1、 ETSI EN 300 132-2 V2.5.1 (2016-10) Environmental Engineering (EE); Power supply interface at the input to telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc) EUROPEAN STANDARD ETSI ETSI EN 300 132-2 V2.5.1 (2016-10) 2 Reference REN/EE-0252 Keywords interfac
2、e, power supply 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-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be dow
3、nloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any exist
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6、eople/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without th
7、e written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
8、 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 300 132-2 V2.5.1 (2016-10) 3 Contents Intellectual Property Rights 5g3Foreword . 5
9、g3Modal verbs terminology 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Definitions, symbols and abbreviations . 8g33.1 Definitions 8g33.2 Symbols 8g33.3 Abbreviations . 9g34 Requirements 9g34.0 Interface “A“. 9g34.1 Nominal voltage . 10g34.2 Normal serv
10、ice voltage range at interface “A“ . 10g34.3 Abnormal service voltage range at interface “A“ . 11g34.3.1 Abnormal service voltage range under steady state conditions 11g34.3.2 Abnormal conditions: voltage variations, dips and short interruptions . 11g34.3.3 Voltage transients . 11g34.3.3.1 Voltage t
11、ransient due to short-circuit and protective device clearance . 11g34.3.3.2 Short voltage transient due to switching and lightning . 12g34.3.4 Recovery from voltage transients . 12g34.4 Voltage changes due to the regulation of the power supply . 13g34.5 Power supply protection at interface “A“ . 13g
12、34.6 Maximum current drain 13g34.7 Inrush Current on connection of interface “A“ . 14g34.7.1 Limits 14g34.7.2 Measurements . 15g34.8 Conducted immunity requirements of the telecommunications equipment at interface “A“: narrowband noise . 16g34.9 Conducted emissions requirements of the telecommunicat
13、ions and datacom (ICT) equipment at interface “A“ . 18g35 Earthing and bonding . 19g3Annex A (informative): Identification of interface “A“ 20g3Annex B (informative): -60 VDCsystems 21g3Annex C (informative): Guide for measuring inrush current and for transferring the recorded pulses onto the limit
14、chart . 22g3C.1 Measurement 22g3C.2 Pulse waveform transformation 22g3C.3 Measurement of inrush current with filter capacitor current pulses . 25g3Annex D (informative): Test arrangements for the injection of electrical noise at interface “A“ 28g3Annex E (informative): Wideband noise 29g3E.0 Wideban
15、d noise 29g3E.1 Emission of wideband noise . 29g3E.1.1 Assessment of wideband noise . 29g3ETSI ETSI EN 300 132-2 V2.5.1 (2016-10) 4 E.2 How to calculate wideband emission . 29g3Annex F (informative): Protection dimensioning 33g3Annex G (informative): Effects of protective device operation transients
16、 in the power distribution . 34g3Annex H (informative): Bibliography . 35g3History 36g3ETSI ETSI EN 300 132-2 V2.5.1 (2016-10) 5 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential
17、IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual 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
18、available on the ETSI Web server (https:/ipr.etsi.org/). 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 ETSI SR 000 314 (or the updates on the ETSI Web server) whic
19、h are, or may be, or may become, essential to the present document. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Environmental Engineering (EE). The present document concerns the requirements for the interface between telecommunications and datacom (ICT) equipme
20、nt and its power supply, and includes requirements relating to its stability and measurement. Various other references and detailed measurement and test arrangements are contained in informative annexes. The present document is part 2 of a multi-part deliverable covering Environmental Engineering (E
21、E); Power supply interface at the input to telecommunications and datacom (ICT) equipment, as identified below: Part 1: “Operated by alternating current (ac) derived from direct current (dc) sources“; Part 2: “Operated by -48 V direct current (dc)“; Part 3: “Operated by rectified current source, alt
22、ernating current source or direct current source up to 400 V“. National transposition dates Date of adoption of this EN: 5 October 2016 Date of latest announcement of this EN (doa): 31 January 2017 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 31 July 2017 Da
23、te of withdrawal of any conflicting National Standard (dow): 31 July 2017 Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rule
24、s (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI EN 300 132-2 V2.5.1 (2016-10) 6 1 Scope The present document contains requirements and measurements methods for the physical interface that is
25、situated between the power supply system(s) and the power consuming telecommunications and datacom (ICT) equipment; this point is called interface “A“ as defined in clause 4. The purpose of the present document is to use a power supply system with the same characteristics for all telecommunications
26、and datacom (ICT) equipment defined in the area of application: - to facilitate inter working of different (types of) load units; - to facilitate the standardization of telecommunications and datacom (ICT) equipment; - to facilitate the installation, operation and maintenance in the same network of
27、telecommunications and datacom (ICT) equipment and systems from different origins. The present document aims at providing electrical compatibility between the power supply equipment and the power consuming telecommunications and datacom (ICT) equipment, and also between different system blocks conne
