TTC Announces CDPD Protocol Decodes Capability for FIREBERD 500 Internetwork Analyzer.

GERMANTOWN, Md.--(BUSINESS WIRE)--May 17, 1996--TTC (Telecommunications Techniques Corp.) announces a new Cellular Digital Packet Data (CDPD) capability for its FIREBERD, 500 Internetwork Analyzer.

CDPD is a standard that defines the process by which digital, packetized data is transmitted over a cellular network.

As well as facilitating the reliable transfer of customer data, the CDPD protocol is responsible for the transfer of critical billing, registration, authentication and management information between a Mobile Data Base Station (MDBS) and a Mobile Data Intermediate System (MDIS).

The FIREBERD 500 Internetwork Analyzer with CDPD Protocol Decodes allows the user to troubleshoot the network infrastructure by tracking protocol incompatibilities between MDBS and MDIS and to filter on individual transactions between the mobile user and the CDPD system at the SNDCP and MDLP layers of the CDPD protocol stack.

The user can, therefore, verify correct registration and service parameter negotiation between the network and the mobile user.

In addition to its application for CDPD network decodes, the FIREBERD 500 has been successfully used in early CDPD network deployments to verify circuit integrity and isolate physical layer problems with T1 and data circuits during the commissioning of the network infrastructure.

With its powerful PC architecture and Windows-based user interface, the FIREBERD 500 can help reduce network downtime and improve overall CDPD service quality.

The FIREBERD 500 Internetwork Analyzer with the CDPD Protocol Decodes provides the following protocol analysis capabilities: -0-

    -- Decodes MDLP and SNDCP layers of the CDPD protocol stack
    -- Support for TP4 (X.224) over CLNP and TCP over IP transport
       mechanisms
    -- Display filtering on SNDCP and MDLP header fields
    -- Supports a Frame Relay WAN transport protocol
    -- Supports T1 and Data circuit monitoring and BER testing-0-

The new CDPD Protocol Decodes capability ranges in price from $1,995 to $2,295, depending on configuration, and is available for shipment in May.

The TTC FIREBERD 500 Internetwork Analyzer, winner of the Data Communications 1994 Hot Product Award, is a portable Windows-based, modular test instrument. Some of its analysis capabilities include simultaneous LAN/WAN, encapsulated LAN, T1/2M BERT analysis, frame relay and now CDPD protocol decodes.

TTC, a Dynatech Company (DYTC), designs, manufactures and markets communications test products and systems. Known for its line of T- BERD and FIREBERD, analyzers, TTC develops internetwork analyzers, multi-function communications analyzers, T-Carrier test instruments, E-Carrier test instruments, SONET analyzers, network test systems, and fiber optic test equipment.

In addition, TTC offers extensive training courses on products and related technologies, as well as on-site technical support. The company is headquartered in Germantown and has offices and distributors around the world. TTC can also be reached through the Internet at http://www.ttc.com.

CONTACT: TTC, Germantown

Rob Clark, 301/353-1560, x2184, [e-mail]