Conexant Debuts Industry's First Single-Chip, Multiport Line Interface Units for High-Bandwidth Communications.NEWPORT BEACH, Calif.--(BUSINESS WIRE)--March 30, 1999-- Conexant delivers low-cost, low-power solution for communication equipment suppliers to implement next-generation network access services Conexant Systems Inc. (Nasdaq:CNXT) Tuesday announced a family of two- and three-channel line interface units (LIUs) designed to support high-bandwidth communications applications. Consisting of independent data transceivers capable of operating over coaxial cable at the E3 rate of 34.368 Mbs, the DS3 rate of 44.736 Mbs and the STS-1 rate of 51.84 Mbs, these LIUs let communications equipment manufacturers implement high-speed communications protocols at significantly lower power and cost than alternative solutions. These devices enhance Conexant's broad offering of semiconductor system solutions for such increasingly complex and cost-sensitive multi-service network access products as digital cross-connect systems, high-end routers, ATM switches, channelized Refers to an architecture that transmits data in channels. It often refers to the 64 Kbps channels in T1 lines, which were originally developed to handle digitized voice streams (TDM). See TDM. line aggregation units, channel server units and multiplexers. Conexant's new LIUs incorporate the company's mixed-signal CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes. process technology and systems expertise to deliver a high-density, low-power solution that reduces parts count and board space while achieving the industry's lowest cost per port. They also incorporate Conexant's expertise as one of the largest suppliers of ICs for T1/E1 digital data communications over twisted-pair copper wire, including T1/E1 LIUs and framers, a channelized HDLC (High-level Data Link Control) A data link protocol from ISO for point-to-point communications over serial links. Derived from IBM's SDLC protocol, HDLC has been the basis for numerous protocols including X.25, ISDN, T1, SS7, GSM, CDPD, PPP and others. or ISDN ISDN in full Integrated Services Digital Network Digital telecommunications network that operates over standard copper telephone wires or other media. link layer controller, and a multiprotocol communications controller that provides a complete physical and link layer solution in just two chips. These devices can be used as a data transceiver for up to 1,350 feet of coaxial cable in an on-premises environment, exceeding the reach of competitive devices. Conexant has used a proprietary, advanced CMOS process for its DS3/E3/STS-1 LIUs that allows the integration of precision analog signal processing Analog signal processing is any signal processing conducted on analog signals by analog means. "Analog" indicates something that is mathematically represented as a set of continuous values. This differs from "digital" which uses a series of discrete quantities to represent signal. with high-speed digital circuitry into a 40 to 50 percent lower-power and significantly lower-cost solution than competitive alternatives. These devices provide the physical layer interface between a data source and framer or other terminal-side equipment, and the electrical cable used for data transmission. By effectively integrating two or three independent data transceivers onto a single chip, these products provide unmatched economies of scale for concentrator applications in which two or three DS3 or STS-1 channels are concentrated into a single STS-3 channel. This integration also reduces the number of external components required, saving valuable board space. "The growth in demand for voice and data services is continuing to raise the bar for bandwidth, port density and flexibility in the network infrastructure," said Jeremy Bicknell, physical layer product manager for Conexant's Network Access Division. "As users transition from T1/E1 services to higher-speed services like T3/DS3, E3 and STS-1, equipment suppliers need higher port density at these high-speed rates. With its multi-standard design and easy programmability, Conexant's product provides the ideal solution for OEMs worldwide to implement next-generation solutions for multi-service network access." Transmit LIU LIU Linköpings Universitet (Sweden) LIU Long Island University (New York) LIU Line Interface Unit LIU Lightguide Interconnection Unit (AT&T) LIU Laugh It Up Features The use of programmable pulse filtering in each independent transmit section simplifies system implementation by ensuring full compliance with ANSI (American National Standards Institute, New York, www.ansi.org) A membership organization founded in 1918 that coordinates the development of U.S. voluntary national standards in both the private and public sectors. It is the U.S. member body to ISO and