Integrated Services Digital Network (ISDN); Basic User-Network Interface (UNI); Part 1: Layer 1 specification

This second edition of ETS 300 012 will incorporate the test suite specification and referenced material from ITU-T I.430

Digitalno omrežje z integriranimi storitvami (ISDN) – Osnovni vmesnik uporabnik-omrežje (UNI) – 1. del: Specifikacija prve plasti

General Information

Status
Published
Publication Date
30-Nov-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-2003
Due Date
01-Dec-2003
Completion Date
01-Dec-2003

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digitalno omrežje z integriranimi storitvami (ISDN) – Osnovni vmesnik uporabnik-omrežje (UNI) – 1. del: Specifikacija prve plastiIntegrated Services Digital Network (ISDN); Basic User-Network Interface (UNI); Part 1: Layer 1 specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:ETS 300 012-1 Edition 2SIST ETS 300 012-1 E2:2003en01-december-2003SIST ETS 300 012-1 E2:2003SLOVENSKI

STANDARD
SIST ETS 300 012-1 E2:2003

EUROPEANETS 300 012-1TELECOMMUNICATIONOctober 1998STANDARDSecond EditionSource: TMReference: RE/TM-03038-1ICS:33.020Key words:Basic, ISDN, layer 1, transmission, UNI, rateIntegrated Services Digital Network (ISDN);Basic User Network Interface (UNI);Part 1: Layer 1 specificationETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEInternet: secretariat@etsi.fr - http://www.etsi.fr - http://www.etsi.orgTel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1998. All rights reserved.SIST ETS 300 012-1 E2:2003

Page 2ETS 300 012-1: October 1998Whilst 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 Standards Making Support Dept." at the address shown on the title page.SIST ETS 300 012-1 E2:2003

Page 3ETS 300 012-1: October 1998ContentsForeword.......................................................................................................................................................91Scope................................................................................................................................................112Normative references........................................................................................................................113Definitions, symbols and abbreviations.............................................................................................123.1Definitions..........................................................................................................................123.1.1General definitions........................................................................................123.1.2Definition of services.....................................................................................123.1.3Primitives between layer 1 and other entities................................................133.1.4Modes of operation........................................................................................133.1.5Definition of states.........................................................................................133.1.5.1TE states.............................................................................133.1.5.2NT States.............................................................................143.2Symbols.............................................................................................................................143.3Abbreviations.....................................................................................................................144Primitives associated with layer 1.....................................................................................................155Wiring configurations and location of interface points.......................................................................155.1General..............................................................................................................................155.1.1Point-to-point configuration...........................................................................155.1.2Point-to-multipoint configuration....................................................................155.1.3 Location of the interfaces.............................................................................155.2Support of wiring configurations.........................................................................................165.2.1 Wiring polarity integrity.................................................................................165.2.2NT and TE associated wiring........................................................................166Functional characteristics..................................................................................................................176.1Interface functions.............................................................................................................176.1.1B-channel......................................................................................................176.1.2Bit timing........................................................................................................176.1.3Octet timing...................................................................................................176.1.4Frame alignment...........................................................................................176.1.5D-channel......................................................................................................176.1.6D-channel access procedure........................................................................176.1.7Power feeding...............................................................................................176.1.8Deactivation...................................................................................................176.1.9Activation.......................................................................................................176.2Interchange circuits............................................................................................................176.3Connected/disconnected indication...................................................................................186.3.1TEs powered across the interface.................................................................186.3.2TEs not powered across the interface...........................................................186.3.3Indication of connection status......................................................................186.4Frame structure.................................................................................................................196.4.1Bit rate...........................................................................................................196.4.2Binary organization of the frame...................................................................196.4.2.1TE to NT..............................................................................196.4.2.2NT to TE..............................................................................206.4.2.3Relative bit positions............................................................206.5Line code...........................................................................................................................206.6Timing considerations........................................................................................................217Interface procedures.........................................................................................................................217.1D-channel access procedure.............................................................................................217.1.1Interframe (layer 2) time fill............................................................................21SIST ETS 300 012-1 E2:2003