28、cted to the same power supply. The requirements are defined for: - the output of the power supply equipment or power supply installation of telecommunications centres providing power at the interface “A“; - the power supply input of any type of telecommunications and datacom (ICT) equipment installe
29、d at telecommunication centres that are connected to interface “A“ powered by DC; - any type of telecommunications and datacom (ICT) equipment, installed in access networks and customers premises, the DC interface “A“ of which is also used by equipment requiring a supply to the present document. - a
30、ny type of telecommunication and datacom (ICT) equipment powered by DC, used in the fixed and mobile networks installed in different locations as building, shelter, street cabinet. Disturbances on the power supply interface “A“ relating to the continuous wave phenomena below 20 kHz are covered withi
31、n the present document. The present document does not cover safety requirements, they are covered by relevant safety standards. The present document does not cover EMC requirements, they are covered by relevant EMC standards. NOTE 1: The present document is applicable only to -48 VDCpower supply int
32、erfaces. However, during a transitional period, other DC voltages may be used in existing installations. Annex B gives guidance on working in conjunction with existing -60 VDCsupply systems. NOTE 2: The DC voltage at interface “A“ may be derived from the AC primary supply. The DC supply may incorpor
33、ate a backup battery 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the refer
34、enced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at https:/docbox.etsi.org/Reference/. ETSI ETSI EN 300 132-2 V2.5.1 (2016-10) 7 NOTE: While any hyperlinks included in this clause were valid a
35、t the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. 1 CENELEC EN 60269-1: “Low-voltage fuses - Part 1: General requirements“. 2 CENELEC EN 60934: “Circuit-breakers for equipment (CBE)
36、“. 3 Void. 4 Void. 5 CENELEC EN 61000-4-5: “Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test“. 6 Void. 7 CENELEC EN 61000-4-29: “Electromagnetic compatibility (EMC) -Part 4-29: Testing and measurement techniques -Voltage dips, short interruptio
37、ns and voltage variations on d.c. input power port immunity tests“. 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific referen
38、ces, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the application of
39、 the present document but they assist the user with regard to a particular subject area. i.1 Recommendation ITU-T Q.551: “Transmission characteristics of digital exchanges“. i.2 Recommendation ITU-T Q.552: “Transmission characteristics at 2-wire analogue interfaces of digital exchanges“. i.3 Recomme
40、ndation ITU-T Q.553: “Transmission characteristics at 4-wire analogue interfaces of digital exchanges“. i.4 Recommendation ITU-T Q.554: “Transmission characteristics at digital interfaces of digital exchanges“. i.5 ETSI TR 100 283: “Environmental Engineering (EE); Transient voltages at Interface “A“
41、 on telecommunications direct current (dc) power distributions“. i.6 US Department of Defence MIL-STD-461E: “Requirements for the control of electromagnetic interference characteristics of subsystems and equipment“. i.7 ETSI EN 300 253: “Environmental Engineering (EE); Earthing and bonding of ICT eq
42、uipment powered by -48 VDC in telecom and data centres“. i.8 Recommendation ITU-T O.41: “Psophometer for use on telephone-type circuits“. i.9 IEC 60050-601: “International Electrotechnical Vocabulary. Chapter 601: Generation, transmission and distribution of electricity - General“ (Area 826 “Electri
43、cal installations“, section 826-11 “Voltages and currents“). ETSI ETSI EN 300 132-2 V2.5.1 (2016-10) 8 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: abnormal service voltage range: range of steady-state v
44、oltage over which the equipment will not be expected to maintain normal service but will survive undamaged customer premises: any location which is the sole responsibility of the customer fully equipped equipment: configuration that corresponds to the maximum power consumption measured at -48 VDCwit
45、h the equipment in operating conditions (e.g. not in standby mode) NOTE: When there are several fully equipped configurations because of different combinations of possible boards, the configuration with the boards that gives the highest power consumption should be considered. interface “A“: terminal
46、s at which the power supply is connected to the system block NOTE 1: See also figure 1 and annex A. NOTE 2: This is a functional definition and not an exact depiction of the physical location. malfunction: termination of the normal service maximum steady state input current (Im): maximum steady stat
47、e input current, stated by the manufacturer, for a fully equipped equipment under test connected to interface “A“ at nominal voltage nominal voltage: value of the voltage by which the electrical installation or part of the electrical installation is designated and identified i.9 normal operating vol
48、tage range: voltage range at interface “A“ where the system operates most of the time, e.g. in general linked to battery floating voltage normal service: service mode where telecommunications and datacom (ICT) equipment operates within its specification which includes a defined restart time after ma
49、lfunction or full interruption normal service voltage range: range of steady-state voltages over which the equipment will maintain normal service operating voltage: value of the voltage under normal conditions, at a given instant and a given point of the system i.9 power supply: power source to which telecommunications equipment is intended to be connected system block: functional group of equipment depending for its operation and performance on its connection to the same power supply NOTE: A system block may consist of equipment or a func
