1、 STD-ETSI TR 101 1812-ENGL 1998 W 3g00855 032bLb7 50b W TR 1 O1 182 1.1.1 (1998-07) Technicat Repon Analogue Terminals and Access (ATA); Definitions, abbreviations and symbols - STD-ETSI TR 101 182-ENGL 1998 D 3400855 032bLb8 442 = 2 Reference DTR/ATA-000002 (ay000ics.PDF) Keywords PSTN, terminal, v
2、ocabulary ETSI Postal address F-O6921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre !a Sous-Prfecture de Grasse (06) N“ 7803/88 Tel.: +33 4 92 94 42 O0 Fax: +33
3、 4 93 65 47 16 Internet TR 1 O1 182 V1.l .i (1 998-07) secretariat d etsi.fr http:/www.etsi.fr http:/www.etsi.org 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. O European T
4、elecommunications Standards Institute 1998. All rights reserved. ETSI 3 TR 101 182 Vl.l.1 (1998-07) Contents Intellectual Property Rights 4 Foreword . 4 1 Scope 5 2 References 5 3 Definitions and abbreviations 6 3.1 General definitions . 6 3.2 CLI related definitions . 3.3 Abbreviations 11 4 Symbols
5、 12 5 Keywords . 12 History 14 ETSI STD-ETSI TR 101 LhZ-ENGL 1778 W 3400855 032bL70 OTO W 4 TR 1 O1 182 V1.l.l (1 998-07) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, i
6、f any, is publicly available for ETSI members and non-members, and can be found in SR O00 314: “Intellectual Property Rights (IPRs): Essential, or potentially Essential, IPRs notifed to ETSI in respect of ETSI standards”, which is available free of charge from the ETSI Secretariat. Latest updates ar
7、e available on the ETSI Web server (http:/www.etsi.r/ipr or http:/www .etsi.orghpr). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in SR O00 314 (or the updates on th
8、e ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This ETSI Technical Report (TR) has been produced by ETSI Project Analogue Terminals and Access (ATA) ETSI STD-ETSI TR 101 182-ENGL 1778 3400855 032b171 T37 = 1 2 3 5 TR 1 O1 182 V1.1.1 (1 998-07) Use
9、r TR used for Potential Benefit ETSI Project ATA Other ETSI Technical Bodies terminology, and on how ATA ETSI Usergroups Provide guidance for ATA rapporteurs Provide guidance on ATA interpret common terms Provide guidance on ETSI Project ATA terminology Improved quality of ATA documents througt cons
10、istency and coherence of definitions, abbreviations and svmbols Promote harmonized terminology within Increased awareness in other interested parties of ATA terminology and its applications in documents 1 Scope The present document presents a list of the definitions, abbreviations and symbols used i
11、n the documents prepared by the ETSI Project Analogue Terminals and Access (ATA). The purpose of the present document is primarily to give guidance to ATA rapporteurs in the preparation of their documents, and to assist the usability of these documents through the use of consistent terminology. Furt
12、hermore it is intended to align, as far as possible, the definitions abbreviations and symbols with the corresponding ones from 1T and make them available within ETSI for other Technical Bodies, membership and clients. The definitions, abbreviations and symbols given are not intended to be exclusive
13、. Other definitions, abbreviations and symbols different from those given here may be found in some ATA documents. However, the defmitions given in the present document are generally to be preferred. The intended users of the present document include: Table 1: Intended users and potential benefits 2
14、 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. 111 L2J 131 141 151 References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific re
15、ference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same number. ITU-T Recommendation P.10: “Vocabulary of terms on telephone transmission q
16、uality and telephone sets“. TR 101 183: “Public Switched Telephone Network (PSTN); Analogue ringing signals“. TBR 21: “Terminal Equipment (TE); Attachment requirements for pan-European approval for connection to the analogue Public Switched Telephone Networks (PSTNs) of TE (excluding TE supporting t
17、he voice telephony service) in which network addressing, if provided, is by means of Dual Tone Multi Frequency (DTMF) signalling“. TR 101 149: “2-wire analogue voice band interfaces; Terminal Equipment transmitting voice signals; Tes simulation for level limitation requirements“. EG 201 120: “Public
18、 Switched Telephone Network (PSTN); Method of rating terminal equipment so that it can be connected in series and/or in parallel to a Network Termination Point (NTP)“. ETSI - STD-ETSI TR JO1 JAZ-ENGL 1798 m 3400855 032bL72 773 m 6 TR 101 182 V1.l.l (1 998-07) i61 171 191 181 1101 ITU-T Recommendatio
