ANSI T1.413-1995
`
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`for.Telecommunications —
`
`Network and Customer
`
`Installation Interfaces —
`Asymmetric Digital Subscriber
`Line (ADSL) Metallic Interface
`
`
`
`ANSIT1.413-1995J
`
`‘* [W31 American National Standards Institute
`
`11 West 42nd Street
`
`New York, New York
`10036
`
`Dish
`Exhibit 1008, Page 1
`
`

`
`ANSl®
`T1.413-1995
`
`American National Standard
`for Telecommunications -
`
`Network and Customer Installation Interfaces —
`Asymmetric Digital Subscriber Line (ADSL) Metallic Interface
`
`Secretariat
`
`Alliance for Telecommunications Industry Solutions
`
`Approved August 18, 1995
`
`American National Standards Institute, Inc.
`
`Abstract
`
`This standard presents the electrical characteristics of the Asymmetric Digital Subscriber Line
`(ADSL) signals appearing at the network interface. The physical interface between the network
`and the customer installation is also described. The transport medium for the signals is a single
`twisted-wire pair that supports both Message Telecommunications Service (POTS) and full-duplex
`(simultaneous two—way) and simplex (from the network to the customer installation) digital ser-
`vices.
`
`This interface standard provides the minimal set of requirements for satisfactory transmission
`between the network and the customer installation. Equipment may be implemented with addition-
`al functions and procedures.
`
`Dish
`Exhibit 1008, Page 2
`
`

`
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`Standard
`
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`
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`By publication of this standard, no
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`'
`ty of this claim or of any patent
`'
`rights in connection therewith. Th
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`
`Published by
`
`American National Standards Institute
`11 West 42nd Street, New York, New York 10036
`
`Copyright ©1995 by Alliance for Telecommunications Industry Solutions
`All rights reserved.
`
`No part of this publication may be reproduced in any
`form, in an electronic retrieval system or othenivise,
`without prior written permission of the publisher.
`
`Printed in the United States of America
`
`APS3C1295/135
`
`Dish
`Exhibit 1008, Page 3
`
`

`
`Contents
`
`Page
`Foreword ........................................................................................................... ..vii
`
`Scope and purpose .....................................
`
`....................................... ..1
`
`Scope ................................................................................................... ..1
`Purpose ................................................................................................ ..1
`
`Normative references ........................................................................... ..2
`
`Definitions, abbreviations, acronyms and symbols ............................... ..3
`
`Definitions ............................................................................................. . .3
`
`Abbreviations, acronyms and symbols ................................................. ..3
`
`Reference models ................................................................................ ..6
`
`System reference model ....................................................................... ..6
`ATU-C transmitter reference model ...................................................... ..7
`ATU-R transmitter reference model ...................................................... ..8
`
`Transport capacity ................................................................................ ..9
`
`Simplex bearers .................................................................................... ..9
`Duplex bearers ................................................................................... ..13
`Combined options ............................................................................... ..14
`ADSL system overheads and aggregate data rates ........................... ..17
`Classification by ATM options .......... .. ................................................ ..21
`ATU-C functional characteristics ........................................................ ..22
`
`ATU-C input and output V interfaces .................................................. ..22
`Framing .............................................................................................. ..23
`Scramblers ......................................................................................... ..35
`Fonivard error correction ..................................................................... ..35
`
`Tone ordering ..................................................................................... ..36
`Constellation encoder — with trellis coding ......................................... ..37
`Constellation encoder — without trellis coding .................................... ..45
`Gain scaling ........................................................................................ ..45
`Modulation .......................................................................................... ..46
`
`Cyclic prefix ........................................................................................ ..47
`Transmitter dynamic range ................................................................. ..48
`Transmitter spectral response ............................................................ ..48
`Transmit power spectral density and aggregate power level ............. ..49
`
`ATU-R functional characteristics ........................................................ ..51
`
`ATU-R input and output data interfaces ................................... .._. ....... ..51
`Framing .............................................................................................. ..52
`Scramblers ......................................................................................... ..57
`Forward error correction ..................................................................... ..57
`
`Tone ordering ..................................................................................... ..57
`Constellation encoder — with trellis coding ................ .. ....................... ..57
`Constellation encoder — without trellis coding .................................... ..57
`Gain scaling ........................................................................................ ..58
`Modulation .......................................................................................... ..58
`
`Cyclic prefix ........................................................................................ ..59
`Transmitter dynamic range ................................................................. ..6O
`Transmitter spectral response ............................................................ ..61
`Transmit power spectral density and aggregate power level ............. ..62
`
`1
`.2
`
`1 1 1 2
`
`3
`
`3.1
`
`3.2
`
`4
`
`4.1
`4.2
`4.3
`
`5
`
`5.1
`5.2
`5.3
`5.4
`5.5
`6
`
`6.1
`6.2
`6.3
`6.4
`
`6.5
`6.6
`6.7
`6.8
`6.9
`
`6.10
`6.11
`6.12
`6.13
`
`7
`
`7.1
`7.2
`7.3
`7.4
`
`7.5
`7.6
`7.7
`7.8
`7 9
`
`Dish
`Exhibit 1008, Page 4
`
`

