acoustic level that corresponds to a power level of
- 10 dBm0 at the digital interface.
Conducted measurements: measurements which are made using a direct connection to the Equipment
Under Test (EUT).
Duplex bearer: the use of two simplex bearers operating in opposite directions on two physical channels.
These pairs of channels always use the same RF carrier and always use evenly spaced slots (i.e.
separated by 0,5 TDMA frame).
Equipment Under Test (EUT): the equipment submitted to the test laboratory for type examination.
Fixed geometry PP: a PP in which the electro-acoustic transducers and their associated acoustic
components are held in fixed relative positions and/or orientations during all on-line conditions of the PP.
Fixed Part (DECT Fixed Part) (FP): a physical grouping that contains all of the elements in the DECT
network between the local network and the DECT air interface.
NOTE 1: A DECT fixed part contains the logical elements of at least one fixed radio termination,
plus additional implementation specific elements.
Fixed radio Termination (FT): a logical group of functions that contains all of the DECT processes and
procedures on the fixed side of the DECT air interface.
NOTE 2: A fixed radio termination only includes elements that are defined in ETS 300 175 [1] -
[8]. This includes radio transmission elements (layer 1) together with a selection of
layer 2 and layer 3 elements.
Full slot (slot): one 24th of a TDMA frame which is used to support one physical channel.
Handset echo: the echo, perceptible by the far-end user, resulting from the coupling between the receive
and send directions of the handset, mostly due to acoustic coupling between transducers. It is particularly
cumbersome in communications including a satellite and an echo canceller, as the DECT handset echo
may be out of range of the echo canceller.
Inter-operability: the capability of fixed parts and portable parts, that enable a portable part to obtain
access to teleservices in more than one location area and/or from more than one operator (more than one
service provider).
Local Echo (LE): the sum of the reflections measured at the digital interface of the RePP. It is calculated
according to CCITT Recommendations G.122 [11], Annex B4, Trapezoidal rule.
Lower Tester (LT): a logical grouping that contains the test equipment, a functionally equivalent DECT PT,
a functionally equivalent DECT FT and a test controller.
Network echo: the echo, perceptible by the DECT user, resulting from reflections in the network. It is
mostly due to hybrid impairments at both ends of the communication. The protection consists of an
additional echo loss located in the receive path of the DECT system.
Public Access Profile (PAP): a defined part of the ETS 300 175-9 [32] that ensures inter-operability
between fixed parts and portable parts for public access services.

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TBR 10: December 1993
Portable HandSet (PHS): a single physical grouping that contains all of the portable elements that are
needed to provide a teleservice to the user.
NOTE 3: Portable handset is a subset of all possible portable parts. This subset includes all
physical groupings that combine one portable radio termination plus at least one
portable application in a single physical box.
Portable Part (PP): a physical grouping that contains all elements between the user and the DECT air
interface. Portable Part (PP) is a generic term that may describe one or several physical pieces.
NOTE 4: A portable part is logically divided into one portable termination plus one or more
portable applications.
Portable radio Termination (PT): a logical group of functions that contains all of the DECT processes
and procedures on the portable side of the DECT air interface.
NOTE 5: A PT only includes elements that are defined in ETS 300 175 [1] - [8]. This includes
radio transmission elements together with a selection of layer 2 and layer 3 elements.
Public: an attribute indicating that the application of the so qualified term is used to provide access to a
public network for the general public.
NOTE 6: The term does not imply any legal or regulatory aspect, nor does it imply any aspects
of ownership.
Telephony 3,1 kHz teleservice: a definition for telephony 3,1 kHz teleservice is to be found in ETS 300
111 [25].
NOTE 7: Work is currently being undertaken by ETSI to analyse the mouth-to-ear characteristics
of voice communication. The results of this work could have consequences for the
essential requirements of this TBR.
Test laboratory: a body which performs testing in accordance with the terminal directive. This laboratory
is accredited to perform 3rd party testing.
Upper Tester (UT): a logical grouping that controls the EUT when under test.
NOTE 8: Commands are sent from the LT to the UT to place the EUT in the appropriate test
mode.
Variable geometry PP: a PP that allows the position and/or orientation of its electro-acoustic transducers
and their associated acoustic components to be changed during all on-line conditions of the PP.
3.2 Abbreviations
For the purposes of this TBR, the following abbreviations apply:
ARL Acoustic Reference Level
BER Bit Error Ratio
CLRR Circuit Loudness Rating, Receive
CLRS Circuit Loudness Rating, Send
dBm dB relative to 1 milliwatt
dBm0 The absolute power level in deciBels referred to a point of zero relative level
dBr The relative power level in deciBels

