TPI Introduces the TPI 750 Portable ATM Analyzer.SALEM, Va.--(BUSINESS WIRE)--April 1, 1997-- Service providers, equipment manufacturers get complete ATM testing in rugged, portable unit TPI (Tracks Per Inch) The measurement of the density of the storage channels on a disk or tape. Track density on magnetic disks has reached 125,000 tpi (125 Ktpi). See bpi, areal density and magnetic disk. , a division of TTC (NYSE NYSE See: New York Stock Exchange :DYT), announced Tuesday the availability of the TPI 750 ATM Tester -- a complete ATM test instrument in a portable unit. The rugged unit is designed to meet the needs of service providers and equipment manufacturers as they turn up and provision DS1, DS3, and OC3c ATM networks at the customer premise. The TPI 750 will be displayed at NETWORLD + INTEROP 97 in Las Vegas, May 6-8. "The functionality of the TPI 750 used to only be found in three or four separate test sets," said Armen Pogharian, product line manager, TPI. "The TPI 750 brings multiple capabilities together into a single test unit solution for those tasked with turning up and maintaining an ATM network." The TPI 750 provides thorough layer one testing capability for DS1, DS3 and optional OC3c interfaces enabling technicians to verify the physical layer in both turn-up and troubleshooting applications. The instrument contains a Terminate Mode for comprehensive provisioning and troubleshooting, a Monitor Mode for full-duplex monitoring, and extensive services testing features. Features include: Full Quality of Service (QoS) measurements including cell transfer delay time, cell delay variation, cell loss ratio, cell error ratio, and cell delay variation peak-to-peak. Selectable header data includes Virtual Path Identifier Virtual Path Identifier refers to an 8-bit (user to network packets) or 12-bit (network-network packets) field within the header of an Asynchronous Transfer Mode packet. The VPI, together with the VCI (Virtual Channel Identifier) is used to identify the next destination of a cell (VPI), Virtual Channel Identifier A Virtual Channel Identifier (VCI) is a unique identifier which indicates a particular virtual circuit on a network. It is a 16-bit field in the header of an ATM cell. The VCI, together with the VPI (Virtual Path Identifier) is used to identify the next destination of a cell as it (VCI) and cell loss priority (CLP 1. CLP - Cornell List Processor. 2. CLP - Constraint Logic Programming. ) field manipulation Auto Detection of all active VPI/VCI combinations with extensive statistics on each pair, including ATM Adaption Layer (AAL) type detection, cell throughput, peak cell rate (PCR PCR polymerase chain reaction. PCR abbr. polymerase chain reaction Polymerase chain reaction (PCR) ), and CLP cell count User Selectable Cell Stream Parameters including Peak Cell Rate (PCR), Cell Delay Variation (CDV (1) (Compressed Digital Video) The compression of full-motion video for high-speed, economical transmission. (2) (CD Video) A small videodisc (5" diameter) that provides five minutes of video with digital sound plus an additional 20 minutes ), Sustained Cell Rate (SCR (Sequence Control Register) See program counter. ), and Maximum Burst Size (MBS). The instrument supports up to eight simultaneous user defined cell streams. The unit is extremely portable and rugged and operates on battery power for up to eight hours of continuous use. The LCD screen contains 24 lines, is manipulated by durable soft keys, and provides on screen help for problem resolution. The TPI 750 base unit costs $9,995 and is available for shipment in May. TPI (Tele-Path Instruments) designs and manufactures portable services test instruments for ATM, ISDN ISDN in full Integrated Services Digital Network Digital telecommunications network that operates over standard copper telephone wires or other media. , frame relay, and DDS technologies. A focus on rugged design, portability, ease of operation, and extensive testing features has positioned TPI as a leader in portable test equipment manufacturing and design. TPI, a division of TTC, is located in Salem. TPI can be reached by phone at 540/375-0500 and its products can be viewed on the Internet at http://www.ttc.com . TTC is a Dynatech Company (NYSE:DYT). CONTACT: TTC Rob Clark, 301/353-1560, x2184, clarkr@ttc.com |
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