Broadband access 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.
What will you learn
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.
Broadband access 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
Broadband access 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 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 ATM.
Installing and configuring ADSL
Choosing providers, line activation, hardware
requirements, Configuring layer 1 and layer 2,
Configuring IP.
Summary
ITU ADSL standards