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TBR 10: December 1993
EUT Equipment Under Test
FP Fixed Part
FT Fixed radio Termination
LmeST Sidetone Path Loss
LE Local echo
LRGP Loudness Rating Guard-ring Position
LSTR Listener Sidetone Rating
LT Lower Tester
MRP Mouth Reference Point
PP Portable Part
PT Portable radio Termination
ReFP Reference Fixed Part (for speech testing)
RePP Reference Portable Part (for speech testing)
RLR Receive Loudness Rating of the Handset
H
SLR Send Loudness Rating of the Handset
H
SL Linear input Signal, see CCITT Recommendation G.726 [10]
SR Reconstructed Signal, see CCITT Recommendation G.726 [10]
STMR Sidetone Masking Rating
TCLw Weighted Terminal Coupling Loss
TELR Talker Echo Loudness Rating
UT Upper Tester
4 Interpretation of the measurement results
The interpretation of the results recorded in a test report for the measurements described in this TBR shall
be as follows:
a) the measured value related to the corresponding limit shall be used to decide whether an equipment
meets the minimum requirements of the standard;
b) the actual measurement uncertainty of the test laboratory carrying out the measurement, for each
particular measurement, shall be included in the test report;
c) the values of the actual measurement uncertainty shall be, for each measurement, equal to or lower
than the values in subclause 1 (table of measurement uncertainty).

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TBR 10: December 1993
5 General test requirements
Where the DECT FP is connected to a PSTN, and there are any national peculiarities in the requirements
for voice telephony, these shall be accommodated within the FP, and the national authorities need to
recognise that deviations of parameters which are justified by the basic principles of the DECT standard
shall be approved (see ETS 300 001 [29]).
Those functions and procedures which are optional, as indicated directly or indirectly by "if provided", shall
be subject to a conformance test if they are implemented. Whether an optional function/procedure has
been implemented shall be indicated by the Apparatus Suppliers declaration.
5.1 Test philosophy
5.1.1 Equipment supporting an ETSI approved profile
Equipment falling into this category is defined in ETS 300 175-1 [1].
In this case, a test equipment capable of emulating a PT or FT that conforms to ETS 300 175 [1] - [8] and
[32] operating an ETSI approved profile (e.g. Public Access Profile, (PAP)) corresponding to that
supported by the EUT is required. Consequently, each test set-up consists of the test equipment being
connected to the EUT, either by a radio link or via an antenna connector, and a call being established. The
following figures show the possible test configurations.
‡‡‡       ‡‡‡
�¯�       �¯�
‡        ‡
�˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝» ‡        ‡ �˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝»
” Upper Tester  ” ‡        ‡ ” Lower Tester  ”
˙˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¶ ‡        ‡ ”         ”
”    PT    ” ‡        ‡ ”  emulating  ”
”    EUT    ˙˜˜�        �˜˜¶   an FT   ”
¨˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝…           ¨˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝…
OR
cable connection
�˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝»           �˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝»
” Upper Tester  ”           ” Lower Tester  ”
˙˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¶           ”         ”
”    PT    ”           ”  emulating  ”
”   EUT    ˙˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¶   an FT   ”
¨˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝…           ¨˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝…
Figure 1: The EUT is a PT
‡‡‡       ‡‡‡
�¯�       �¯�
‡        ‡
�˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝» ‡        ‡ �˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝»
” Upper Tester  ” ‡        ‡ ” Lower Tester  ”
˙˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¶ ‡        ‡ ”         ”
”    FT    ” ‡        ‡ ”  emulating  ”
”    EUT    ˙˜˜�        �˜˜¶   a PT    ”
¨˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝…           ¨˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝…
OR
cable connection
�˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝»           �˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝»
” Upper Tester  ”           ” Lower Tester  ”
˙˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¶           ”         ”
”    FT    ”           ”  emulating  ”
”   EUT    ˙˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¶   a PT    ”
¨˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝…           ¨˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝˝…
Figure 2: The EUT is a FT
Figures 1 and 2 also show that, if available, the EUT can sometimes be connected to the LT by an antenna
connector. This is normally preferred in order to minimise the measurement uncertainties.

