1、 ETSI TS 101 952-2 V1.1.1 (2010-11)Technical Specification Access, Terminals, Transmission and Multiplexing (ATTM);Access network xDSL splittersfor European deployment;Part 2: Generic specification of xDSL overISDN splitters and xDSL universal splittersETSI ETSI TS 101 952-2 V1.1.1 (2010-11)2Referen
2、ce RTS/ATTM-06011 Keywords ADSL, ADSL2, ADSL2plus, ISDN, POTS, splitter VDSL, VDSL1, VDSL2 ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfectur
3、e de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versio
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6、asp 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 2010. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPH
7、ON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of
8、the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 101 952-2 V1.1.1 (2010-11)3Contents Intellectual Property Rights 6g3Foreword . 6g3Introduction 7g31 Scope 8g32 References 8g32.1 Normative references . 8g32.2 Informative
9、references 9g33 Definitions, symbols and abbreviations . 10g33.1 Definitions 10g33.2 Symbols 11g33.3 Abbreviations . 12g34 General functional description of xDSL over ISDN splitters and universal splitters . 13g34.1 Functional diagram . 14g34.2 High pass filter . 15g35 Circuit definitions, testing c
10、onditions and methods . 15g35.1 DC and ringing testing conditions 15g35.1.1 Polarity independence . 15g35.1.2 DC feeding voltage and current 15g35.1.3 DC feeding and loading bridges . 16g35.1.4 Ringing signals and the DC added to the ringing . 17g35.2 AC Terminating impedances ZAC. 17g35.2.1 ZRefDSL
11、and ZDSL-i(xDSL transceiver related) . 17g35.2.2 ZTand ZL(ISDN related) 17g35.2.3 ZLine(POTS and ISDN related) . 17g35.2.4 ZR(POTS related) . 17g35.2.5 ZRHF(POTS related) 18g35.2.6 ZOnHI(POTS related), Impedance On-hook High Impedance . 18g35.2.7 ZOnLI(POTS related), Impedance On-hook Low Impedance
12、19g35.2.8 ZOnHo(POTS related), Impedance On-hook 19g35.2.9 Zring(POTS related), Impedance load for ringing . 19g35.3 High pass filter implementation . 19g35.3.1 DCB capacitors as reference high pass filter 20g35.4 General transmission test set-ups . 20g35.4.1 General definition of the Insertion Loss
13、 (IL) measurement 20g35.4.2 POTS or ISDN signal loss test set-up: IL LINE port to TELE port 21g35.4.3 xDSL signal isolation: TELE port to xDSL port 21g35.4.4 Insertion Loss test set-up LINE port to xDSL port . 22g35.4.5 General definition of the Return Loss . 24g35.4.6 Return Loss test set-up at LIN
14、E port and TELE port 25g35.5 Unbalance measurement . 25g35.5.1 General definition of Longitudinal Conversion Loss 26g35.5.2 General definition of Longitudinal Conversion Transfer Loss . 26g35.5.3 LCL and LCTL test set-up 26g35.6 Noise measurement 28g35.6.1 Psophometric noise in the POTS Band . 28g35
15、.6.2 Noise in the ISDN Band . 28g35.6.3 Noise in the xDSL Band . 28g35.7 Common Mode Rejection Ratio measurement . 28g36 Splitter requirements 29g36.1 DC requirements 29g36.1.1 DC resistance to earth . 29g36.1.2 DC isolation resistance between A-wire and B-wire 29g3ETSI ETSI TS 101 952-2 V1.1.1 (201
16、0-11)46.1.3 DC series resistance 29g36.1.4 DC signalling (for universal splitter only) 29g36.2 Ringing frequency requirements for the LPF (for universal splitter only) . 30g36.2.1 Total harmonic distortion at 25 Hz and 50 Hz 30g36.3 POTS and ISDN band IL requirements for the LPF . 30g36.3.1 POTS pas
17、s band loss requirements (for universal splitter only) . 30g36.3.1.1 On-hook POTS pass band insertion loss and distortion 30g36.3.1.2 Off-hook POTS pass band insertion loss 31g36.3.1.3 Off-hook POTS pass band insertion loss distortion 31g36.3.2 ISDN pass band insertion loss 31g36.4 POTS and ISDN ban
18、d return loss requirements for the LPF 32g36.4.1 POTS band return loss 32g36.4.2 Pass band return loss for ISDN . 32g36.5 Requirements relating to metering pulses at 12 kHz or 16 kHz (for universal splitter only) (optional) . 33g36.6 Unbalance about earth 34g36.6.1 Unbalance of the low pass part . 3
19、4g36.6.2 Unbalance of the high pass part 34g36.7 xDSL band related requirements 35g36.7.1 xDSL band isolation: IL between TELE port and xDSL port . 36g36.7.2 xDSL signal loss: IL between LINE port and xDSL port . 36g36.8 Noise 37g36.8.1 POTS band audible noise level requirements . 37g36.8.2 ISDN ban
