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Introduction to ADSL

A 2 day training course

ADSL training course description

ADSL is a broadband technology providing fast Internet access (amongst other applications) over existing telephone lines. This course covers an overview of the DSL family, what ADSL is through to how ADSL works.

Key outcomes from this course

By the end of the course delegates will be able to:
  • Recognise the benefits of ADSL.
  • Describe what ADSL is.
  • Describe how ADSL works.
  • Describe the ADSL architecture
  • Recognise the limitations of ADSL.
  • List the elements required for an ADSL installation.

ADSL training course details

Who will benefit:
Network engineers and anyone who will be working with ADSL.
Prerequisites:
Intro to data communications & networking
Duration:
2 days

Training approach

This structured training course seeks to build upon workbook learning through the use of group exercises, dynamic discussion and individual tasks in order to deliver an engaging and interactive module that will ensure all candidates are able to transfer their new skills into the workplace.

Overall ratings for this course:

Course review


"Hard concepts were explained very simply."
J. S., Framestore CFC
"Excellent presentation - very good course structure."
B. M., London Internet Exchange

ADSL training course contents


What is ADSL?
Broadband definitions, OSI layer 1, ADSL services, WANS. ADSL features: always on, point to point, Asymmetric, speeds. ADSL benefits, xDSL family, standards, history, example DSL forum documents.
ADSL architecture
The big picture, The PSTN and telephones, Digital and analogue, PSTN and modems, ADSL vs. modem speeds, Block 1: Customer premises, Block 2: The last mile, Block 3: The exchange, Block 4: the core network.
Customer premises
Splitters, micro filters, splitter architectures, Splitterless ADSL, ADSL modems, USB, ADSL routers.
The local loop
ADSL PHY, Some basics, ADSL margins, speed implications, distances, RADSL, Line testing, whoosh tests, line coding, multiple channels, FDM, echo cancellation, Modulation: AM, FM, PM, QAM, QAM constellations, DMT, CAP, Framing, Superframes, fast data mode, interleaved mode, RADSL revisited.
The local loop
ADSL PHY, Some basics, ADSL margins, speed implications, distances, RADSL, Line testing, whoosh tests, line coding, multiple channels, FDM, echo cancellation, Modulation: AM, FM, PM, QAM, QAM constellations, DMT, CAP, Framing, Superframes, fast data mode, interleaved mode, RADSL revisited.
The exchange
Local exchange ADSL items, DSLAMs, ADSL racks, Contention.
The core network
The role of the core network, ATM, ATM VPI/VCI, ATM cells, ATM layers, AAL5, RAS, Home gateways.
ADSL and the higher layers
Layer 2 choices, PPPoA, PPP, CHAP, layer 4 and above, ADSL and IP, ADSL and ATM.
Installing and configuring ADSL
Choosing providers, line activation, hardware requirements, Configuring layer 1 and layer 2, Configuring IP.
Summary
ITU ADSL standards.

Why Choose Us

SNT trainers score an average of over 90% on the three main areas of:
  • Ability to teach
  • Technical knowledge
  • Answering questions
“Excellently presented by a very knowledgeable and enthusiastic trainer.” P.D. General Dynamics

We limit our maximum class size to 8 delegates; often we have less than this. This ensures optimal interactivity between delegates and instructor.
"Excellent course. The small class size was a great benefit…" M.B. IBM

We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.

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