Seminars on Data Communication Technologies
encompasses many different technologies that provide solutions
that are optimized for speed, distance, or cost. Click on available
topics to learn more.
In order for two devices to communicate they need
connectors, specific cable types, framing and other agreed-upon
parameters. The OSI 7-layer model is the conventional way of understanding
where the various protocols reside in this "communications stack".
Introduction to Data Communications
Some of the basics of datacom including the differences
between LANs, MANs and WANs and why these distinctions exists.
This seminar also explains the phone networks T1, T3, and OC-3
Making Useful Networks
It takes more than wires to make useful networks.
What is the difference between a name, address, and route? When
do you use bridges, switches, and routers? Network Management
allows you to manage and diagnose a network.
Overview - An overview of what it takes to make networks
Bridges - A description of the four main types of bridges.
Routers - A description of the various types of routers
and how they work.
IP addressing - A description of the four types of
IP addresses, public/private
addresses, and static/dynamic addresses.
Network Management - How these systems monitor complex
Layer 1-2 Technologies
ATM (Asynchronous Transfer Mode)
ATM is technology that uses small cell sizes to
transport data through networks. It provides good Quality of Service
(QoS) and is often used on DSL modems and through the Telecom
Overview - An overview of ATM, the types of connections,
and a description of the various cell formats.
Connection Management - A description of the various
forms of QoS, the messages that are required to establish a session,
and the concept of Virtual Circuits (VCs).
ATM Adaptation Layer (AAL) - A description of the three
types of ATM Adaptation Layer mechanisms (AAL-1, AAL-3/4, and
The Cable Modem standard for the US is DOCSIS
(Data Over Cable System Interface Specification). This series
looks provides an overview of the workings of a cable TV system,
the messages that control the system and the modulation technology.
Overview - An overview of the components of a cable
The DOCSIS Protocol - A description of the messages
between the CMTS and the CM. This
includes the mechanism to share the coax, ranging
The DOCSIS Physical Layer - The downstream/upstream
modulation and data rates.
Quality of Service (DOCSIS 1.1) - The changes to DOCSIS
1.0 to implement Quality of
Frame Relay (Available soon.)
A packet technology commonly used for businesses
allowing simultaneous voice and data technologies.
Wireless Data Communications
Wireless communications can be used to cover large
distances or short distances. The basic characteristics that define
wireless standards are frequency, power, bandwidth, and modulation.
xDSL - Understanding the various forms of DSL Technology
There are many forms Digital Subscriber Loop (DSL)
technologies including the best known,. ADSL (Asymmetric Digital
Subscriber Loop). This seminar covers the capabilities of each
of the xDSL technologies, the major applications, and basic technology
of how they it works.
Layer 3-7 Technologies
IP Version 6
The next generation of the Internet Protocol (IP)
has a number of improvements over the current IP version 4. Don't
ask what happened to version 5.
Cable Modems vs. ADSL, Technology, Applications and Myths
Learn about these two types of broadband delivery
systems. This seminar provides an overview of the technologies,
where they shine and the the truth behind the myths being spread
by these fierce competitors.
CableHome: The home networking standard
CableHome compliant equipment will be required
by the cable operators to get enhanced content to home networking
devices. This architecture uses existing home networking LAN technologies
to deliver this content but enhanced routers, NATs, and bridges
are required. If the customer desires, this architecture will
allow the operator to configure your new devices, identify malfunctioning
devices, and provide updates for your firewall.
Network Computing (Available soon.)
Network Computing puts the processor into the
network and greatly reduces the costs of computing.
Voice over IP (VoIP)
Voice over IP allows telephone conversations to
be delivered using data networks. This is an overview of the VoIP
technology, architecture, and a discussion of the various aspects
of connecting the data networks with the public phone network.
Overview - An overview of the components of the various
aspects of VoIP.
Voice Coding Algorithms - A description of the various
methods for digitizing speech.
VoIP Applications - The VoIP technology only becomes
useful when compelling applications
meet the needs of customers. The corporate,
cable telephony, and video conferencing
applications are examined.
VoIP Problems - Deployment of VoIP has been slower
than expected because of problems
with underlying networks, standardization issues,
and network control devices.