Installing digital subscriber line (DSL)

COMPETENCY BASED LEARNING MATERIAL

Sector:

INFORMATION AND COMNMUNICATION TECHNOLOGY (ICT)

Qualification:

TELECOM OSP AND SUBSCRIBER LINE INSTALLATION (Copper
Cable/POTS and DSL) NC II

Unit of Competency: Install Digital Subscriber Line (DSL)
Module Title: :
Installing Digital Subscriber Line (DSL)

Developed by:

Roberto S. Macapagal –
Training Officer, Network Access Technology

PHILIPPINE LONG DISTANCE TELEPHONE COMPANY
Technical Training Division

Table of contents

Contents page

Glossary of Terms………………………………………………………. 1

Introduction………………………………………………………………. 3

Information Sheet # 1…………………………………………………… 4

LO1.Preparation of materials and equipment for DSL
Modem Installation

Information Sheet # 2…………………………………………………… 7
LO2. Perform Installation of DSL Modem

Information Sheet # 3…………………………………………………… 25
LO3. Wrap up Job

Operation Sheet……………………………………………………….… 26

Job Sheet………………………………………………………….……… 27

Self – Check……………………………………………………………… 28

Answer Key…………………………………………………………….... 29

Performance Test………………………………………………….…… 30

Glossary of Terms:

Sync

DSL Internet Access issues can be broken down into the two categories of
synchronization and non-synchronization. This is also called "synch but no surf",
and "no synch". If you are synched up but cannot reach the Internet, this means
that though your DSL modem has made a connection to your telephone services
central office, you are not authenticating through your provider or are not reaching
the Internet. If you are not synched, your modem has failed to reach your phone
service's central office.

DSL Splitter

is a device used to prevent interference problems. It filters the low
frequencies of the telephone line from the high-frequency ADSL line

DSL Modem

Is a device used to connect a computer or router to a telephone circuit that
has Digital Subscriber Line service configured

LAN Card/NICard

Is a computer hardware component that connects a computer to a
computer network.

LED (light-emitting diode)

A light-emitting diode (LED) is a semiconductor light source. LEDs are used
as indicator lamps in many devices such as modem and other telecommunication
equipment

Web Browsing

It is a software application for retrieving, presenting, and traversing
information resources on the World Wide Web. An information resource is
identified by a Uniform Resource Identifier (URI) and may be a web page, image,
video, or other piece of content

Customer Premise Equipment (CPE)

Customer premises equipment (CPE) is telephone or other service provider
equipment that is located on the customer's premises (physical location) rather
than on the provider's premises or in between.

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 1
ICT 724610

Program/Course: Telecom OSP and Subscriber Line Installation
Unit of Competency: Install Digital Subscriber Line (DSL)
Module Title: Installing Digital Subscriber Line (DSL)

INTRODUCTION:

This module is designed to enhance the knowledge, skills and attitude of the trainees in
installing Digital Subscriber Line (DSL)

LEARNING OUTCOMES

Upon completion of this module you should be able to:

1. Learn and prepare materials and equipment for DSL installation

2. Install splitter, connect modem to PC and telephone, test the speed of
connection and internet browsing

3. Learn the Do’s and Don’ts before and after installation

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 2
ICT 724610

INFORMATION SHEET # 1

LO1.
Preparation of materials and equipment for DSL Modem Installation

Objective:
Upon completion of this topic participants should be able to identify, describe and
prepare the necessary materials and equipment needed for DSL installation

LIST OF MATERIALS AND EQUIPMENT

1)

A Registered Jack (RJ 11) is a standardized physical network interface both jack
construction and wiring pattern for connecting telecommunications or data equipment to a
service provided by a local exchange carrier or long distance carrier.

2)

A DSL Splitter/Micro Filter is an analog low-pass filter installed between analog devices (such
as telephones or analog modems) and a plain old telephone service (POTS) telephone line, in
order to prevent interference between such devices and a digital subscriber line (DSL) service
operating on the same line

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 3
ICT 724610

INFORMATION SHEET # 1

3)

 
A Registered Jack (RJ 45) connector and wiring pattern used for connection of a high-speed

modem to a telephone network using a keyed 8P8C modular connector

4)

A Digital Subscriber Line (DSL) Modem is a device used to connect a computer or router to a
telephone circuit that has Digital Subscriber Line service configured.