IEC. T1.102-1993 cross-connect pulse-mask standards. Independent on-chip band gap references are included to enable precise pulse shape generation. The large dynamic range and minimal requirement for external components reduces cost and complexity of test and monitoring functions in a typical DS3 or E3 front-end design. Receive LIU Features The receiver sections for each port are completely separate and feature automatic gain control provided by a variable gain amplifier, clock recovery phase-locked loop (PLL PLL - phase-locked loop ), adaptive receive equalizer and signal slicer. The sophisticated receive equalizer automatically adapts to different cable types, such as type 734 and 728, as well as flat loss introduced by many in-service testing and redundant cabling configurations. In addition, these devices feature alarms for coding violations and loss of signal, a built-in B3ZS/HDB3 encoder/decoder, as well as full loopback capability. On-chip facilities for network management and test eliminate the need for external circuitry. In effect, significant external components have been eliminated, with the exception of coupling transformers, termination resistors and supply bypass capacitors. Both devices meet interoperability requirements as defined by the Bellcore GR499 and GR253 jitter specifications. Conexant's growing family of network-access solutions provides equipment designers with a broad portfolio of interoperable silicon system solutions for next-generation multiservice network-access products. This portfolio encompasses 56Kbps central-site modems, digital subscriber line See DSL. (communications, protocol) Digital Subscriber Line - (DSL, or Digital Subscriber Loop, xDSL - see below) A family of digital telecommunications protocols designed to allow high speed data communication over the existing copper telephone lines between end-users and (DSL DSL in full Digital Subscriber Line Broadband digital communications connection that operates over standard copper telephone wires. It requires a DSL modem, which splits transmissions into two frequency bands: the lower frequencies for voice (ordinary ), as well as T1/E1 and T3/E3/DS3/STS-1 components at the physical level. It also includes asynchronous transfer mode See ATM. (communications) Asynchronous Transfer Mode - (ATM, or "fast packet") A method for the dynamic allocation of bandwidth using a fixed-size packet (called a cell). See also ATM Forum, Wideband ATM. ATM acronyms. Indiana acronyms. (ATM) devices for connection to the corporate or Internet backbone, and high-speed network interface devices for attaching to the LAN (Local Area Network) A communications network that serves users within a confined geographical area. The "clients" are the user's workstations typically running Windows, although Mac and Linux clients are also used. and WAN. Price & Availability Samples of the CN8332 and CN8333 are available now, and both are packaged in an 80-pin ETQFP. They operate with a single 3.3V power supply, and feature a -40 to +85 C temperature range. The CN8332 is priced at $42 in OEM (Original Equipment Manufacturer) The rebranding of equipment and selling it. The term initially referred to the company that made the products (the "original" manufacturer), but eventually became widely used to refer to the organization that buys the products and quantities and the CN8333 is priced at $55 in OEM quantities. Evaluation boards consisting of the CN8333 in conjunction with the Bt8330 (single chip DS3/E3 framer in 80-pin MQFP See QFP. ) are available to assist in hardware development of stand-alone applications as well as supporting rapid development of a complete DS3/E3 subsystem. Conexant Systems Inc. is the $1.2 billion company that was created when Rockwell International spun off its semiconductor systems business to shareowners in December 1998. Conexant is the world's largest independent company focused exclusively on providing semiconductor products for communications electronics. The company aligns its business into five product platforms: Personal Computing, Personal Imaging, Wireless Communications, Digital Infotainment and Network Access. With more than 30 years of experience in developing analog modem technology, the company leverages its expertise in mixed-signal processing and communications technology to deliver integrated systems and semiconductor products for a broad range of communications applications. These products facilitate communications worldwide through wireline voice and data communications networks, cordless and cellular wireless telephony systems, and emerging cable and wireless broadband communications networks. Certain matters discussed in this news release regarding future network access products may constitute forward-looking statements, such as discussions of product release dates, product