By Mark Laubach, Stephen Dukes, David Farber
"The instantly scoop on cable and the web from authors who understand the evidence. there's no higher source."–Vinton Cerf Here’s your likelihood to profit from the specialists why cable is speedy outpacing competing applied sciences within the high-speed net industry. no matter if you’re drawn to integrating cable providers into your community or simply are looking to comprehend what the broadband hype is all approximately, this e-book deals an easy-to-understand but systematic account of all features of the know-how, from cable modems to the evolving broadband entry of the long run. placing to leisure questions about safeguard and caliber of carrier that plague this much-contested undefined, supplying net Connections over Cable gains the cable operator’s standpoint on a variety of very important issues.
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Extra resources for Delivering Internet Connections over Cable: Breaking the Access Barrier
On the international front, in September 1994, an industrial consortium called the Digital Audio Video Council (DAVIC) began its standards process, focusing initially on the video-on-demand market; it quickly switched its attention to the intelligent set-top box, digital video based on international standards, and two-way interactive services. In June 1999, DAVIC completed its task and turned its specifications over to the international standards authorities. org). 14 committee continued its work despite the launch of the North American initiative, with the objective of creating an international, rather than national standard.
An upgrade to HFC means that a significant portion of the distribution network, specifically the original coaxial trunk cables and portions of the feeder branch cable, has been replaced with optical fiber. At one end of each fiber is the original headend; at the other end is a new device called a fiber node. A fiber node is a combination of bidirectional optical-to-electrical conversion electronics, and what amounts to a two-way line- extender amplifier. All fibers nodes are twoway enabled. An upgrade to HFC means an upgrade to two-way enabled plant.
Also called a grounding block. This block is connected to an earth ground to provide lightning protection. A good-quality ground is required. From the demarcation block, the in-house cable connects to the set-top box and/or television. In the United States, in the past, the cable operator owned and maintained the in-house cable that connected the set-top box. But as regulations changed in America—and elsewhere in the world—the in-house cable has come under the maintenance of the subscriber. More on this in the next chapter.