l:NSI T1.413-1995
`
`SPECIFFGAWGN
`
`APR 1 5 1995
`
`LINDA HALL LID:-1;-u1y
`
`for Telecommunications —
`
`Network and Customer
`
`Installation Interfaces —
`Asymmetric Digital Subscriber
`Line (ADSL) Metallic Interface
`
`LINDA HALL LIBRARY
`KANSAS CITY, MJSSOUR§
`
`WI American National Standards Institute
`11 West 42nd Street
`
`New York, New York
`10036
`
`
`
`ANSIT1.413-1995J
`
`Dish
`Exhibit 1009, 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.
`
`l.lNDA HALL LlBl~'tARY
`KANSAS CITY. MISSOURI
`
`Dish
`Exhibit 1009, Page 2
`
`

`
`American
`
`National
`Standard
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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 otherwise,
`without prior written permission of the publisher.
`
`Printed in the United States of America
`
`APS3C1295/135
`
`Dish
`Exhibit 1009, Page 3