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 4
ICT 724610

INFORMATION SHEET #1

5)

A Network Interface Controller (also known as a network interface card, network adapter, LAN
adapter and by similar terms) is a computer hardware component that connects a computer to a
computer network.

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 5
ICT 724610

INFORMATION SHEET # 2

LO2
Perform Installation of DSL Modem

Objective:
Upon completion of this topic, participants should be able to learn DSL history and
fundamentals and Basics of internet.

History of Digital Subscriber Line

When DSL was first developed in 1989, it was designed primarily for video. Video on
Demand (VOD) was viewed as the next generation service supporting the next
generation network from telephone companies around the world.

Video on Demand was expected to be the telephone company’s way of competing with
cable television providers, and ADSL was the technology to make it possible.

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 6
ICT 724610

INFORMATION SHEET # 2

Due to the increasing demand of PC users which captured the attention of both cable TV
providers and telephone companies, DSL Technology was born

WHAT is DSL?

DSL uses a much broader range of frequencies than the voice channel

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 7
ICT 724610

INFORMATION SHEET # 2

Why ADSL?

• No cable installation
– Low installation cost
– Fast connection of new users
– Valid answer to cablemodem competition

• Cost strictly proportional with number of connected customers
• Bandwidth capabilities

– Low upfront investment limits the financial risk
– Suited for early service deployment
• Bandwidth asymmetry suited for consultation and client-server
applications
• Latent IP connectivity
• Off-load PSTN/NB network
• Virtual second line

Types of DSL

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 8
ICT 724610

INFORMATION SHEET # 2

a) HDSL
High-Bit Rate DSL

b) Symmetric Digital Subscriber Line

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 9
ICT 724610

INFORMATION SHEET # 2

c) Asymmetric Digital Subscriber Line

d) IDSL
ISDN DSL

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 10
ICT 724610

INFORMATION SHEET # 2

e) MSDSL
Multirate Symmetric DSL

f) RADSL
Rate Adaptive DSL

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 11
ICT 724610

INFORMATION SHEET # 2

g) G.Lite

Some Loop Qualification Issues:

Loop Length
a) Wire Gauge
b) Loading Coil
c) Continuity (splices must be well-connected)
d) Transmission Characteristics (Frequency Level, Attenuation, Near/Far Crosstalk,
Power Spectral Density)
e) Cable Sheet must be properly grounded

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 12
ICT 724610

INFORMATION SHEET # 2

ADSL Applications

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 13
ICT 724610

INFORMATION SHEET # 2

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 14
ICT 724610

INFORMATION SHEET # 2

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 15
ICT 724610

INFORMATION SHEET # 2

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 16
ICT 724610

INFORMATION SHEET # 2

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 17
ICT 724610

INFORMATION SHEET # 2

The internet and the World Wide Web

What is the internet?

• a worldwide collection of computer networks connected to and
communicating with each other using TCP/IP

• the cornerstone of thousands of computer networks sharing and
distributing the most valuable commodity of our age - information.

• related terms: information superhighway, cyberspace, the NET

History of the Internet

• Internet started as a military research work called the ARPAnet, of the
US Department of Defense in 1969

• the ARPAnet project connects various military and research sites with
the objective of building fault tolerant networks using computers
running different operating systems and dispersed over a wide area

• ARPAnet was publicly demonstrated in 1972 with fifty universities and
military research facilities connected

• other networks sprang into existence by late 70s
• other networks established connection to ARPAnet via gateways
• National Science Foundation (NSF) built its own network, called

NSFNet in the late 80s using five supercomputer centers and TCP/IP
• all other network projects joined the NSFNet networks
• NSFNet was eventually called Internet

What is the World Wide Web?

