Optical Networks [rss]

PodSnacks: Generic Framing Procedure (GFP)

Posted Wednesday, September 03, 2008 6:00 AM by mgilbert :: 1 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/gfp.mp3
Time for that fifth and final installment in our series on Next Generation SONET (NG-SONET). In the next few days we'll begin a series on T-carrier systems. It will be a bit on the technical side, so hang on to your pocket protectors and remember Read More...

PodSnacks: Link Capacity Adjustment Scheme (LCAS)

Posted Monday, September 01, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/lcas.mp3
A new day, a new week, and the fourth installment of a five-part series on Next Generation SONET (NG-SONET). Today's episode pickup on our discussion with a look at the Link Capacity Adjustment Scheme (LCAS). Although LCAS is not necessary for NG-SONET Read More...

PodSnacks: Virtual Concatenation (VCAT)

Posted Friday, August 29, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/vcat.mp3
This PodSnack continues the Next Generation SONET (NG-SONET) theme I started, and this one deals specifically with one of the three enhancements NG-SONET brings to the table: Virtual Concatenation (VCAT) . VCAT is an inverse multiplexing technique. You Read More...

PodSnacks: Next Generation SONET (NG-SONET)

Posted Wednesday, August 27, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/ng-sonet.mp3
A couple of days ago, I chose to talk about Ethernet over SONET (EoS). At the end, I mentioned that Next Generation SONET (NG-SONET) is a critical enabling technology for EoS. Today we're going to look at NG-SONET and identify the three basic enhancements Read More...

PodSnacks: Ethernet over SONET (EoS)

Posted Monday, August 25, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/eos.mp3
I'm on the road with Trevor this week, and Ethernet is going to be a major focus for this customer. So, today I've chosen to talk about Ethernet over SONET (EoS). EoS is an important enabling technology, making it possible for the carriers and Read More...

PodSnacks: Hybrid Fiber/Coax (HFC)

Posted Wednesday, August 06, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/hfc.mp3
The fourth and final installment in our access network series, which thus far has focused on Fiber to the X (FTTX), switches gears a bit to a different industry segment, that of the cable companies. In today's PodSnack, Dave and Trevor take a bit Read More...

PodSnacks: Fiber to the Premises (FTTP)

Posted Monday, August 04, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/fttp.mp3
The third installment in our series on Fiber to the X (FTTX) looks at Fiber to the Premises (FTTP). This is the predominant architecture being championed by Verizon as part of their FiOS service. In today's PodSnack, Dave and Trevor discuss the technology Read More...

PodSnacks: Fiber to the Node (FTTN)

Posted Friday, August 01, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/fttn.mp3
Today we continue our series on Fiber to the X (FTTX) with a look at Fiber to the Node (FTTN). This is the predominant architecture being championed by AT&T. In today's PodSnack, Dave and Trevor will explore the technology and discuss some of Read More...

PodSnacks: Fiber to the X (FTTX)

Posted Wednesday, July 30, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/fttx.mp3
Today we begin a short series on Fiber to the X (FTTX), which will be completed over the coming weeks along with our concurrent series on Fiber Channel. FTTX is the generic name given to an entire family of access technologies and deployment models being Read More...

PodSnacks: Wavelength Division Multiplexing

Posted Wednesday, May 07, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/wdm.mp3
We wrap up our multiplexing series with a quick look at wavelength division multiplexing (WDM). In today's episode, Michel and Mark noodle on the concept a bit. Over the next few days we will begin a series of PodSnacks based on requests from listeners. Read More...

PodSnacks: Optical Network

Posted Tuesday, April 08, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q2/optical_network.mp3
In the past, we have looked at SONET . Since SONET stands for Synchronous Optical Network , one would be tempted to think we have already discussed optical networking, so there' nothing left to be said. The fact is, we haven't really talked about Read More...

PodSnacks: Graded-index vs. Stepped-index Multimode Fiber

Posted Tuesday, April 01, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q2/grin-stin.mp3
We have done other PodSnacks on optical fiber . We've even discussed the difference between single-mode fiber and multimode fiber . Today we narrow the scope even further and distinguish between graded-index and stepped-index MMF. The difference lies Read More...

PodSnacks: Synchronous Optical Network (SONET)

Posted Friday, March 28, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/sonet.mp3
At the core of virtually every carrier and MSO's data and voice network sits a technology we have been using since 1984. By some estimates, over 99% of all of the voice and data traffic that touches a carrier or MSO network crosses a SONET facility Read More...

PodSnacks: Optical Fibers

Posted Friday, January 25, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/optical_fiber.mp3
Let's shift gears a bit and get down into the wires. Well, not exactly the wires. More specifically the fibers . Although there is still a lot of copper on customer premises and within carrier offices, today the core of telecommunications networks Read More...

PodSnacks: Four-Fiber Bidirectional Line Switched Ring

Posted Wednesday, September 12, 2007 6:20 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/4f-blsr.mp3
Today we conclude our examination of SONET ring types. In the past two days we looked at unidirectional path switched rings (UPSR) and two-fiber bidirectional line switched rings (2F-BLSR). Today we look at the larger four-fiber bidirectional line switched Read More...
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