Spirent Communications Announces Channelized OC-48 Bit Error Rate Testing Capability; Includes the Same Award-Winning Features as OC-192c Channelized BERT Available Now.Business Editors/High-Tech WritersHONOLULU--(BUSINESS WIRE)--Feb. 12, 2001 Spirent Communications, the world leader in performance analysis solutions, today announced that the introduction of 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. Bit Error Rate Test (BERT (Bit Error Rate Test) An analysis of network transmission efficiency that computes the percentage of bits received in error from the total number sent. ) capability on its Adtech AX/4000 system. Currently, the OC-192 and OC-48 test modules allow powerful SONET/SDH Layer 1 transmission performance analysis on optical cross-connects, switches, ADM, and DWDM (Dense WDM) The term given to wavelength division multiplexing (WDM) when significantly more channels were being added. Since WDM is increasingly more "dense" all the time, both terms are used synonymously. See WDM. DWDM - wavelength division multiplexing systems. The introduction of the channelized capability allows multiple, independent test streams to be generated, analyzed and reported upon simultaneously in real time. Spirent's Adtech graphical user interface graphical user interface (GUI) Computer display format that allows the user to select commands, call up files, start programs, and do other routine tasks by using a mouse to point to pictorial symbols (icons) or lists of menu choices on the screen as opposed to having to (GUI) covers all layers of the integrated platform, which provides consistency and simplifies user interaction. "Many service provider implementations of OC-48 and OC-192 are channelized," said Alan Sguigna, vice president of marketing for Spirent Communications, Adtech Division. "Validation of optical systems by development, quality assurance and manufacturing engineering must be able to measure channelization chan·nel·ize tr.v. chan·nel·ized, chan·nel·iz·ing, chan·nel·iz·es 1. To make, form, or cut channels in. 2. To direct through a channel. performance." The channelized BERT capabilities are available as software options on Spirent's Adtech AX/4000 OC-192 and OC-48 Packet over SONET A metropolitan area network (MAN) or wide area network (WAN) transport technology that carries IP packets directly over SONET transmission without any data link facility such as ATM in between. (POS (1) See point of sale and packet over SONET. (2) "Parent over shoulder." See digispeak. POS - point of sale ) test modules. A single module can cost-effectively act as channelized, concatenated, true Layer 1 SONET BERT and/or POS. Each module possesses full SONET/SDH alarm capabilities and can measure the amount of time a device takes to perform SONET/SDH Automatic Protection Switchover (APS). The modules are also compliant with the recommended standards set forth by the ITU and 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. . "With the convergence of the optical and routing domains many vendors require a single test solution to validate both SONET/SDH equipment and Terabit Routers," said Sguigna. "Our unique solution delivers the capability to validate MPLS (1) (MultiProtocol Lambda Switching) The earlier name for GMPLS. See GMPLS. (2) (MultiProtocol Label Switching) A standard from the IETF for including routing information in the packets of an IP network. , BGP-4, and OSPF routing control and data plane performance, as well as the physical layer characteristics." The OC-192 concatenated, channelized, POS, and BERT module is available now. Channelized OC-48 BERT will be available in second quarter. About Spirent Communications Spirent Communications is the world leader in performance analysis solutions. The company designs and manufactures Abacus, Adtech, DLS, GSS, Hekimian, Metrohm, SmartBits, Net-HOPPER, and TAS products to provide customers with a full-breadth of comprehensive and integrated performance analysis solutions. Spirent Communications' solutions accelerate development and minimize the risk of deployment of new communications technologies and services. Spirent Communications' award winning hardware and software applications are used by more than 2,500 of the world's leading network and terminal equipment manufacturers, network service providers, corporate enterprises and test laboratories to verify and measure the performance and services of networks and communications devices. For more information on Spirent Communications or its products, visit the web site at www.spirentcom.com or call 800/927-2660. |
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