Teracom Training Institute
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In this issue:

  • BOOT CAMP: Live Online September 21-25
    The June BOOT CAMP Live Online was a great success.  Join us September 21 to bust the buzzwords, demystify the jargon and understand today's converged broadband telecommunications, and most importantly, the underlying ideas... and how it all fits together.
  • Automatic CTNS Course Updates and Package Upgrade
    Major updates to online certification courses and packages are rolling out.
    All customers automatically receive updates!  Order CTNS now to get two courses free!
  • Tutorial: Optical Ethernet
    Today's telecom networks are built with point-to-point fibers.  Bits, organized into Ethernet MAC frames, are communicated from one end to the other by turning lights on and off.
    From Section 10.5 of the new Telecom 101 Fifth Edition: 2020 reference book.
  • Telecom 101: Fifth Edition 2020
    High-Quality Reference Book and Study Guide Covering All Major Telecommunications Topics... in Plain English. 7" x 9" softcover book • printed in color • 550 pages • 5th edition • published 2020

 

BOOT CAMP: Live Online September 21-25


BOOT CAMP     

Teracom's famous core telecom training for non-engineers, totally updated for the 2020s, with broadband, cloud computing, data centers, 5G, IoT, broadband wireless and much more.

The June BOOT CAMP Live Online was a great success. Join us September 21 to bust the buzzwords, demystify the jargon and understand today's telecommunications technologies, and most importantly, the underlying ideas... and how it all fits together.

You will learn and retain more as part of a live class with a real instructor, where you can ask questions and interact with others.

Thousands of people have benefitted from this training.  Join us!

get more info  •  register  •  detailed BOOT CAMP brochure


"Awesome course, really. Just very, very good."
  - Tim Wilson, Ciena   June 2020

"I really enjoyed the course - it covered a very broad spectrum & Eric is a great, knowledgeable instructor. He was very receptive to questions, allowing ample time for them, and he was able to frame the answer to the level of knowledge of the questioner."
  - Marie Fiala, Ciena

"The course was very beneficial for me.  I wish I would have been able to take this class a few years back when I first started!"
  - Tamara Pepin, CRTC


All you need to join BOOT CAMP Live Online and get this world-famous training is a laptop with a webcam.

We'll ship you the high-quality printed color course books in advance of the BOOT CAMP, and you'll be part of a class that runs 9 - 5 Monday - Friday.

The best part: BOOT CAMP was totally updated for 2020, with 5G, Cloud Computing, Data Centers, Smart Cities & more, just before the pandemic struck! 

This is the most up-to-date telecom-for-non-engineers training that can be found anywhere.

This is truly career-enhancing knowledge.

Teracom BOOT CAMP Live Online is a great opportunity:

  • Live interactive group training, guaranteed coronavirus-free!
  • You will be part of a class.
  • You will be able to see and hear everyone else.
  • We'll ship you the high-quality printed color course books in advance.
  • The instructor will stand up at the front of the room and teach the class like any other BOOT CAMP.
  • The instructor will keep you focused, so you learn, like any other BOOT CAMP.
  • You can ask the instructor questions, like any other BOOT CAMP.
  • The class will run on a schedule: 9 - 5 Monday to Friday, with scheduled breaks, like any other BOOT CAMP.
  • You get immediate access to three TCO Certification Packages, with their online courses.
  • No travel required.
  • Anyone worldwide can take BOOT CAMP.
  • All you need is a laptop with a webcam.

This is an ideal time to get the training you need!

You'll get the course materials shipped to you: two printed color books totaling over 500 pages with copies of all graphics and detailed text notes.

You will also get immediate access to the included TCO Certification Packages: CTNS, CTA and CVA and their twenty full-length online courses, with no time limits and unlimited repeats.

You'll get the full BOOT CAMP with our top instructor, as close as you can get without actually being there.

If you are an international participant, this is your opportunity to take BOOT CAMP. No US travel visa required!

Carpe diem!

register for boot camp   get more info


Automatic CTNS Course Updates and Package Upgrades


In the constantly-evolving world of telecom, it is essential to keep training courses up to date.

The reason why so many people appreciate Teracom's Online Courses and TCO Certification Packages is because they are based on Teracom's instructor-led courses, with the selection of material, its order, timing and explanations tuned and refined in the classroom over the course of years, and constantly updated.

This also means that updates to instructor-led courses are subsequently reflected in online courses, keeping them up to date.

Following the major update to instructor-led Course 101 Broadband, Telecom, Datacom and Networking for Non-Engineers (Days 1 - 3 of BOOT CAMP) in 2020, updates to many online courses will be rolling out over the next months.

Certified Telecommunications Network Specialist (CTNS) is our most popular package of six online courses plus TCO Certification.

All six CTNS courses are being updated.  Update of Course 2201 The PSTN is complete.  A significant update to Course 2206 Wireless Telecommunications will be published in the next weeks.  Updates to the OSI Layers, Ethernet, IP and MPLS courses will follow.

All customers who have purchased the CTNS package, or any of the courses individually, will automatically receive the updates in their dashboard.

Stay tuned for an exciting announcement of an upgrade to the CTNS package, increasing the package from six courses to eight, with the inclusion of a brand new course #1 in the lineup "Introduction to Broadband Telecommunications" plus "Fundamentals of Voice over IP".