20、d noise level requirements 37g36.8.3 xDSL band noise level requirements 37g36.9 Intermodulation distortion 37g36.9.1 POTS band intermodulation distortion requirements (mandatory) . 37g36.9.2 ISDN band intermodulation distortion requirements (F.F.S.) . 38g36.9.3 xDSL band intermodulation distortion r
21、equirements (optional) . 38g36.10 Delay distortion 39g36.10.1 POTS band delay distortion 39g36.10.2 ISDN band delay distortion 39g36.11 POTS/ISDN transient effects (optional) . 39g36.11.1 POTS transient effects (optional) 39g36.11.2 ISDN transient effects (optional) 40g36.12 Requirements for Common
22、Mode rejection (optional). 40g36.13 Requirements for Crosstalk at the LE (optional) 40g3Annex A (normative): xDSL specific information . 41g3A.1 ZDSL-iand ZRefDSLfor specific xDSL variants . 41g3A.1.1 Generic definition of ZDSL-i, using CDCB, ZRefDSL, CDSL, LDSL. 41g3A.1.2 ZDSL-i for ADSL over ISDN/
23、Universal . 42g3A.1.3 ZDSL-ifor European VDSL1 over ISDN/Universal, with US0 43g3A.1.4 ZDSL-iand ZDSL-i2for VDSL2 over ISDN with US0 43g3A.2 General requirements for ISDN and universal splitters . 43g3A.3 Specific requirements for passive splitters for ADSL over ISDN variants 46g3A.4 Specific requir
24、ements for passive splitters for VDSL1 over ISDN variants 47g3A.5 Specific requirements for passive splitters for VDSL2 over ISDN variants at the TE side . 47g3A.6 Specific requirements for passive splitters for VDSL2 over ISDN variants at the LE side . 48g3Annex B (informative): Evolution of the do
25、cuments . 49g3Annex C (informative): Use of the present document for splitters at the cabinet 50g3C.1 Splitters on POTS lines at the cabinet 50g3C.2 Splitters for ISDN lines at the cabinet 50g3Annex D (informative): IL and RL caused by the ZDSL-iin the POTS or ISDN band 51g3ETSI ETSI TS 101 952-2 V1
26、.1.1 (2010-11)5Annex E (informative): IL Measurement inside ZDSL-i52g3E.1 IL TELE port to xDSL port (clause 5.4.3) inside ZDSL-i. 52g3E.2 IL LINE port to xDSL port (clause 5.4.4) inside ZDSL-i53g3Annex F (informative): Return Loss measurements: practical diagrams. 55g3Annex G (informative): Insertio
27、n Loss measured with feeding and loading bridges . 56g3Annex H (informative): Dynamic tests of splitters in the presence of xDSL transceivers . 57g3H.1 General description of TR-127 of the Broadband Forum. 57g3H.2 Dynamic ISDN tests needed (in a revision of TR-127) 57g3Annex I (informative): Optimal
28、 transmission of POTS or ISDN signals and xDSL signals and their separation . 58g3Annex J (informative): More on feeding and loading bridges . 59g3Annex K (informative): Additional requirements for Active Splitter (F.F.S.) 60g3Annex L (informative): Measuring when CDCBcapacitors are merged with ZDSL
29、-i61g3L.1 Adapting clause 5.4.2 . 61g3L.2 Adapting clause 5.4.3 . 62g3L.3 Adapting clause 5.4.4 . 62g3L.4 Adapting clause 5.4.6 . 64g3Annex M (informative): Measuring IL of the splitter low pass in the xDSL band 66g3Annex N (informative): Bibliography . 67g3History 68g3ETSI ETSI TS 101 952-2 V1.1.1
30、(2010-11)6Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectua
31、l Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigatio
32、n, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification
33、 (TS) has been produced by ETSI Technical Committee Access, Terminals, Transmission and Multiplexing (ATTM). The present document is part 2 of a multi-part deliverable covering Access network xDSL Transmission Filters, as identified below: Part 1: “Generic specification of xDSL over POTS splitters“;
34、 Part 2: “Generic specification of xDSL over ISDN splitters and xDSL universal splitters“; Part 3: “Generic specification of distributed filters for xDSL over POTS“; Part 4: “Additional specification for dynamic distributed filters for xDSL over POTS“ (under study). NOTE 1: The present document is d
35、erived by merging and complementing 3 older, existing specifications, which were numbered according to the older structure of the splitter documents. Before the publication of the 3 or 4 parts as described above, the TS 101 952 was composed of 2 parts, which discriminated between ADSL and VDSL, with
36、 several subparts. For reasons of simplicity the TS is now restructured as a set of only 3 (potentially 4) documents, intended for both ADSL and VDSL when applicable. The older structure of the documents is explained in informative Annex B. NOTE 2: Useful information on splitter tests may be found i
