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Technology Stocks : The *NEW* Frank Coluccio Technology Forum -- Ignore unavailable to you. Want to Upgrade?

To: aladin who wrote (41450)	9/6/2012 11:26:49 AM
From: Frank A. Coluccio	Respond to of 46821

Hi John, I'm backed up at the moment, but will return at a later time to address your points, as well as a few others on the burner. Meanwhile, if you've not yet read my earlier repost from Gazettabyte, concerning the need for flexible bandwidth, you may find it both interesting and in some ways relevant to your earlier post above: Message 28363144 ------

To: aladin who wrote (41450)	9/6/2012 2:46:39 PM
From: Win-Lose-Draw	Respond to of 46821

Tackling it from the demand end....for the first time in my life I have more bandwidth to the home than I know what to do with...and that's with a family full of Netflix and YouTube and online PS3 users. I realize not everybody has the same quality connection, but it's also true that what I have (50Mbps) is not exactly unique anymore, either.

To: aladin who wrote (41450)	9/6/2012 3:25:58 PM
From: axial	Read Replies (1) \| Respond to of 46821

" It's been my observation in the computer industry that our thinking has been clouded by the ongoing success of of Moore's Law. In communications the disconnect between these two principals was masked by two factors: Communications technologies were not yet approaching Shannon's Limit and the ramp up looked very similar to Moore's law The Telecom bubble of the late 90's and the huge capacity glut created from the remains This glut is nearing an end, but there is little appetite for large scale capital intensive projects. With Wireless - speeds have increased and continue to increase, but this has occurred primarily through smaller cell sizes." Right on. --- I would only add that capital for low-latency buildouts large and small, wired and open-space, has appeared quickly and in quantity. Jim

To: aladin who wrote (41450)	9/17/2012 9:04:18 AM
From: Frank A. Coluccio	Respond to of 46821

Hi John, re: "Optical is becoming interesting because at 200G we will reach capacity on wavelengths on existing fiber without additional regeneration. In other words - you can plan on 400G or 1 Terabit per channel, but you can forget ILA's and will need active components - driving up cost. Submarine routes using existing fiber at these speeds will not be possible with any known technologies (putting them out at least 5 if not 10 years)." - As I'm sure you already know (but posted here nonetheless for the unaware), one of the limiting factors affecting total system capacity, aside from the static design and construction of subsea repeaters that can't be easily replaced, is the enormous amount of electric power required to power a subsea cable of any appreciable length. It's not uncommon to find power generation capabilities, within or in the vicinity of cable landing stations, that are on the order of 10kv d.c. @ 10kw constantly. Consequently, today's cables are usually limited to only 16 or so strands of fiber (8 pairs), up from only six or eight strands (3 or 4 pairs, at one time) to power repeaters and diagnostic capabilities, with several of those pairs reserved for maintenance and rollovers during bandwidth upgrades and changes in modulation formats. Is it time, then, that we see mid-ocean power plants constructed, perhaps using wave or tidal generation? Such a source of power could also facilitate mid-ocean meet-me and IXP functions, thus allowing for a more logical siting of routers and switches for intercontinental networking and traffic management. FAC ------