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TBR 10: December 1993
The Lower Tester (LT) will consist of the general test equipment with the functionality as described in
subclause 1. Also it will include an RF interface which can emulate the DECT Common Interface.
The UT is contained within the EUT and operates in response to test commands which are sent by the LT
over the air interface. This enables the LT to place the EUT in a variety of test modes. These are
described in subclause 1.
5.1.2 Equipment not supporting an ETSI approved profile
Equipment falling into this category is defined in ETS 300 175-1 [1].
If an LT is available that can establish a speech connection with the EUT and the EUT supports, where
required, the <> information element as described in ETS 300 175-5 [5]
subclause 7.7.41, then approval of an FP and a PP as a separate item is allowed, and the test philosophy
described in subclause 5.1.1 shall be applicable.
If an LT is not available that can establish a speech connection with the EUT or the EUT does not support,
where required, the <> information element as described in ETS 300 175-5 [5]
subclause 7.7.41, then the FP and PP shall be approved as a pair. The applicant shall describe to the test
laboratory how a call is established, maintained and released.
However, when a PT or FT is to be tested as a separate item, the applicant shall provide the test authority
with a means for establishing, maintaining and releasing a speech connection in order to test the EUT.
5.1.3 Applicant's declaration
Where parameters, capabilities, etc. are subject to applicant's declaration and not a specific test, it will be
the applicant's responsibility to:
a) supply a Declaration of Implementation, in which the Applicant explicitly affirms the implementation in
the equipment of certain parameters and capabilities;
b) be prepared to submit upon request supporting design information, including circuit designs and
software source code, demonstrating the implementation of said capabilities;
c) be prepared to supply upon request such test results as are practicable, including the test methods,
which support the declaration.
5.2 Low noise room
Low noise refers to audio sound and not RF radiation.
The test space shall be practically free-field (anechoic) down to a lowest frequency of 275 Hz, and be such
that the handset lies totally within the free field volume. This shall be met if deviations from the ideal free
field conditions are less than ± 1 dB. The ambient noise level shall be less than - 64 dBPa(A).
Measurements made in the low noise room shall satisfy the measurement uncertainty requirements
described in subclause 2.
5.3 Lower Tester (LT)
5.3.1 Description
The LT is a logical grouping that contains a ReFP, RePP, the measurement equipment and the controller of
the DECT testing system. The LT has the job of sending testing commands, performing calculations (e.g.
signal processing) and interacting with the EUT for the various tests. The LT shall implement the
mandatory parts of the DECT specification (see TBR 6 [22]) and any ETSI approved profiles (e.g. PAP).
The LT may implement the Test Support Profile described in TBR 6 [22] Annex D in order to support the
tests messages and procedures in a fully standardised manner.

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TBR 10: December 1993
When testing EUTs that do not support an ETSI approved profile, the LT is not required to have
implemented an ETSI approved profile. See subclause 1.
5.3.2 Connections between the EUT and the LT
This is specified in each test case.
5.3.3 Functions and abilities
The LT shall include all the functions necessary to perform the tests and measurements as described in
this TBR according to the measurement uncertainties described in subclause 3.
5.3.4 Measurement uncertainty
The following values of measurement uncertainty (or better) associated with each measurement parameter
apply to all of the test cases described in this TBR:
Electrical signal power ± 0,2 dB for levels·� 50 dBm
Electrical signal power ± 0,4 dB for levels < - 50 dBm
Sound pressure ± 0,5 dB
Time ± 5 %
Frequency ± 2 %
NOTE: When measuring sampled systems, it is advisable to avoid measuring at multiples of
the sampling frequency. A tolerance of ± 2 % of the frequencies, may be used to avoid
this problem, except at 4 kHz where only the - 2 % tolerance may be used.
The measurement uncertainty is defined as the combined effects of all sources of errors at a confidence
level of at least 95 %.
5.4 Upper Tester (UT)
5.4.1 Description of the UT
The UT is part of, but not necessarily restricted to, the EUT. For the purpose of testing, an EUT capable of
transmitting shall recognise a mandatory set of test commands sent by the LT. The ability to recognise and
implement these commands is contained in the UT which is resident in the medium access control layer as
described in ETS 300 175-3 [3], and as modified by Clause 18 of TBR 6 [22]. All DECT equipment shall be
capable of recognising these commands. An EUT which is declared as implementing the Test Support
Profile shall implement the provisions of the Test Support Profile described in TBR 6 [22] Annex D. The
implementation of the Test Support Profile is not mandatory.
5.4.2 The test standby mode
Accessibility to these messages is controlled by some means of mechanical interlocking method or manual
switching (e.g. dip-switch, jumper, prom, or key-pad code as designated by the applicant) to prevent
accidental execution of these messages in a DECT user environment.
When the EUT has been switched into a mode whereby the test messages are accessible, the EUT is said
to be in the speech test standby mode, whereby the complete speech path is open in the EUT.
5.4.3 Test messages
The MAC layer test messages shall provide the following functions:
a) instruct the EUT to transmit on a LT-specified physical channel. The test message also determines
whether the handover function of the EUT (if so equipped) is disabled and if previous bearers are to
be maintained. See subclauses 7.2.5.4.2 and 12.3 of ETS 300 175-3 [3];

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