19、n G.122: “Influence of national systems on stability and talker echo in international connections “ . ITU-T Recommendation G. 11 7: “Transmissions aspects of unbalance about earth“. ITU-T Recommendation P.340: “Transmission characteristics of hands-free telephones“. ITU-T Recommendation P.79: “Calcu
20、lation of loudness ratings for telephone sets“. ITU-T Recommendation E.161: “Arrangement of digits, letters and symbols on telephones and other devices that can be used for gaining access to a telephone network“. ITU-T Recommendation Z. 100: “CCIT specification and description language (SDL)“. IS0 3
21、1-0: “Quantities and units - Part O: General principles“. IEC 60050-722 (1993): “International Electrotechnical Vocabulary - Chapter 722: Telephony“ Council directive 90/387/EEC of 28 June 1990 on the establishment of the internal market for telecommunications services through the implementation of
22、open network provision (ONP). ITU-T Recommendation G.lOO: “Definitions used in Recommendations on general characteristics of international telephone connections and circuits“. Directive 98/13/EC of the European Parliament and of the Council of 12 February 1998 relating to telecommunications terminal
23、 equipment and satellite earth station equipment, including the mutual recognition of their conformity. 3 Definitions and abbreviations 3.1 General definitions acoustic shock: Any temporary or permanent disturbance of the functioning of the ear, or of the nervous system, which may be caused to the u
24、ser of a telephone earphone by a sudden sharp rise in the acoustic pressure produced by it LITU-T Recommendation P.101 NOTE I: An acoustic shock usually results from the occurrence, in abnormal circumstances, of short-lived high voltages at the terminals of a telephone set. activity factor: Ratio of
25、 the active time to total timed elapsed during a measurement, usually expressed as a percentage ITU-T Recommendation P.1OJ artificial ear: A device for the calibration of earphones incorporating an acoustic coupler and a calibrated microphone for the measurement of sound pressure and having an overa
26、ll acoustic impedance similar to that of the average human ear over a given frequency band ITU-T Recommendation P.101 Artificial mouth: A device consisting of a loudspeaker mounted in an enclosure and having a directivity and radiation pattern similar to those of the average human mouth ITU-T Recomm
27、endation P.lo automatic repeat call attempts: An automatic repeat call attempt made by the TE to the same network address as the result of the failure of the previous call attempt and not as a result of an external stimulus to the TE TBR 211 call attempt: The process by which the TE seizes the PSTN
28、line and sends signalling characters of the network address with which the TE wishes to communicate TBR 211 call completion busy subscriber: A supplementary service where if a call attempt fails due to the called party being busy, the network monitors the called party until it is available and then
29、alerts the original caller TR 101 1831 call completion no reply: A supplementary service where if a call attempt fails due to the called party not answering, the network monitors the called party until it is available and then alerts the original caller TR 101 1831 STD-ETSI TR LO1 18Z-ENGL 1998 = 34
30、00855 032bL73 BOT 7 TR 1 O1 182 V1.l.l (1 998-07) centrex out of group call: TEs on a centrex service alert using different ringing signals to indicate if the call has been originated from within or outside the centrex group TR 101 1831 crosstalk: The appearance of undesired energy in a channel, owi
31、ng to the presence of a signal in another channel, caused by, for example induction, conduction or non linearity iEC 60050-7221 decadic signalling: See Loop Disconnect signalling (LD) distinctive ringing: Special ringing patterns sent by the network to convey information to the TE about the called n
32、umber, the calling number or the status of an automatic call request TR 101 1831 echo return loss: Return loss averaged with l/f power weighting over the frequency band 300 Hz to 3 400 Hz, in accordance with clause 4 of 1TU-T Recommendation G.122 frequency band: A continuous set of frequencies lying
33、 between two specified limiting frequencies EC 60050-7221 NOTE 2: A frequency band is characterized by two values which define its position in the frequency spectrum, for example, its lower and upper limiting frequencies. handset: A combination of telephone microphone and receiver in a form convenie
34、nt for holding simultaneously to mouth and ear, which, when in use, retains the microphone in a position fmed in relation to the receiver TBR 381 handset telephony: A function provided by terminal equipment whereby two-way real-time speech is supported by means of a handset that forms an integral pa