37、n TR 101 953-1-1 i.3, TR 101 953-1-2 i.4, TR 101 953-1-3 i.5, TR 101 953-2-1 i.6, TR 101 953-2-2 i.7 and TR 101 953-2-3 i.8. These documents are linked to the previous versions of the splitter specifications. The TR 101 953 multi-part i.3, i.4, i.5, i.6, i.7 and i.8 e.g. describe the combination of
38、the AC testing conditions of the test set-ups with the DC conditions controlled via feeding and loading bridges. The TR 101 953 multi-part i.3, i.4, i.6 and i.7 are intended for splitter over POTS, but also applicable to universal splitters. TR 101 953-1-3 i.5 and TR 101 953-2-3i.8 are intended for
39、splitters over ISDN. If there is a discrepancy between the present document and the older TR 101 953 series of documents, the present document prevails. The present document is fully in line with initiative “eEurope 2002 - An Information Society For All“, under “The contribution of European standard
40、ization to the eEurope Initiative, A rolling Action Plan“ especially under the key objective of a cheaper, faster and secure Internet. ETSI ETSI TS 101 952-2 V1.1.1 (2010-11)7Introduction Remarks on and limitations of the present document The present document covers all xDSL system variants, such as
41、 ADSL1, ADSL2, ADSL2plus, VDSL1 and VDSL2. It is applicable at the Local Exchange (LE) (i.e. network) side of the line at the LE or at the cabinet and at the Terminal Equipment (TE) (i.e. user) side of the line. A number of limitations and remarks should be listed: 1) The use of the present document
42、 is extended to splitters at the cabinet for both the POTS case (universal splitters) and the ISDN-only case, as explained in Annex C. However, this extension has to be applied with care in the case of ISDN. But, as explained in Annex C also, there is evidence that the splitters tested according to
43、the present document will perform satisfactorily when used at the cabinet. 2) The present document covering the xDSL over ISDN or the Universal splitters was gained from the experience with passive and static xDSL splitters, the original state of the art for this application. Furthermore, the experi
44、ence was gained with identical requirements at either side of the line. Therefore, the requirements in the present document are primarily intended for passive and static filters, with identical requirements for the LE side and the TE side of the line. However, in the note under table A.3 an optional
45、 diversification between splitters requirements at the two sides of the line is described. For the TE side splitters an optional variant could be allowed with better downstream protection, with less IL in the upstream band and more IL in the downstream band. Similar differentiation between LE and TE
46、 is possible for the balance requirements; see the note under table A.10. 3) The present document covering xDSL over POTS splitters is limited to passive and static splitters. There are other classes of filters possible, besides passive and static splitters. Such active and/or dynamic filters are co
47、mposed of other elements than passive components. Active/dynamic splitters require different and additional requirements and test methods to be specified. The full specification of requirements for active/dynamic splitters is F.F.S. (for further study). 4) For certain static properties in the presen
48、t document it is possible to relax the requirements and prove in dynamic tests that the splitter performs sufficiently well. These dynamic tests are compiled in TR-127, by the Broadband Forum. The use of the TR-127 methodology for this purpose is outside the scope of this version of the present docu
49、ment. The TR-127 could prove useful to introduce splitters with reduced complexity, or active and/or dynamic splitters. The TR-127 methodology for POTS splitters is now published i.16. A tutorial text on TR-127 is given in informative Annex H. Finalizing splitter tests in the present document based on TR-127 for ISDN signals and for ISDN and DSL interaction is F.F.S., as the version for ISDN splitters is still under definition in the Broadband Forum. 5) To test distortion, noise and other requirements in the present document the TR-127 met
