You are here

New PDF release: Access Technologies: DSL and Cable

By James H. Green

Show description

Read Online or Download Access Technologies: DSL and Cable PDF

Similar software: office software books

David Blumenthal's The Heart of Power: Health and Politics in the Oval Office PDF

This is often a useful booklet for an individual drawn to the making of wellbeing and fitness coverage within the US executive. rather well researched and written by means of specialists within the box. i like to recommend it such a lot hugely.

Bill Jelen's Excel for Auditors: Audit Spreadsheets Using Excel 97 PDF

Supplying the instruments and strategies important for locating blunders and fraud in audits, this advisor for auditors seeking to greater validate their Microsoft Excel spreadsheets presents ideas for acting a possibility review and accumulating spreadsheet and different information from corporation platforms. acting audit information research utilizing facts and analytical administration features and pinpointing the typical error in spreadsheets with targeted Excel assessments is mentioned, as are the easiest practices for mistakes and fraud prevention while constructing spreadsheets.

Get Excel Basics to Blackbelt: An Accelerated Guide to Decision PDF

A singular examine the ability of Excel. nice for individuals new to Excel2007, but in addition simply transferable to Excel2003. I had no inspiration it used to be this simple to strengthen notable visible purposes in Excel - The seamlessness of integration among Excel and different purposes in addition to the net used to be a brand new one for me besides.

Get Optimizing Back Office Operations: Best Practices to PDF

Based on specialists, a customary 1000000000 greenback corporation spends nearly $27 million on pointless operating capital and inefficient processing features simply because they lack visibility into the monetary offer chain. Optimizing again place of work Operations: top Practices to maximise Profitability makes use of examples and case reviews to teach how price optimization—and no longer expense reduction—in the center again place of work operations is the perfect method of maximizing profitability and firm worth.

Additional resources for Access Technologies: DSL and Cable

Sample text

For short distances, as in the EIA/TIA 568B structured cabling standards, precisely manufactured category 7 twisted-pair wire can carry bandwidths of 600 MHz for distances of up to 100 m. Wire centers in most communities have existed in the same location for decades. Wire centers are located to achieve a rea- Telephone Local Loop Characteristics 39 sonable balance between cost and transmission quality. The cable connecting the central office to subscribers is known as feeder cable. At distribution points the cable is connected to the distribution cable, which terminates at the subscriber’s premises.

With 5 bytes of header per cell, the overhead is approximately 10 percent. Equipment vendors claim from 16 to 20 voice channels per DSL line, but of course that depends on the actual data rate the line can sustain and also on the amount of bandwidth needed for data.

As we will discuss in Chap. 9, the passive optical network (PON) has advocates for both protocols, and the same is true of DSL. IP has the advantages of being less complex and having a broad range of applications and software drivers to support it. ATM is more complex and expensive, but it has QoS built into the design, and many of the ILECs use it as the backbone of their DSL networks. Frame Relay Toward the end of the 1980s, a new protocol known as frame relay began getting attention. Unlike fixed circuits, frame relay 34 Access Technologies: DSL and Cable operates on the principle of access circuits from multiple customers that are statistically multiplexed into the carrier’s backbone.

Download PDF sample

Rated 4.92 of 5 – based on 30 votes