Page 4ETS 300 012-1: October 19987.1.2D-echo channel.............................................................................................217.1.3D-channel monitoring....................................................................................217.1.4Priority mechanism.......................................................................................217.1.5Collision detection.........................................................................................227.2Activation/deactivation.......................................................................................................227.2.1Activate primitives.........................................................................................227.2.2Deactivate primitives.....................................................................................227.2.3Management primitives.................................................................................227.2.4Valid primitive sequences.............................................................................237.3Signals...............................................................................................................................257.4Activation/deactivation procedure for TEs.........................................................................257.4.1General TE procedures................................................................................257.4.2Specification of the procedure......................................................................267.5Activation/deactivation for NTs..........................................................................................267.5ANon-activating/non-deactivating NTs................................................................................267.6Timer values......................................................................................................................267.7Activation times.................................................................................................................267.7.1TE activation times.......................................................................................267.7.2NT activation times.......................................................................................307.8Deactivation times.............................................................................................................318Frame alignment procedures............................................................................................................318.1Frame alignment procedure in the direction NT to TE......................................................318.1.1Loss of frame alignment...............................................................................318.1.2Frame alignment...........................................................................................318.2Frame alignment in the direction TE to NT.......................................................................318.2.1Loss of frame alignment...............................................................................318.2.2Frame alignment...........................................................................................328.3Multiframing.......................................................................................................................328.4Idle channel code on the B channels................................................................................329Electrical characteristics...................................................................................................................329.1Bit rate...............................................................................................................................329.1.1Nominal rate.................................................................................................329.1.2Tolerance......................................................................................................329.2Jitter and bit-phase relationship between TE input and output.........................................329.2.1Test configurations.......................................................................................329.2.2Timing extraction jitter..................................................................................339.2.3Total phase deviation input to output............................................................349.3NT jitter characteristics......................................................................................................369.4Termination of the line.......................................................................................................369.5Transmitter output characteristics.....................................................................................369.5.1Transmitter output impedance......................................................................369.5.1.1NT transmitter output impedance.......................................369.5.1.2TE transmitter output impedance........................................379.5.2Test load impedance....................................................................................379.5.3Pulse shape and amplitude (binary ZERO)..................................................379.5.3.1Pulse shape........................................................................379.5.3.2Nominal pulse amplitude.....................................................389.5.4Pulse unbalance...........................................................................................389.5.4.1Pulse amplitude when transmitting a high density pattern..389.5.4.2Pulse unbalance of an isolated couple of pulses................399.5.5Voltage on other test loads (TE only)...........................................................399.5.5.1400 W load...........................................................................399.5.5.25,6 W load............................................................................399.5.6Unbalance about earth.................................................................................399.5.6.1Longitudinal conversion loss...............................................399.5.6.2Output signal balance.........................................................429.6Receiver input characteristics...........................................................................................429.6.1Receiver input impedance............................................................................429.6.1.1TE receiver input impedance..............................................429.6.1.2NT receiver input impedance..............................................429.6.2Receiver sensitivity - Noise and distortion immunity.....................................42SIST ETS 300 012-1 E2:2003

