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.
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.
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.
Splitters, micro filters, splitter architectures, Splitterless ADSL, ADSL modems, USB, ADSL routers.
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.
Local exchange ADSL items, DSLAMs, ADSL racks, Contention.
The role of the core network, ATM, ATM VPI/VCI, ATM cells, ATM layers, AAL5, RAS, Home gateways.
Layer 2 choices, PPPoA, PPP, CHAP, Layer 4 and above, ADSL and ATM.
Choosing providers, line activation, hardware requirements, Configuring layer 1 and layer 2, Configuring IP.
ITU ADSL standards
"Overall, really enjoyed the course. There trainer was well informed and catered the course to our needs. Would attend another one of his courses."
"Material was interchanged well with live demo."
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.