• an online connection of documents that are interconnected by
hyperlinks, forming a virtual “web” that spans the Internet

• allows seamless integration of hypertext, graphics, audio and video
• integrates various Internet services (i.e. e-mail, network news, FTP

sites, telnet, Gopher menus and other Web documents) into a
consistent interface

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 18
ICT 724610

INFORMATION SHEET # 2

Advantages of WWW

• nonlinear
• graphical
• interactive

Gopher

• a client/server system for setting up information rich resources behind
a menu-driven interface

• the first tool to successfully integrate text and graphics, file transfer
using FTP, links to remote servers via telnet and other gopher
systems into a consistent interface

WAIS - Wide Area Information Service

• an indexed database system for searching through a set of keywords
that will fetch the documents identified with the keywords

• it is designed as a generic engine that is extremely powerful and is a
flexible means of searching and retrieving documents

TelNet

• a client/server program that uses the telnet protocol to start a remote
session

• it turns the local computer into a client which can access data and
programs in a telnet server

• everything typed at the local keyboard is sent to the remote computer
for processing; and the remote computer sends instructions back to
drive the local display

File Transfer

• a method that allows exchanging files used and documents among
Internet users

• retrieves files from online archives of accumulated software and data
and copying it to a local computer

• uses an Internet service called File Transfer Protocol (FTP)

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 19
ICT 724610

INFORMATION SHEET # 2

• is a program that allows the transfer of files available publicly in the
Internet, from a remote computer (ftp site) to a local computer.

Uniform Resource Locator (URL)

• a method of specifying the exact location of an Internet resource and
the protocol necessary to retrieve and interpret the resource

• e.g. http://www.microsoft.com

Hypertext Transport Protocol (HTTP)

• programming language used for creating hypertext documents

Protocol

• sets of rules where the inter-action of communication
hardware/software are usually implemented through the programming
of the data terminal equipment (DTE)

• they establish the actual format of the data to be sent and various
methods of control on that data

TCP/IP

• Transmission Control Protocol / Internet Protocol
• standard protocol of Internet

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 20
ICT 724610

INFORMATION SHEET # 2

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 21
ICT 724610

INFORMATION SHEET # 2

Internet Service Providers

• Performance Systems International’s Pipeline USA
• IBM’s Global Network
• MCI’s internetMCI
• NetCom’s Internet Services
• UUNet’s AlterDia
• Infocom’s Sequel.Net
• IPhil Communications
• Philippine Network Foundation Inc’s PHNet
• Globe Telecom’s G-Net
• Mosaic Communications’ MosNet

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 22
ICT 724610

INFORMATION SHEET # 2

On-Line Services

• America Online
• CompuServe
• Prodigy
• Microsoft Network
• AT&T Exchange
• CyberNET Live
• Virtual Asia
• Portal, Inc.

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 23
ICT 724610

INFORMATION SHEET # 3

LO3
Wrap up job

Objective:
Upon completion of this topic, participants should learn things to do after installing
DSL

Do’s and Don’ts after Installation

1) Be always neat about your appearance and work.

2) Make your work permanent.

3) Be sure all boxes and wrappings of materials and equipment are
removed within the customer’s premises.

4) Do test DSL connection regarding with its speed and browsing and
telephone instrument after the installation for correct dial speed,
transmission, reception and low level noise.

5) Always leave the new customer with the thought that you have done your
work properly.

6) Don’t leave customer’s premises unless customer is familiar with the
operation of DSL particularly in using their username and password.

7) Don’t drop a hint to the customer that you are hungry or thirsty.

8) Don’t tell customer or people who question you about facilities to call
executive of PLDT. As PLDT you represent PLDT. Make note and give it
to your supervisor

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 24
ICT 724610

OPERATION SHEET

PURPOSE: • Is to prepare the required materials and equipment prior
to installation.

• To install Digital Subscriber Line

PROCEDURE: 1. Arrange materials and equipment needed.
2. Make sure that there is dial tone by lifting the hand set or

by pushing the hands free button of the telephone
3. Connect the splitter to the connecting block
4. Connect the modem and telephone to the designated

ports on the splitter by separate line cords with RJ 11
5. Check the telephone if there is dial tone by lifting the

handset or thru hands free button of the phone
6. Plug the power supply of the modem to the subs electrical

sockets with 220 V power and look on the green light on
the power LED indicator
7. Check the modem if there is a steady green light on the
DSL LED indicator
8. Connect the modem and the LAN card of PC/Lap Top
using data cable or UTP cable with RJ 45
9. Check it there’s a flashing light on the modems Ethernet
LED indicator
10. Go to the browser of the PC/Laptop and browse the
internet

PRECAUTIONS: 1. Practice placement or installation of collapsible sign to
QUALITY CRITERIA: prevent accident.

