About of DIGITAL ACCESS CARRIER SYSTEM
Multi-Carrier Digital Communications: Theory and Applications of OFDM
. Although OFDM has been chosen as the physical layer standard for a diversity of important systems, the theory, algorithms, and implementation techniques remain subjects of current interest.. OFDM has been chosen as the physical layer standard for a variety of important systems and its implementation techniques continue to evolve rapidly.. A unified presentation of OFDM performance and implementation over a wide variety of channels, including both wireline and wireless systems, is made.. This will prove valuable both to developers of such systems and to researchers and graduate students involved in analysis of digital communications.. Because of the particularly rapid development of wireless systems employing OFDM, the authors introduced a section early in the text on wireless channel fundamentals.. Several chapters describe and analyze the sub-systems of an OFDM implementation, such as clipping, synchronization channel estimation, equalization, and coding.
Broadcom Corporation - Semiconductor Solutions for Bluetooth, Gigabit Ethernet, Enterprise Switching, Wireless LAN, Digital TV, DSL, Cable Modems, Set-Top Boxes, Cellular and VoIP
>> Features 802.11n Whitepaper >> Products World's First 7.2 Mbps True Single-Chip HSDPA Mobile Phone Processor IP Phone Whitepaper Advancing Wireless Gaming with Broadcom Bluetooth® and Wi-Fi® Intensi-fi™ 06/12/06 - 06/05/06 06/05/06 Broadcom's cable product line consists of integrated circuits and software for cable modems, residential gateways, cable set-top boxes, cable modem termination systems (CMTS), and other home entertainment equipment.. With a pure digital CMOS approach and excellent blocking performance, Broadcom's Bluetooth® chipsets and system solutions provide the technology to make wireless personal area networking a reality.. Broadcom offers a family of HSDPA (High-Speed Downlink Packet Access), WCDMA (Wideband Code Division Multiple-Access), EDGE (Enhanced Data Rates for GSM Evolution), GPRS (General Packet Radio Services) and GSM (Global System for Mobile Communication) baseband processors for use in cellular handsets, PC cards and other wireless-enabled consumer electronics.
: : Hitrontech - HTC-1100E Digital Loop Carrier System : :
> > > > Hitron Products Communication Information Technology Next Generation Access Network HTC-1100E Broadband Digital Loop Carrier System Overview The HTC-1100E Digital Loop Carrier System (DLC) is a new generation that is an access platform capable of delivering any service from POTS to xDSL over copper, fiber or wireless transport media.. With the modular building block approach, HTC-1100E can support flexible network topologies and system requirements via various transmission medias, to provide a wide range of telecommunication services to subscribers.
linux category @ LINUX.SYS-CON.COM
. today announced acollaboration using IBM's Deep Computing Visualization (DCV) technologythat can provide AvarSYS customers with visualization systems, particularlythose customers migrating from Silicon Graphics Incorporated (SGI)technolog.... 15, 2006 01:00 PM By Marketwire BlueArc Corporation, the world leader innetwork storage innovation, announced today that the Center for Languageand Speech Processing at The Johns Hopkins University has implemented a newstorage infrastructure using a BlueArc Titan storage system as the centralhub.. 15, 2006 09:00 AM By Marketwire and a frozen application or systembottleneck can disrupt online transactions.. today announced that its software solutions will integrate with the new HP BladeSystem c-Class architecture to provide customers a capable and proven platform for implementing file serving and database consolidation.. 14, 2006 01:11 PM By Marketwire BlueArc® Corporation, provider of theworld's highest performance, most scalable, simple to manage networkstorage systems, today announced that University of Minnesota has selectedthe company's Titan Storage System as a data repository for theUniversity's Sup...
info: DIGITAL ACCESS CARRIER SYSTEM
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Product Advisor | Digital Loop Carriers | Current Analysis
. (6/2/2006) Price: $595 about head-to-head product comparisons Lucent AnyMedia Access System (AMAS) The AnyMedia Access System has proven a key asset in Lucent Technologies’ broadband access portfolio, combining the voice capabilities of a traditional DLC with remote DSLAM functionality, countering more challenging DLC competition.. (6/5/2006) Price: $595 about head-to-head product comparisons Tellabs 1020 Multi-Service Access System (formerly DMAX 1120) Tellabs remains the #2 vendor in the North American DLC/MSAP market on the strength of its AFC-sourced product line, but as the sector evolves toward IP/Ethernet-based access solutions, Tellabs’ installed base is vulnerable to rival encroachment.. Buying Criteria Scalability Scalability is the capability of a system to expand to meet growing needs of users or service providers.. Support for Traditional Voice Services Support for Traditional Services is the ability of a system to preserve traditional services (commonly referred to as legacy services) such as different types of voice services as many carriers must fulfill economic and regulatory obligations.
