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ESCUELA SUPERIOR POLITECNICADE CHIMBORAZO

MAESTRÍA EN SISTEMAS DE TELECOMUNICACIONES

AGUSTÍN CORTEZ

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XDSL FAMILY

XDSL

Symmetricalservices

Asymmetricservices

HDSL 2 pairs of copper.

E1

SDSL 1.1 Mbps (3 Km).

ADSL

TX = RX TX ≠ RX

Upstream 1Mbps

Downstream 8 Mbps

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TECHNOLOGY PAIRS

COOPERDOWNSTREA

N MAXUPSTREAM

MAX MODEMAX

DISTANCE

HDSL 2 15 or 2! 8 Kbps15 or

2! 8 Kbps S"mmetric c 3#!! m c

SDSL 1 15 or 2! 8 Kbps15 or

2! 8 Kbps S"mmetric 3!!! m

$DSL 1 8 Mbps 1 Mbps $s"mmetric 3!!! m

$DSL 2 1 2 Mbps 3.3 Mbps $s"mmetric 25!! m

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Client

ADSL : Asymmetric Digital Subscriber Line

Twisted pair

Up to 8.3 Mb / sDownstream

8!! %b&s (or more)Upstream

$'M$DSL

$'M$DSL

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'S sp*itter+ (Separate , - E $DSL traffic )

twiste/ pair

PSTN

0e/ $'M

ADSL$'M

'SSp*itter

Mo/em$DSL

'SSp*itter

Mo/em$DSL

SDHATM M tip*e or

Mo/em$DSL

$'M

254 Mb&s

Et68 M

b&s

Mo/em$DSL

Set Top Box'.,.

IR

'SSp*itter

'SSp*itter

S'7 + b*ic Switc6e/ 'e*ep6one 7etwor%

ADSLADSL

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ESTRUCTUR xDSL

DSLAM

Splitter

PHONE 1

PHONE 2

MODEN

PC 2 PC 1

WIRE

COOPER

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xdsl ARCHITECTURE

DSLCPE

DSLenabledset-top

box

POTSsplitter

Fiber feeder( oi!e "DSLdata#

V5.2

$oi!es%it!&

OC-' ) STM-

Central o*!e

ADSLVDSL

DLC

DLC

$oDser er$ideoen!oders

Satellite!ontentfeed

+-RAS

Internet

PSTN W W W

W W W

DSLCPE

W W W

ADSLVDSL

+a!,boneAT or IP orSDH)SO.ET

/lti!ast

I0 P and1/lti!asts/pport

/lti!ast

I0 P ter1ination2AT /lti!ast !o11and