*****For immediate use March 11th, 2002
NEC Launches 4-Channel 622 Mbps SONET/SDH PHY LSI for Leading-Edge WAN Networking Applications
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| "µPD98413" |
TOKYO, SANTA CLARA, Calif., LONDON, March 11, 2002 - NEC Corporation (NEC) (NASDAQ: NIPNY, FTSE: 6701q.l, TSE: 6701) and its semiconductor affiliates in the United States, NEC Electronics Inc., and Europe, NEC Electronics (Europe) GmbH., today announced the release of a new Asynchronous Transfer Mode (ATM) and Packet Over SONET (POS) physical layer (PHY) chip (product code: µPD98413) that integrates four 622 megabit per second (Mbps) synchronous optical network/synchronous digital hierarchy (SONET/SDH) framer function channels on one chip, making it ideal for third-generation (3G) mobile base station, digital subscriber line access multiplexer (DSLAM) and other high-end wide-area network (WAN) edge equipment.
The number of people using their cellular phones and mobile terminals to access the Web is increasing at an astounding rate, causing a massive increase in the data traffic on mobile networks, and with subscribers to xDSL and other broadband access services growing at a similar pace, we can expect data traffic on xDSL line concentrators to become just as heavy. This product represents a significant step in NEC's commitment to delivering solutions to enable faster mobile base-station and DSLAM equipment to satisfy the demands of this growing customer base.
With its unique understanding of the network market, NEC has now launched the µPD98413, a PHY chip that provides the ideal solution to demands for faster WAN edge equipment. This new chip features four on-chip 622 Mbps SONET/SDH framer function ports, storage of ATM cells and Internet protocol (IP) packets in SONET/SDH frames, an on-chip clock recovery function, and an extensive range of OAM control functions.
Main features of the µPD98413.
Storage of ATM cells and IP packets in SONET/SDH frames
In the µPD98413, ATM cells or IP packets can be received from a high-end device. Received ATM cells or IP packets can be stored in SONET/SDH frames and transmitted via the interface on the circuit side, or can be extracted from the SONET/SDH frames received via the interface and output to the high-end deviceFour on-chip 622 Mbps SONET/SDH framer function ports
Mounting surface has been reduced considerably by integrating four SONET/SDH framer function channels on one chip.On-chip clock recovery function (SERDES)
By integrating a clock recovery function that generates a clock from data received via the interface on the circuit side, a SONET/SDH optical communication interface area can be realized through a µPD98413 + optical module configuration.Extensive range of OAM control functions
The SONET/SDH overhead area used to communicate warnings, faults, and monitoring data can be accessed, as can the DCC channels. A number of operation, administration, and maintenance (OAM) control functions have also been realized to enable execution of warning, fault, and line quality degradation detection, line quality monitoring, and an automatic protection switch (APS) under specific conditions.
About NEC Corporation
NEC Corporation (NASDAQ: NIPNY) (FTSE: 6701q.l) is a leading provider of Internet solutions, dedicated to meeting the specialized needs of its customers in the key computer, network and electron device fields through its three market-focused in-house companies: NEC Solutions, NEC Networks and NEC Electron Devices. NEC Corporation, with its in-house companies, employs approximately 150,000 people worldwide and saw net sales of 5,409 billion Yen (approx. US$43 billion) in fiscal year 2000-2001. For further information, please visit the NEC home page at: http://www.nec.com
About NEC Electronics Inc.
NEC Electronics Inc., headquartered in Santa Clara, California, is one of the leading developers, manufacturers and suppliers of semiconductor products in the United States. Committed to meeting customers' cost, performance and time-to-market requirements, the company offers solutions ranging from standard products to system-on-a-chip (SoC) solutions, as well as customized products for next-generation designs. NEC Electronics also offers customers the benefits of a state-of-the-art manufacturing facility in Roseville, California, and the global manufacturing capabilities of its parent company, NEC Corporation (NASDAQ: NIPNY). For more information about products offered by NEC Electronics Inc., visit the NEC Electronics website at http://www.necel.com.
About NEC Electronics (Europe) GmbH
NEC Electronics (Europe) GmbH, headquartered in Duesseldorf, Germany, is a leading developer, manufacturer and supplier of semiconductor products in Europe. Committed to meeting customers' cost, performance and time-to-market requirements, the company offers solutions ranging from standard products to system-on-a-chip (SOC) solutions, as well as customized products for next-generation designs. NEC Electronics also offers customers the benefit of state-of-the-art manufacturing facilities in Ireland, and the global manufacturing capabilities of its parent company, NEC Corporation. For more information, visit the NEC Electronics website at: http://www.ee.nec.de.
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Terminology
SDH : Synchronous Digital Hierarchy
Indicates the wide area network transmission speed hierarchy used in Japan, Europe and the USA, standardized globally by CCITT SGX VIII (now ITU-TSG13).SONET : Synchronous Optical NETwork
A synchronous optical communication network standard employing SDH used in the USA.ATM : Asynchronous Transfer Mode
A transmission format in which signals such as voice, video, and computer data are digitized, divided into 48 byte lengths, appended with a destination address in the form of a header, and transmitted as 53-byte data cells. The fixed cell length facilitates processing and enables faster communication.POS : Packet Over SONET DSLAM : Digital Subscriber Line Access Multiplexer
A line concentration device that integrates multiple xDSL lines and is connected to a communication devices such as a router to operate as a bridge to high-speed, high-capacity backbones. Used collectively with an xDSL modem. DSLAM devices are used inside a central telephone exchange to concentrate xDSL lines that are separated from the telephone lines by MDF, etc. Because these devices have the functions of an xDSL modem, they cannot communicate unless they support the same specifications as the xDSL modem used by the subscriber.WAN : Wide Area Network
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