Product Advisor | Digital Loop Carrier (Europe) | Current Analysis
. Buying Criteria Support for Traditional Voice Services Support for traditional services is the ability of a system to preserve traditional services (commonly referred to as legacy services), such as different types of voice services, as many carriers must fulfil economic and regulatory obligations.. Scalability Scalability is the capability of a system to expand to meet growing needs of users or service providers.. Packet Migration Flexibility Packet Migration Flexibility is the capability of a system to support new packet capabilities and services while preserving carrier investment in traditional circuit technologies that generate proven revenue streams.. Price Price reflects the equipment cost of interfacing a user, or community of users, to the system and is usually measured in terms of price per POTS port and price per DSL port.. The DSL port density per rack defines the total number of physical connections a rack will support, calculated by the number of systems that can be fitted into a typical 2200 mm rack.
ViaSat, Inc. - Skylinx Digital Telephony Network System
. A Skylinx system makes it possible for you to: Provide telephone service to rural and geographically isolated areas.. Simple extensions to the Skylinx system allow the additional of Internet connectivity.. Product Literature For more information on the Skylinx Digital Telephony Network System, visit our Introducing a high-speed upgrade for our Skylinx Satellite Telecommunications Network.. The Skylinx system offers an easy path to upgrades and added features with its multi-slot design that lets users plug new channel units, such as the HSCU, into their Skylinx chassis.. to discuss your telephony network system needs.. Press Releases Record Orders, Revenues, Earnings and Cash Flows for Fiscal 2006 LinkStar VSAT System Certified DVB-RCS Compliant by SatLabs Airborne Networking Waveform Development Order for MIDS Tactical Network Term...
Telecommunications Glossary Telecom Dictionary - Carrier Access Billing D
. A part of a Tl carrier system.. DACS digital access & cross-connect system DARPA Defense Advanced Research Projects Agency Data Compression Data compression is a technique that removes redundancy in transmitted bit patterns to reduce transmission rates by 20% to 200%.. DCE data circuit terminating equipment DCP digital communications protocol DCS digital cross-connect system DDD direct distance dialing DDN Defense Data Network Digit L Digital L is another amplitude condition that represents a binary digit 0.. Digital Carrier Systems Digital Carrier Systems are carrier systems for digital signals that uses regenerative versus linear repeaters and time division multiplexing.. Digital Cross Connect System (DCS) DCS is a new generation of switching/multiplex equipment that permits per-channel DS0 (64 kbps) electronic cross-connection from one T1 transmission facility to another, directly from the constituent DSl signals.. Commonly referred to as "DACS" (digital access and cross connect system), although this is a trademark of AT&T.
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Digital carrier system » Digital carrier system May 18, 1998 12:00 PM Access 3 FREE White Papers Fine tune your IMS deployment strategy by learning from IMS early adopters, learn how to master the triple play, and ensure your IMS implementation meets requirements.. The GDSL digital subscriber carrier system uses DSL technology to provide multiple voice or data channels or high-speed Internet or LAN access on a single copper pair.. The system supports up to eight POTS lines with drop and continue flexibility, up to two ISDN lines plus POTS, or 384 kb/s data for high-speed Internet access or video.
IEC: Digital Loop Carrier (DLC)
. Although that need did not materialize, it was still a good system for delivering high bit-rate services such as T1, ISDN specials, and DDS.. As far as transport on the network side, most of these systems were designed for fiber.. So, the key element as far as deployment of this system was concerned was making sure that fiber ran between the central office and the remote subscribers terminal.. Nonetheless, if fiber was in place between the two locations, this was a very good system and the intent was to serve large numbers of customers.. As with the previous carrier system, this system was economically driven.. The system aimed at advanced services distributed over wide areas, which was the important downfall of this type of device.. All of those services were important factors in deploying this type of system.. On the network side, the system was typically fiber.. Eventually, some of the systems migrated to copper because it became apparent that fiber was not always available in those types of network pathologies.
T-Carrier Systems ( Digital Signal Level 1, DS0, Digital Signal Level Hierarchy, DS1, Digital Signal Level 4, DS3, DS2, DS4, DS Level Hierarchy, Digital Signal Level 3, Digital Signal Level 2, and Digital
IT Information: White Papers, Product Literature, Webcasts and Case Studies - Create your personalized Bitpipe Service! Jun 16, 2006 Search Bitpipe: | Browse Bitpipe Dictionary: > > > T-Carrier Systems -- | Also called: Digital Signal Level 1, DS0, Digital Signal Level Hierarchy, DS1, Digital Signal Level 4, DS3, DS2, DS4, DS Level Hierarchy, Digital Signal Level 3, Digital Signal Level 2, and Digital Signal Level 0 Recent Vendor Reports on T-Carrier Systems by NetScout Systems, Inc.. (PRODUCT LITERATURE: December 1, 2004) Topics: | Recent T-Carrier Systems Products DS3 Hi-Cap Test System from Anritsu Corporation The MP1033A is a combination access, test and performance monitor system for DS3 circuits.