availability, market acceptance and customer demand. Such forward-looking statements involve certain risks and uncertainties, including the timely release of products by manufacturing suppliers, the availability of components and technologies from partners, suppliers and licensors, the acceptance of applicable technologies, the impact of competitive markets, products and pricing, and other risks detailed from time to time in the company's SEC reports, including the reports on Form 10-Q for the quarter ending January 1, 1999. Actual results may vary materially. Note to Technology Editors: Please see glossary below for definition of terms used in this release. Definitions of Terms CMOS: Complementary Metal Oxide Semiconductor See CMOS. (integrated circuit) Complementary Metal Oxide Semiconductor - (CMOS) A semiconductor fabrication technology using a combination of n- and p-doped semiconductor material to achieve low power dissipation. . An integrated circuits manufacturing technology known for requiring less electricity than other methods. HDLC: High-level Data Link Control (networking) High-level Data Link Control - (HDLC) A general-purpose data link control protocol defined by ISO for use on both point-to-point and multipoint (multidrop) data links. It supports full-duplex, transparent-mode operation. . An ITU-TSS ITU-TSS International Telecommunications Union - Telecommunications Standards Sector link layer protocol standard for point-to-point and multi-point communications. T1: Digital transmission link (level 1) with a capacity of 1.544 Mbps and is the standard for N. America. T1 uses two pairs of normal twisted wires, the same as you'd find in your house. T1 normally can handle 24 voice conversations with each conversation being digitized at 64 Kbps but with more advanced digital voice encoding techniques, it can handle more voice channels. E1: Digital transmission link (level 1) with a capacity of 2.048 Mbps and is the standard for Europe. T3: Digital transmission link (level 3) with a capacity of 44.736 Mbps and is the standard for N. America. Capable of handling 672 voice conversations. T3 runs on fiber optic and is further up the digital carrier hierarchy. E3: Digital transmission link (level 3) with a capacity of 34.368 Mbps and is the standard for Europe. DS3: Digital signal level 3. The N. American digital hierarchy signaling standard for transmission at 44.736 Mbps that is used by T3 carrier. Supports 28 DS1s plus overhead. ISDN: Integrated Services Digital Network Integrated services digital network (ISDN) A generic term referring to the integration of communications services transported over digital facilities such as wire pairs, coaxial cables, optical fibers, microwave radio, and satellites. . An international standard that defines a digital end-to-end network operating at 1.544 Mbps or slower and supports voice, data, image and video simultaneously. ITU: International Telecommunications Union See ITU. (body, standard) International Telecommunications Union - (ITU) ITU-T, the telecommunication standardisation sector of ITU, is responsible for making technical recommendations about telephone and data (including fax) communications systems for PTTs and suppliers. . An international body of member countries whose task is to define recommendations and standards relating to the international telecommunications industry. STS-1: Synchronous Transfer Signal (level 1); SONET standard for transmission over OC-1 optical fiber at 51.84 Mbps. STS-3: Synchronous Transfer Signal (level 3); SONET standard for transmission over OC-3 optical fiber at 155.84 Mbps. SONET: Synchronous Optical Network (networking) Synchronous Optical NETwork - (SONET) A broadband networking standard based on point-to-point optical fibre networks. SONET will provide a high-bandwidth "pipe" to support ATM-based services. . An ANSI (American National Standards Institute See ANSI. (body, standard) American National Standards Institute - (ANSI) The private, non-profit organisation (501(c)3) responsible for approving US standards in many areas, including computers and communications. ANSI is a member of ISO. ) standard for transmitting information over optical fiber. This standard is used/accepted in the US, Canada and is a variation of the SDH (Synchronous Digital Hierarchy) The European counterpart to SONET. See SONET. SDH - Synchronous Digital Hierarchy International standard. SDH: Synchronous Digital Hierarchy (communications, standard) Synchronous Digital Hierarchy - (SDH) An international digital telecommunications network hierarchy which standardises transmission around the bit rate of 51.84 megabits per second, which is also called STS-1. . The ITU-TSS International standard for transmitting information over optical fiber. |
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