35、rt of the terminal equipment. The term “real-time speech is also frequently used to describe “live speech TBR 381 handsfree function: A function whereby telephony transmission and reception is facilitated by the use of rnicrophone(s) and loudspeaker(s) placed at a distance from the user. No handset
36、is required to be used and normally the handset is not active TBR 381 Hands-Free Reference Point (HFRP): A point located on the axis of the artificial mouth, at 50 cm from the lip ring, where the level calibration is made, in free field, as defined in IT-T Recommendation P.340 subclause 5.3 Installa
37、tion Connection Point (ICP): A point on a user installation, intended to accept the connection of a TE. See figure 1 NOTE 3: The ICP may also be part of a series connected TE. NOTE 4: The ICP may present to the TE physical characteristics identical to those of the NTP LEG 201 1201. Network Installat
38、ion TCP ICP PSTN Local exchange Figure 1: Example of users installation Loading Factor (LF): The portion of PSTN resources used by a TE or a set of TE (installation) when connected to a Network Termination Point (NTP) LEG 201 1201 Longitudinal Conversion Loss (LCL): A measure of the degree of an bal
39、ance about earth. More information is given in ITU-T Recommendation G. 117, subclause 4.1.3 Loading Unit (LU): An arbitrary unit to measure (or evaluate) the Loading Factor LEG 201 1201 Loop Disconnect signalling (LD): A signal sent in form of a sequence of identical pulses of a break in the loop cu
40、rrent, the number of pulses corresponds to a specific digit to be transmitted. Loop Disconnect signalling is also known as Decadic signalling ETSI 8 TR 1 O1 182 V1.l.l (1 998-07) loop state: The state where the TE draws sufficient DC current to activate the exchange. The Loop state is also known as
41、the on-line state or the off-hook state TBR 21 J loop steady state: A loop state excluding the transitions from and to quiescent state TBR 211 loudness rating: A measure, expressed in decibels, for characterizing the loudness performance of complete telephone connections or of parts thereof such as
42、sending system, line, receiving system ITU-T Recommendation P.101 loudspeaking function: A function of a handset telephone using a loudspeaker associated with an amplifier as a telephone receiver TBR 381 Multi-Line Terminal Equipment (MLTE): A TE connected to the PSTN via two or more smilar or diffe
43、rent TCPs Mouth Reference Point (MRP): A point 25 mm in front of and on the axis of the lip position of a typical human mouth (or artificial mouth) ITU-T Recommendation P.101 multiple subscriber number: A supplementary service which provides the called NTP with a distinctive ringing signal or an enh
44、anced signalling indication for each directory number associated with that NTP TR 101 1831 Network Termination Point (NTP): The physical point at the boundary of the telephone network intended to accept the connection of a TE. See figure 4 NOTE 5: Directive 90/387/EEC defines NTP as “All physical co
45、nnections and their technical access specifications which form part of the public telecommunications network and are necessary for access to and efficient communications through that public network“ TBR 211. normal ringing: The ringing pattern sent by a network to indicate normal delivery of an inco
46、ming call to the TE TR 101 1831 Output Signal Balance (OSB): A measure of the degree of an balance about earth. More information is given Recommendation G.117 subclause 4.3.1 in ITU-T peak to peak voltage: The difference between the maximum and minimum voltage during any specified time window pink n
47、oise (for the purpose of testing analogue voice-band interfaces or terminals): A test signal that has the following characteristics: - a) where analogue filters are used the slopes of the band limiting filter is at least 24 dB/ octave and the out-of-band attenuation is at least 25 dB (see figure 2).
48、 - band limited to the frequency range 200 Hz to 3 800 Hz and; the third octave spectrum of the electrically generated pink noise is equalized to within ? IdB, while the acoustically generated pink noise is equalized (in free field) to within k 3 dB. NOTE 6: When measured with 1/3 octave bandwidth a
49、t standard frequencies, an ideal filtered pink noise signal will be attenuated 1,l dB at 200 Hz and 0,9 dB at 4 kHz compared to a non-filtered pink noise signal. b) where digital filters are used the details of a) above applies, but with the 3 dB attenuation points set at 225 Hz and 3 563 Hz instead of 200 Hz and 3 800 Hz TR 101 1491. ETSI - STD-ETSI TR LO1 182-ENGL 1998 D 3400855 032bL75 b82 D 9 200 Hz 3800 Hz TR 1 O1 182 V1.l.l (1 99847) -3d .I B - a . ctave L . 1 L /=: Figure 2: Response for band-limiting filte