`
`Page
`ADSL — POTS splitter functional characteristics ................................ ..63
`ATU-Ft to service module (TSM) interface requirements .................... ..64
`
`TA interface definitions..........................................................................64
`TB interface definitions..........................................................................65
`
`Electrical characteristics ..................................................................... ..
`dc characteristics
`T
`Voice—band characteristics ................................................................. ..67
`ADSL band ...........................................................................................69
`ADSL noise the interference into circuit POTS................................... ..7O
`Operations and maintenance ...............................................................71
`Embedded operations channel (eoc) requirements............................ ..71
`in-service performance monitoring and surveillance .......................... ..78
`Metallic testing
`Out-of-service testing ...........................................................................84
`Requirements to support OAM of the segment between
`ATU-R and SM ................................................................................... ..84
`initialization ......................................................................................... ..87
`................................................... ..87
`Activation and acknowledgment — ATU-C .......................................... ..89
`Activation and acknowledgment — ATU-Fl .......................................... ..92
`Transceiver training — ATU-C ...............................................................93
`Transceiver training — ATU-R ...............................................................96
`Channel analysis — ATU-C ................................................................. ..98
`Channel analysis — ATU-R ............................................................... ..102
`Exchange — ATU-C........................................................................... ..105
`Exchange — ATU-R........................................................................... ..108
`On-line adaptation and reconfiguration ..............................................112
`The ADSL overhead control (aoc) channel ........................................112
`High-level on-line adaptation — Bit swapping......................................112
`Changes to data rates and reconfiguration ........................................115
`Signaling requirements.......................................................................115
`Loop plant, impairments, and testing..................................................116
`....................................... ..117
`ation in testing ...................................... ..119
`Test procedures..................................................................................121
`Physical characteristics ......................................................................127
`Wiring polarity integrity
`.................................................................. 127
`Connector
`Wiring requirements for a remotely located POTS splitter/ATU-R 28
`Maximum distance for a remotely located unit ...................................128
`Environmental conditions ...................................................................129
`Protection
`
`129
`
`Dish
`Exhibit 1008, Page 5
`
`