Law Enforcement Access to Communications Systems in a Digital Age September 8, 2004
. Dempsey Executive Director Center for Democracy & Technology before the Subcommittee on Telecommunications and the Internet House Committee on Energy and Commerce Law Enforcement Access to Communications Systems in a Digital Age September 8, 2004 Chairman Upton, Congressman Markey, and Members of the Subcommittee, thank you for the opportunity to testify today.. Especially in the face of terrorism, the question of law enforcement access to communications systems is vitally important.. Instead of making the Internet look like the telephone system of the past, the FBI and other law enforcement agencies need to acquire in-house capabilities to analyze digital communications.. Such a centralized system was reliable, but it was limited.. In applying CALEA to the PSTN, the FCC adopted an elastic interpretation of CALEA's definitions, requiring carriers to build into their systems surveillance features that went beyond what had been available to law enforcement in traditional systems.
DIGITAL ACCESS CARRIER SYSTEM ?
Verizon Partner Solutions | Getting Started System Connections: Access Web
Search for in Getting Started System Connections: Access Web System Connections Web 1 of 3 (Access Services) (CSG) is Verizon’s web application for Access Service Requests (ASRs).. NOTE: In order to maintain a high level of efficiency in CSG, system IDs and Passwords will be monitored and access for the User ID(s) will be cancelled if there is no activity for a period of six months.. Complete the form and then select the 'Submit' button at the bottom of the form to send your application to CSG system administration.. System and Browser Requirements Verizon supports Netscape Communicator 4.6 and 4.7 and Internet Explorer 4.0 and 5.0.
Data Local Exchange Carriers See: Data Service Unit See: DECT (Digital Enhanced Cordless Telecommunications) Is a digital wireless technology that is being used for local cordless coverage in both home and corporate phone systems.. A very flexible standard, it can be applied to cordless PBX, wireless local loop, and dual mode GSM/DECT systems.. DLC (Digital Loop Carrier) Network transmission equipment that is used to transfer digital data between a telephone company's central office and an office building, business complex or new area outside the current local loop over a copper T-carrier system or E-carrier line, an optical fiber cable or a wireless connection.. Domain Name System See: DRM See: DSL (Digital Subscriber Line) A technology designed to allow high-speed transmission of digital data over the copper telephone lines of the telephone network to homes and businesses.. The standards are based on the ISO MPEG-2 standard, but extend this to cover system specific details to ensure a fully specified system.
Lucent Technologies to integrate digital subscriber line capabilities into its SLC digital loop carrier systems; Lucent selects Westell as ADSL supplier
. With Lucent's new offer, high-speed data services can be added incrementally based on customer demand by simply "plugging in" DSL channel units into a service provider's existing SLC-2000 or SLC Series 5 systems.. Lucent has selected Westell Technologies to develop the channel units to be inserted into Lucent's SLC systems.. "Our new solution offers service providers a quick, economical way to deliver high speed data services to their customers by simply installing a card in their existing SLC system, " said Linda Manchester, director of business management for Lucent access solutions.. "Being able to drop in the DSL card in the remote terminal and offer high speed data service off that existing SLC makes for an attractive, revenue-generating solution for our customers." Similar DSL capabilities, using Westell's SuperVision Digital Subscriber Line Access Multiplexer (DSLAM), can be incorporated into Lucent's Switched Digital Broadband Access System (SDBAS), a fiber-to-the-curb platform developed jointly with BroadBand Technologies.
Define The speed of... - a definition from Whatis.com - see also: speeds, data rates
. Key: "T" = T-carrier system in U.S., Canada, and Japan...."DS"= digital signal (that travels on the T-carrier or E-carrier)..."E" = Equivalent of "T" that uses all 8 bits per channel; used in countries other than U.S.
News @ Cisco: RELTEC and Cisco Systems Announce Integration of Digital
Loop Carrier DSL Solutions for Commercial Deployment
| Log In | Guest News@Cisco News Release RELTEC and Cisco Systems Announce Integration of Digital Loop Carrier DSL Solutions for Commercial Deployment Enable Service Providers to Deliver High-Speed Internet Services to Expanded Subscriber Base ATLANTA, GA -- June 9, 1998 -- RELTEC Access Systems and Cisco Systems, Inc.. Next Generation Digital Loop Carrier (NGDLC) system that uses the Cisco 6100 series Advanced DSL Access Multiplexer.. DLC solutions are an important aspect of DSL service deployment as many service provider customers, particularly in suburban areas, receive telephone services through connections from DLC systems rather than from central offices.. The combination of Cisco's DSL access products with RELTEC's NGDLC results in a significant increase in addressable markets for service providers, " said Kent Savage, Director of DSL Operations for Cisco Systems.. The Cisco 6100 series that RELTEC is integrating into their NGDLC system has been temperature-hardened for outside plant deployments.