Adaptec Unveils New ATM Technology for Enterprise Servers; AIC-5915 Chip Enables Next Generation of ATM Connectivity.MILPITAS, Calif.--(BUSINESS WIRE)--Feb. 3, 1997--Adaptec unveiled the first example of its newest ATM technology today: an ATM-to-PCI SAR (Segmentation And Reassembly) The protocol that converts data to cells for transmission over an ATM network. It is the lower part of the ATM Adaption Layer (AAL), which is responsible for the entire operation. See AAL. SAR - segmentation and reassembly (Segmentation And Reassembly segmentation and reassembly - segmentation ) chip known as the AIC-5915. The AIC-5915 is specifically developed to meet rigorous server performance needs at the highest end of the server power spectrum -- enterprise servers that form the backbone of corporate computing. The chip features low CPU CPU in full central processing unit Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit. utilization, low PCI bus utilization, high throughput, and high bandwidth for applications in PCI (1) (Payment Card Industry) See PCI DSS. (2) (Peripheral Component Interconnect) The most widely used I/O bus (peripheral bus). NICs and other network attached devices. It reinforces Adaptec's network focus around "server-centric" solutions that maximize server performance. "Internet and intranet demands have pushed enterprise servers to the limit," said Gary Law, vice president of marketing for Adaptec's network products group. "The AIC-5915 chip is designed to give those servers new life with network multimedia capability, huge client and workgroup server bandwidth and connectivity, and massive data pipes to move information fast and efficiently. AIC-5915 means servers will work harder and smarter." About AIC-5915 -- chip features and benefits The AIC-5915 is Adaptec's third generation ATM SAR chip and supports 16,000 open virtual circuits (VCs) and up to 8,000 active virtual circuits. These virtual circuit counts allow the chip to connect up to 16,000 users, any 8,000 of whom may be simultaneously using an AIC-5915-based network. The AIC-5915 ATM SAR also supports an internal RISC processor to implement Available Bit Rate (ABR (1) (AutoBaud Rate detect) The analysis of the first characters of a message to determine its transmission speed and number of start and stop bits. (2) (Available Bit R ) flow control (the management of ongoing data transmissions) as well as other types of flow control including Constant Bit Rate (CBR (1) (Computer-Based Reference) Reference materials accessible by computer in order to help people do their jobs quicker. For example, this database on disk! (2) (Constant Bit Rate) A uniform transmission rate. ), Variable Bit Rate (VBR (1) See MP3 VBR. (2) (Variable Bit Rate) Refers to a communications or computer channel that changes its transmission speed based on any number of criteria. ), and Unspecified Bit Rate (UBR (Unspecified Bit Rate) An asynchronous transfer mode (ATM) level of service that does not guarantee available bandwidth. It is very efficient, but not used for critical data. ). This combination of features allows the AIC-5915 to handle a large number of both high speed and low speed VCs with the Quality of Service (QoS) required by any individual application. These technology features allow the AIC-5915 to handle a mix of users with various connection speeds in a real-world server environment. Sophisticated memory management techniques implemented in the AIC-5915 silicon allow for real-time adjustment of on-card buffers to maximize available VCs, minimize bus utilization, and optimize overall performance. A key feature of the AIC-5915 is low PCI bus utilization. PCI bus utilization is a parameter that gauges how efficiently data is moved across the PCI bus, which is a key data transmission point within a computer's subsystems. In enterprise servers, which support several PCI adapters for storage and network attachment, PCI traffic can become overwhelming. Especially in multimedia-laden networks (such as an ATM network), efficient use of the PCI bus becomes paramount to avoid data bottlenecks and maintain overall server effectiveness. The AIC-5915 is aimed at enterprise servers and other network attached devices that require ATM's bandwidth, quality of service (QoS), and multimedia capability. Enterprise servers are high bandwidth, high capacity servers that connect thousands of users and/or smaller groups of "workgroup" servers. As the term "enterprise server" suggests, these systems are responsible for mission-critical applications that run enterprises or entire businesses. Other ATM products from Adaptec Adaptec offers a full range of ATM adapters, including ATM 25 and ATM 155 workgroup server adapters, in copper/UTP and fiber interfaces. More information on those ATM adapters and Adaptec's Fast Ethernet adapters is available on the Web at http://www.adaptec.com/networking. About Adaptec Adaptec provides bandwidth management technologies for organizations building the global information infrastructure. Its high-performance I/O (Input/Output) The transfer of data between the CPU and a peripheral device. Every transfer is an output from one device and an input to another. See PC input/output. I/O - Input/Output , connectivity, and network products are incorporated into the systems and products of major computer and peripheral manufacturers. Founded in 1981 and headquartered in Milpitas, Calif., Adaptec (NASDAQ NASDAQ in full National Association of Securities Dealers Automated Quotations U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on :ADPT ADPT Automated Data Processing/Telecommunications ADPT Adaptec Corporation (stock symbol) ADPT Adaptive Prediction ADPT Auger Depth Profiling Technique ADPT Automated Data Processing Telecommunications ADPT Adapter ) employs 2500 people worldwide in design, manufacturing, sales, service and distribution. Adaptec's home page is http://www.adaptec.com . CONTACT: Adaptec, Milpitas Eric Brown, 408/957-6645 ebrown@corp.adaptec.com |
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