`
`Page
`
`ADSL sub-channel rate restrictions for default bearer rates............... ..1O
`
`ADSL sub—channel rate restrictions 2.048 Mbit/s (optional) ............... ..11
`
`Downstream ATM data cell bit rates................................................... ..12
`
`Maximum optional duplex bearer channels supported by
`transport class .................................................................................... ..14
`
`Optional duplex ATM data cell bit rates for LS2 ................................. ..14
`
`Bearer channel options by transport class for bearer rates based on
`downstream multiples of 1.536 Mbit/s ................................................ ..15
`
`Bearer channel options by transport class — Optional bearer rates
`based on downstream multiples of 2.048 Mbit/s ................................ ..16
`
`Bearer channel options by transport class for optional ATM
`bearer rates ........................................................................................ ..17
`
`internal overhead channel functions and rates................................... ..18
`
`Determination of aggregate downstream bit rate. .............................. ..19
`
`Determination of aggregate upstream bit rate .................................... ..2O
`
`Determination of aggregate bit rate for ATM transport ....................... ..21
`
`Interface data rates for duplex channels (default configurations) ....... ..23
`
`Definition of indicator bits, ATU-C transmitter .................................... ..25
`
`eoc frame stucture .............................................................................. ..26
`
`Default fast and interleaved data buffer allocations for ATU-C
`transmitter — Configurations for bearers based on multiples
`of 1.536 Mbit/s .................................................................................... ..27
`
`Default fast and interleaved data buffer allocations for ATU-C
`transmitter — Optional configurations for bearers based on
`multiples of 2.048 Mbit/s ..................................................................... ..28
`
`Default FEC coding parameters and interleave depth for ATU-C
`transmitter — Default configurations for bearers based on multiples
`of 1.536 Mbit/s ......................................................................................30
`
`Default FEC coding parameters and interleave depth for ATU-C
`transmitter — Optional configurations for bearers based on
`multiples of 2.048 Mbit/s ..................................................................... ..31
`
`Fast byte format.................................................................................. ..32
`
`Synch byte format, interleaved data buffer ......................................... ..33
`
`Convolutional interleaving example for N = 5, D = 2 .......................... ..36
`
`Forming the binary word u.................................................................. ..37
`
`Relation between 4-dimensional and 2-dimensional cosets............... ..42
`
`Determining the top 2 bits of X and Y................................................. ..44
`
`Default FEC coding parameters and interleave depth — ATU-R
`transmitter........................................................................................... ..54
`
`Dish
`Exhibit 1008, Page 6
`
`

`
`Page
`Fast byte format for synchronization — Fast data buffer ..................... ..56
`
`Synch byte format for synchronization — interleaved data buffer ....... ..57
`
`Minimum voice-band return losses at PTSN and POTS interfaces .... ..68
`
`eoc bit functions.................................................................................. ..71
`
`eoc opcode messages ........................................................................ ..74
`
`ATU-R data-registers.......................................................................... ..75
`
`Sync and no sync interpretation (downstream) .................................. ..85
`
`Sync and no sync interpretation for single SM ................................... ..85
`
`Sync and no sync interpretation for multiple SMs .............................. ..86
`
`Assignment of 48 bits of C-MSGS1 .................................................. ..100
`
`Assignment of 48 bits of R-MSGS1 .................................................. ..103
`Assignment of 48 bits of C-MSGS2 .................................................. ..106
`
`Bit pattern for C—RATES2 ................................................................. ..107
`Assignment of 32 bits of R-MSGS2 .................................................. ..109
`Bit pattern for Ft-RATES2 ................................................................. ..11O
`aoc message headers ...................................................................... ..112
`Bit swap request commands ............................................................ ..113
`Extended bit swap request ............................................................... ..114
`ATU classification by category ......................................................... ..117
`Loop sets and maximum rates for category I and category ll testing....117
`Crosstalk tests for category I ..............................................................123
`Crosstalk tests for category ll .............................................................123
`Test loops, interferers, and data rates for impulse tests for category l.....124
`Test loops, interferers, and data rates for impulse tests for category ll....124
`Test loops, interferers, and data rates for POTS tests for category I ....125
`Test loops, interferers, and data rates for POTS tests for category ii ...125
`Minimum test time for crosstalk ..........................................................126
`Pin assignments for 8-position jack and plug (RJ 31X) at U-R......... ..127
`Pin assignments for 8-position jack and plug at remote location........128
`
`ADSL functional reference model ......................................................... ..6
`ATU—C transmitter reference diagram ....................................................7
`ATU-R transmitter reference diagram ....................................................8
`ATU-C V interfaces (rates for default configuration).............................22
`ADSL supertrame structure — ATU-C transmitter .................................24
`
`Dish
`Exhibit 1008, Page 7
`
`

