Interphase Introduces Gateway-on-a-slot Communications Blades

3/20/2003 - Interphase Corporation (NASDAQ: INPH), an international supplier of next-generation networking technologies, announced the iNAVTM Communications Blade Series, a new line of embedded communications subsystem building blocks that enable "gateway-on-a-slot" functionality for the most demanding network convergence needs.

The iNAV Communications Blade Series of intelligent communications I/O solutions is composed of board-level communications building blocks for use in large multi-function, multi-slot systems, and also includes compact box-level solutions functioning as intelligent stand-alone network nodes such as wireless gateways or multiservice switches. This family of products, when configured with Interphase iSPANTM Communications Controllers, offers a vast array of network interface options, providing customers with a large menu of choices for creating customized intelligent I/O subsystems.

iNAV 4000: The flagship of the iNAV line, the iNAV 4000 Network Processor Blade, is an application-ready module with fully developed lower layer network protocol stacks and a wide variety of the protocol interworking functions needed for broadband applications. The iNAV 4000 offers simultaneous IP routing, ATM switching, and interworking capabilities for a large array of other network protocols including PPP, Packets over SONET (POS), Inverse Multiplexing for ATM (IMA), and many more. Multiprotocol interworking enables bridging of non-congruent networks, an application currently in high demand as a result of communications network convergence. By performing protocol interworking on-board, the iNAV 4000 replaces legacy interworking solutions that require an entire system of modules, resulting in a five-fold improvement in the price/performance ratio of gateway equipment. Powered by the WintegraTM WinPathTM Packet Processor yielding million-packet processing per second, the iNAV 4000 drastically reduces the equipment costs, equipment real estate, and integration time necessary for deploying network convergence applications. The iNAV 4000 saves telecom original equipment manufacturers (OEMs) the substantial development time and resources that are typically required for this kind of functionality.

iNAV 3000: The second product in the iNAV family, the iNAV 3000 Telecom Carrier Blade, provides OEMs with a foundation for narrowband applications that enable customized subsystems performing computing, digital signal processing (DSP), or I/O functions. The iNAV 3000 is equipped with dual PMC/PTMC expansion sites for maximized per-slot density, enabling telecom OEMs the flexibility to create customized subsystems to perform a wide array of applications on a single server slot. The Interphase iSPAN Communications Controllers provide a wide selection of intelligent communications I/O interfaces to complement the iNAV Communications Blades, including T1/E1/J1, Serial, T3/E3, OC-3/STM-1, Fast Ethernet, and Gigabit Ethernet. Robust on-board features of the iNAV 3000 include an eight-port Fast Ethernet Switch, a 2,048 DS-0 TDM switch, and a H.110 interface to enhance the capabilities of the PMC modules. The iNAV 3000 provides OEMs with a basis for building specialized subsystems to support virtually any telecom application.

iNAV Series Direction: New additions to the iNAV Series in the near future will include highly-specialized blades for computing-intensive communications environments and "appliance" solutions serving as compact stand-alone gateways.

"The addition of the iNAV family perfectly complements our existing iSPAN controller family and provides our customers with a complete set of building blocks for creating tailor-made subsystems," said Greg Kalush, President and CEO of Interphase Corporation. "This expanded portfolio of offerings also demonstrates our commitment to meeting our customers' vast array of communications I/O needs, from the most robust to the most economical. New additions to the iNAV product line will raise the bar for communications subsystems even further."

Pre-release versions of the iNAV 3000 and iNAV 4000 are now available, and the products will be available for quantity shipments in the near future.

About Interphase Corporation
Interphase enables rapid platform design and integration for the global voice and data communications markets through custom and off-the-shelf communications equipment, embedded software development suites, and systems integration and consulting services for telecom and enterprise networks. The company's products connect computer and telecommunication servers to Wide Area Networks (WANs), Local Area Networks (LANs) and Storage Area Networks (SANs) using Asynchronous Transfer Mode (ATM), Ethernet, Signaling System 7 (SS7), IP, Fibre Channel, HDLC, Frame Relay, and Integrated Services Digital Network (ISDN) technologies. Headquartered in Plano, Texas with offices across the United States, Paris, Munich, Helsinki, and Bangkok, Interphase 2002 revenues were $25.1 million. Clients include Lucent Technologies, Nortel Networks, Ericsson, Hewlett-Packard, Alcatel, IBM, Compaq, Motorola, Fujitsu, Lockheed Martin and Raytheon. Additional information about Interphase and its products is available through the company's web site at

The Interphase logo is a registered trademark of Interphase Corporation.

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