Page 5ETS 300 012-1: October 19989.6.2.1TEs......................................................................................429.6.2.2NTs for short passive bus (fixed timing)..............................439.6.2.3NTs for both point-to-point and short passive busconfigurations (adaptive timing)...........................................449.6.2.4NTs for extended passive bus wiring configurations...........449.6.2.5NTs for point-to-point configurations only............................449.6.3NT receiver input delay characteristics.........................................................459.6.3.1NT for short passive bus......................................................459.6.3.2NT for both point-to-point and passive bus..........................459.6.3.3NT for extended passive bus...............................................459.6.3.4NT for point-to-point only.....................................................459.6.4Unbalance about earth..................................................................................459.7Isolation from external voltages.........................................................................................469.8Interconnecting media characteristics...............................................................................469.9Standard ISDN basic access TE cord...............................................................................4610Power Feeding..................................................................................................................................4610.1Reference configuration.....................................................................................................4610.1.1Functions specified at the access leads........................................................4810.1.2Provision of power sources and sinks...........................................................4810.2Power available from NT...................................................................................................4810.2.1Power source 1 normal and restricted mode................................................4810.2.2Minimum voltage at NT from power source 1...............................................4910.2.2.1Normal power conditions.....................................................4910.2.2.2Restricted power conditions.................................................4910.2.3Minimum voltage of power source 2.............................................................4910.3Power available at a TE.....................................................................................................4910.3.1Power source 1 - phantom mode..................................................................4910.3.1.1Normal power conditions.....................................................4910.3.1.2Restricted power conditions.................................................4910.3.2Power source 2 - optional third pair...............................................................4910.3.2.1Normal power conditions.....................................................4910.3.2.2Restricted power conditions.................................................4910.4Power source 1 consumption............................................................................................5010.4.1Normal power conditions...............................................................................5010.4.2Restricted power conditions..........................................................................5010.4.2.1Power Available to a TE "designated" for restricted poweroperation..............................................................................5010.4.2.2Power available to "non-designated" TEs............................5110.5Galvanic isolation...............................................................................................................5110.6Current transient................................................................................................................5110.6.1Current/time limitations for TEs.....................................................................5110.6.2TE designed to minimize power disturbance.................................................5310.6.2.1Optimized current/time mask...............................................5310.6.2.2Alternative current/time mask for optimized TEs.................5510.6.3Power source switch-over.............................................................................5510.6.3.1Power source switch-over time............................................5510.6.3.2Restricted mode power source requirements underoverload conditions..............................................................5510.6.4Other TE requirements..................................................................................5510.6.4.1Minimum TE start-up current...............................................5510.6.4.2Protection against short term interruptions..........................5610.6.4.3Behaviour at the switch-over...............................................5610.6.5Other power source requirements.................................................................5710.6.5.1Power source 1 restricted....................................................5710.6.5.2Power source 1 normal........................................................5710.6.5.3Requirements for type (a) sources......................................5710.6.5.4Requirements for both types of sources..............................5710.6.5.4.1Switch-on surge capability....................5710.6.5.4.2TE connection surge capability.............5810.7Current unbalance.............................................................................................................5810.7.1Direct current unbalance...............................................................................5810.7.1.1dc unbalance of power source 1..........................................58SIST ETS 300 012-1 E2:2003

Page 6ETS 300 012-1: October 199810.7.1.2dc unbalance of power sink 1.............................................5810.7.1.3Differential resistance in a pair of the installation wiring.....5910.7.2Current unbalance in a pair..........................................................................5910.8Additional requirements for an APS..................................................................................6010.8.1Power available for an APS..........................................................................6010.8.2APS switch-on time.......................................................................................6010.8.3APS switch-off time.......................................................................................6010.8.4APS power consumption when off................................................................6010.8.5Dynamic behaviour of an APS......................................................................6010.9Additional requirements for NT1 restricted mode source for compatibility with an APS...6010.9.1Power source 1 restricted mode back-off.....................................................6010.9.2Power source 1 restricted mode power up...................................................6110.9.3NT1 power consumption from APS normal mode........................................6111Interface connector contact..............................................................................................................61Annex A (informative):Wiring configurations and round trip delay considerations used as a basis forelectrical characteristics.....................................................................................62A.1Introduction.......................................................................................................................................62A.2Wiring configurations........................................................................................................................62A.2.1Point-to-multipoint.............................................................................................................62A.2.1.1Short passive bus (Figure A.1).....................................................................62A.2.1.2Extended passive bus (Figure A.2)...............................................................63A.2.2Point-to-point (Figure A.3).................................................................................................63Annex B (normative):Test configurations............................................................................................65Annex C (normative):Test loopbacks defined for the basic UNI..........................................................67C.1Introduction.......................................................................................................................................67C.2Loopback mechanism definitions.....................................................................................................67C.3Test loopback reference configuration.............................................................................................68C.4Test loopback characteristics...........................................................................................................69Annex D (normative):Additional requirements applicable to the (explicit) S reference point...............70D.1Introduction.......................................................................................................................................70D.2References.......................................................................................................................................70D.3Definitions.........................................................................................................................................70D.3.1Private Network Termination (PNT)..................................................................................70D.3.2Terminal Equipment (TE)..................................................................................................70D.4Conformance....................................................................................................................................70D.5Requirements...................................................................................................................................70D.6Provision of power............................................................................................................................70Annex E (informative):SDL representation of a possible implementation of the D-channel access.....71Annex F (informative):SDL representation of activation/deactivation procedures for TEs and NTs.....72F.1SDL representation of activation/deactivation procedures for TEs...................................................72F.2SDL representation of activation/deactivation procedures for NTs..................................................72SIST ETS 300 012-1 E2:2003