2. For body belt and safety traps, look for the following
defects:
A. Leather cracks, cut tears, broken stitches and
loose rivets.
B. Defective buckles, snap hooks, keepers and d-
ring.
Should there be any defect, correct them before
using the equipments.
C. If the defect can be corrected change the
equipment into new ones.

3. Don’t use metal rings and attachments for block wiring in
an inflammable or hot surface of the house or

1. Completeness of equipment and materials are
necessary

2. Familiarity on various type of CPE
3. Correct application of installation procedures
4. Customer Satisfaction

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 25
ICT 724610

JOB SHEET

Standard Installation of Digital Subscriber Line

Procedure of Installation

1. Make sure that there is dial tone by lifting the hand set or by pushing the hands free
button of the telephone

2. Connect the splitter to the connecting block
3. Connect the modem and telephone to the designated ports on the splitter by separate line

cords with RJ 11
4. Check the telephone if there is dial tone by lifting the handset or thru hands free button of

the phone
5. Plug the power supply of the modem to the subs electrical sockets with 220 V power
6. Power on the modem and look on the green light on the power LED indicator
7. After 15 seconds check the modem if there is a steady green light on the DSL LED

indicator
8. Connect the modem and the LAN card of PC/Lap Top using data cable or UTP cable with

RJ 45
9. Check it there’s a flashing light on the modems Ethernet LED indicator
10. Go to the browser of the PC/Laptop and browse the internet

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 26
ICT 724610

SELF - CHECK

I. Answer the questions by True or False

1) _______ Weather condition is included on DSL loop qualification issue
2) _______ PC can be connected to a network even LAN Card is not available
3) _______ Splitter should be connected on the Connecting Block or CBK
4) _______ Modem and PC can be connected by line cord (RJ 11)
5) _______ Steady light on DSL LED indicator means that modem and DSLAM are sync
6) _______ In ADSL technology, telephone and PC cannot be used simultaneously
7) _______ It is important that modem and DSLAM are synchronized to have reliable DSL

connection
8) _______ There are many types or flavors of DSL
9) _______ PC should have browser to check if DSL is working
10) _______ ADSL runs on a two copper wire
11) _______ Other end of the line cord RJ 11 should be connected on the modem
12) _______ LAN Card and NICard are different hardwares that are important in ADSL

installation
13) _______ DSL can only be used in internet browsing
14) _______ ADSL can be only installed in Laptops
15) _______ PC or laptops can browse the internet without telephone

II. Enumeration:

What are the Loop Qualification Issues?

1)

2)

3)

4)

5)

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 27
ICT 724610

SELF - CHECK

ANSWER KEY

I. TRUE OR FALSE

1) FALSE
2) FALSE
3) TRUE
4) FALSE
5) TRUE
6) FALSE
7) TRUE
8) TRUE
9) TRUE
10) TRUE
11) TRUE
12) FALSE
13) FALSE
14) FALSE
15) TRUE

II. ENUMERATION

1) Wire Gauge

2) Loading Coil

3) Continuity

4) Transmission characteristics

5) Cable sheet must be properly grounded

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 28
ICT 724610

PERFORMANCE TEST

Learner's Name Date
Competency:
Test Attempt
1st 2nd 3rd

Directions: OVERALL EVALUATION

CALL INSTRUCTOR, ask Level PERFORMANCE LEVELS
instructor to assess your Achieved
performance in the
following critical task and 4 - Can perform this skill without supervision and with
performance criteria below initiative and adaptability to problem situations.

You will be rated based on 3 - Can perform this skill satisfactorily without
the overall evaluation on assistance or supervision.
the right side.
2 - Can perform this skill satisfactorily but requires
some assistance and/or supervision.

1 - Can perform parts of this skill satisfactorily, but
requires considerable assistance and/or supervision.

Instructor will initial level achieved.

PERFORMANCE STANDARDS
For acceptable achievement, all items should receive a "Yes" Yes No N/A
or "N/A" response.

Code No. Module Title – Installing Digital Subscriber Line Date: Developed Date: Revised Page #
Oct. 18, 2011 29
ICT 724610