The price of the CTNS package will increase when the number of courses increases from six to eight. Since all existing customers will automatically get the two new courses at no additional charge, you can beat the price increase by purchasing CTNS before the upgrade and get the two new courses, when they are released, for free!


Carpe diem!


Tutorial: Optical Ethernet

From the new textbook Telecom 101 Fifth Edition: 2020


SFP optical transceivers

Figure 111. SFP Optical Transceivers


10.5 Optical Ethernet

Optical Ethernet is signaling MAC frames (Section 4.4) from one device to another by flashing a light on and off; light on represents a 1 and light off represents a 0 in many systems.

The light, called a wavelength or lamda - λ in Greek - is as close to one single pure frequency as possible, in the infra-red, lower frequencies than what our eyes detect.

In sophisticated systems, the wavelength might be modulated with QAM (Section 3.4) to increase the bit rate.

Normally, Optical Ethernet is implemented as point-to-point connections: from a hardware port on one switch or router to a hardware port on another switch or router in a different building. This includes connections between core routers in cities, connections between routers and switches within a city, and connections from carriers to customers.

10.5.1 SFP Modules and Connectors

The light is generated by a laser controlled by pulses of electricity at the transmitter.  The intensity and sometimes phase of the light is modulated, i.e. changed in discrete steps, to represent bits optically based on the pulses of electricity. Up to 80 km (50 miles) away at the other end of a tube of glass thinner than one of your hairs, a photodetector at the receiver measures the received light and decides what bits are being represented, and transmits them onward as pulses of electricity.

As illustrated in Figure 111, most systems use two fibers, one for each direction. A device combining the transmitter and detector functions is called an optical transceiver.

This device has metal connectors on one side to plug into a slot on a router or switch, and optical connectors on the other side, either factory- or field-installed on the fibers plugged into the transceiver.

These transceivers are typically implemented as Small Form-factor Pluggable (SFP) modules, which are hot-swappable in the terminating equipment at each end.

100 Gb/s being communicated through this transceiver is the high end of commercially-deployed technology in 2020.

In some cases, the SFP modules are embedded in the terminating equipment, meaning the fibers are plugged into the terminating equipment. This allows re-use of existing fiber. In other cases, the SFP modules are attached to fiber cables by the fiber cable manufacturer, meaning the SFP module is plugged into the terminating equipment. This ensures the fiber and transceiver technology are matched and the optical connection is a high-quality "factory" connection.

The SFP module format is not the subject of a standard, but rather described in industry Multiple Sourcing Agreements (MSA).

10.5.3 IEEE Standards

There are many technologies for transceivers implemented in the SFP module. Some are proprietary; many are standardized by the IEEE. In practice, the same manufacturer's product is used at both ends of the fiber to ensure compatibility. The table in Figure 112 lists current IEEE standards. More will be published in the future.

SFP optical transceivers

Figure 112. IEEE Optical Ethernet Standards

Most technologies use one fiber for each direction. Some, like for fiber to the home, use two wavelengths for two directions on one fiber. The bitrate of the standards beginning with 1000 is 1,000 Mb/s, or 1 Gb/s. A G at the beginning means Gigabits/second.  40 and 100 Gb/s technologies split the bitstream into subrates and transmit them in parallel on different wavelengths called paths or lanes.

The reach is the maximum length of fiber between devices.  Single-mode and multimode are designations for different qualities of fiber.  Most if not all builds today use single-mode fiber.

Source: Telecom 101 textbook / reference book, Fifth Edition: 2020 available in print and eBook.


Telecom 101 Fifth Edition: 2020


 Telecom 101 Fifth Edition 2020     

High-Quality Reference Book and Study Guide Covering All Major Telecommunications Topics... in Plain English.
7" x 9" softcover book • printed in color • 550 pages • 5th edition • published 2020
ISBN 9781894887588 (print) ISBN 9781894887595 (eBook)

Packed with information, authoritative, covering all major topics - and written in plain English - Telecom 101 is also an invaluable textbook and day-to-day reference on telecom.

Completely updated and revised for the 2020s, the new Fifth Edition of Telecom 101 is the materials from the latest version of Teracom's famous Course 101 Broadband, Telecom, Datacom and Networking for Non-Engineers, plus additional topics and chapters.

In a user-friendly 7 x 9" softcover version, printed in color, or in eBook format, Telecom 101 brings you in one volume consistency, completeness and unbeatable value.

Telecom 101 also serves as a study guide for the Telecommunications Certification Organization TCO Certified Telecommunications Analyst (CTA) telecommunications certification, covering all material required for the CTA Certification Exam except the security module.

Our approach can be summed up with a simple philosophy: Start at the beginning. Progress in a logical order. Build one concept on top of another. Finish at the end. Avoid jargon. Speak in plain English. Bust the buzzwords, demystify jargon, and cut through doubletalk!

Fill gaps and build a solid base of structured knowledge. Understand how everything fits together. ... knowledge and understanding that lasts a lifetime.

Ideal for anyone needing a book covering all major topics in telecom, data communications, IP and networking… in plain English.

A wealth of clear, concise, organized knowledge, impossible to find in one place anywhere else!

printed book   Telecom 101 eBook on Amazon kindle   Telecom 101 eBook on Google Play

Free previews available on Amazon and Google Play




Your colleagues may be interested... would you please forward this to them?

Many thanks,
Eric Coll, Director
Teracom Training Institute

 

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