`
`Page
`“Fast” byte format — ATU-C transmitter — fast data buffer .................. ..25
`
`“Synch” byte format — ATU-C transmitter — interleaved data buffer .....26
`
`Fast data buffer — ATU-C transmitter ................................................. ..28
`
`Interleaved data buffer — ATU-C transmitter....................................... ..29
`
`Conversion of u to vand w ................................................................. ..38
`
`Finite state machine for Wei’s encoder .............................................. ..39
`
`Trellis diagram .................................................................................... ..40
`
`Constituent 2-dimensional cosets for Wei’s code ............................... ..41
`
`Constellation labels for b = 2 and b = 4 .............................................. ..43
`
`Constellation labels for b = 3 .............................................................. ..44
`
`Constellation labels for b = 5 .............................................................. ..45
`
`ATU-C transmitter PSD mask............................................................. ..48
`
`ATU-C transmitter PSD mask: pass band detail ................................ ..50
`
`ATU-Ft data interfaces ........................................................................ ..51
`
`Fast data buffer — ATU—R transmitter ................................................. ..53
`
`Interleaved data buffer - ATU-Fl transmitter....................................... ..54
`
`ATU-R transmitter PSD mask............................................................. ..61
`
`ADSL entrance unit block diagram ..................................................... ..66
`
`Test setup for transmission and impedance measurements .............. ..67
`
`Measurement method for longitudinal output voltage ......................... ..69
`
`Measurement method for longitudinal balance above 25 kHz............ ..70
`
`In-service surveillance of the ADSL link shown from the standpoint
`of the ATU-C ....................................................................................... ..79
`
`OAM capabilities for the segment between ATU-R and the service
`module ................................................................................................ ..84
`
`Overview of initialization ..................................................................... ..87
`
`Timing diagram of activation and acknowledgment (12.2-12.3) ......... ..89
`
`Timing diagram of transceiver training (12.4-12.5) ............................. ..93
`
`Timing diagram of channel analysis (12.6-12.7) ................................. ..98
`
`C-RATES1 and R-RATES1 (12.6.2 and 12.7.4) ................................. ..99
`
`Timing diagram of exchange (12.8-12.9) .......................................... ..105
`
`Format of the bit swap request message ......................................... ..113
`Format of the bit swap acknowledge ..................................................114
`
`Overview of test setup ...................................................................... ..116
`
`Test loops ......................................................................................... ..118
`
`Test impulse #1 ................................................................................ ..12O
`
`Dish
`Exhibit 1008, Page 8
`
`

`
`Page
`Test impulse #2 ..................................................................................12O
`40
`Laboratory test setup for measuring performance margins................121
`41
`High impedance crosstalk injection circuit..........................................122
`42
`interface on the customer premises side of the U-R ..........................127
`43
`Wiring for a remotely located POTS splitter/ATU-Ft ...........................128
`44
`Annexes
`
`A
`B
`C
`D
`E
`
`ATU—C and ATU-R state diagrams ....................................................130
`Power spectral density of crosstalk disturbers ..................................137
`Characteristics of test impulse waveforms ........................................147
`Vendor identification numbers ...........................................................153
`Resistance and insertion loss characteristics of typical telephone
`154
`cables
`Overvoltage, surge protection, and EMC ..........................................156
`Examples of ADSL services and applications ...................................157
`Aspects of ADSL systems based 2048 Mkbit/s .................................160
`items for further study.........................................................................169
`Bibliography........................................................................................17O
`
`Dish
`Exhibit 1008, Page 9