Page 7ETS 300 012-1: October 1998Annex G (informative):Multiframing mechanism....................................................................................80G.1Multiframing.......................................................................................................................................80G.1.1General mechanism...........................................................................................................80G.1.2Q-bit position identification algorithm.................................................................................80G.1.3TE multiframe identification...............................................................................................81G.2S-channel structuring algorithm........................................................................................................81Bibliography.................................................................................................................................................83History..........................................................................................................................................................84SIST ETS 300 012-1 E2:2003

Page 8ETS 300 012-1: October 1998Blank pageSIST ETS 300 012-1 E2:2003

Page 9ETS 300 012-1: October 1998ForewordThis second edition European Telecommunication Standard (ETS) has been produced by the ETSITechnical Committee Transmission and Multiplexing (TM).This ETS concerns the basic User Network Interface (UNI) for the Integrated Services Digital Network(ISDN) and consists of 7 parts as follows:Part 1:"Layer 1 specification";Part 2:"Implementation Conformance Statement (ICS) and Implementation eXtra Information forTesting (IXIT) specification for interface IA";Part 3:"Implementation Conformance Statement (ICS) and Implementation eXtra Information forTesting (IXIT) specification for interface IB";Part 4:"Conformance test specification for interface IA";Part 5:"Conformance test specification for interface IB";Part 6:"Abstract Test Suite (ATS) specification for interface IA";Part 7:"Abstract Test Suite (ATS) specification for interface IB";and is based on ITU-T Recommendation I.430 [10].Transposition datesDate of adoption of this ETS:18 September 1998Date of latest announcement of this ETS (doa):31 January 1999Date of latest publication of new National Standardor endorsement of this ETS (dop/e):31 July 1999Date of withdrawal of any conflicting National Standard (dow):31 July 1999SIST ETS 300 012-1 E2:2003

Page 10ETS 300 012-1: October 1998Blank pageSIST ETS 300 012-1 E2:2003

Page 11ETS 300 012-1: October 19981ScopeThis part 1 of ETS 300 012 specifies requirements for the ISDN basic rate UNI including the physical,electrical and functional characteristics and the information exchange with higher layers. This ensures thatinterface implementations in an ISDN equipment for use with ISDN basic access is portable within Europewith regard to layer 1 interface aspects and that interworking with higher layer protocols for ISDN issupported.This ETS is applicable to equipment having interface IA or IB for the connection to the ISDN basic accessintended to be installed on customer premises according to ITU-T Recommendation I.411 [9], this ETS isfor application to interfaces at reference points S, T and S/T (coincident S and T) of the ISDN referenceconfiguration.For the case where this ETS is applied to the T and the S/T reference point, the main body of this part 1 ofthe ETS and the parts 6 and 7 are normative.For the case where this ETS is applied to the S reference point, annex A to this part 1 of the standard isalso normative.This ETS does not specify:-safety requirements;-interface or equipment overvoltage protection requirements;-immunity requirements against electromagnetic interference;-emission limitation requirements.2Normative referencesThis ETS incorporates by dated and undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this ETS only when incorporated in it by amendment or revision. For undated references the

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