SDL Communications' Fully Hot Swap Compliant Intelligent 6U DS3/HSSI CompactPCI WAN Adapter Integrated into Motorola Computer Group's CPX8216 CompactPCI Platform

SDL Communications, the global leader in high-performance wide area networking (WAN) adapters, today announced that its ARIES 725, the next generation intelligent high-speed serial interface (HSSI) CompactPCI&61650; adapter with full hot swap compliance, has been successfully integrated into Motorola Computer Group's (MCG) CPX8216 platform. "The successful integration of SDL's ARIES 725 adapter into MCG's CPX8216 CompactPCI platform enables our joint customers to benefit from key features that meet unique OEM product and market needs," said John Hughes, vice president and director, Telecommunications Business Unit, MCG. "Leveraging SDL's proven WAN interface technology and our expertise in embedded OEM computing platforms provides customers with a leading open-computing platform for next generation telecommunications projects." Enhanced Architecture and Higher Performance SDL's ARIES 720/750 Line consists of intelligent single or dual port DS3/HSSI WAN adapters for the CompactPCI bus featuring industry leading architecture, higher performance, full hot swap compliance per PICMG 2.1 R1.0 standards, support for two modular physical interfaces and receive/transmit packet time stamping option. The ARIES 720/750 is a 6-U CPCI adapter that features a low latency 32-bit PCI interface supporting burst rates of 132 MBps. Designed to off-load Host CPU processors in telecommunications access and bandwidth intensive multimedia applications, the ARIES 720/750 adapters support both rear and front panel HSSI, DS3 and E3 interfaces. The following products are included in the ARIES 720/750 Line: ARIES 720: Single port HSSI CompactPCI adapter with full hot swap compliance ARIES 725: Dual port HSSI CompactPCI adapter with full hot swap compliance ARIES 750: Single port DS3/E3 CompactPCI adapter with full hot swap compliance ARIES 755: Dual port DS3/E3 CompactPCI adapter with full hot swap compliance "SDL's introduction of the ARIES 720/750 Line reinforces our commitment to advanced product innovation and enables our OEM customers, like Motorola Computer Group, to integrate next generation WAN technology into their networking platforms and devices," states Dale Dhillon, senior vice president of SDL Communications. "SDL has designed the ARIES 720/750 adapters to effectively respond to the networking and telecommunications industry's rapidly growing need for high-performance interface products with NEBS compliance and high availability through support for hot swap." Designed for CompactPCI bus "plug and play," the ARIES 720/750 also provides software support for Windows NT® and popular versions of UNIX®. In addition, WAN protocol stacks for Frame Relay and PPP are offered with this new line of products. As with all SDL products, the ARIES 720/750 Line is available with a comprehensive Driver Development Kit (DDK) that contains a comprehensive Application Programming Interface (API), sample code, diagnostics and support documentation. The DDK complements SDL's CP/2 TM product design architecture and is designed to reduce required OEM integration time and speed product introduction. CP/2 Architecture: Industry Leading Approach to Hardware and Software Design Targeted for use as an intelligent T3 or FT3 interface for system level platforms, the ARIES 720/750 Line is a product of SDL's CP/2 Architecture, a modular approach to hardware and software design that utilizes common components, interfaces, hardware platforms and software drivers to develop WAN adapters. Key benefits of this design approach include: (1) Reduced time to market for new adapters incorporating emerging technologies, (2) Maximum reliability and cost-efficiency, (3) Minimal integration and configuration time, (4) Use of industry standard I/O modules that provide a wide range of interface options, and (5) Ability to leverage a variety of applications and protocol stacks. About Motorola Computer Group Motorola Computer Group (MCG), headquartered in Tempe, Arizona, is the world's leading supplier of embedded computing platforms to OEMs for use in telecommunications, imaging and industrial automation applications worldwide. MCG provides best-in-class solutions by combining its advanced design engineering capability with responsive, world-class manufacturing operations. Additional information about MCG is available on the World Wide Web at MCG is part of Motorola's Integrated Electronics Systems Sector (IESS), a division of Motorola, Inc. (NYSE: MOT). IESS is a leading provider of electronic systems for customers who integrate them into their products. The five businesses of IESS deliver high value embedded electronic solutions that enable customers to differentiate their products and lead their markets. Motorola is a global leader in providing integrated communications solutions and embedded electronic solutions. Sales in 1998 were $29.4 billion. About SDL Communications SDL Communications, Inc. is the global leader in the design and manufacture of advanced wide area network adapters and communication software protocols for use in networking platforms and devices. Recognized as the leading provider of WAN interfaces, SDL offers a complete line of networking products designed for use by leading technology companies, system integrators, and Internet Service Providers (ISPs) in system level products. SDL's WAN adapters are typically implemented in high-performance multiprotocol routers, WAN servers (e.g. Internet Access Platforms and Server Based Remote Access Devices), WAN test equipment, FRADs, wireless CPE, satellite applications and Integrated Access Devices (IADs). Established in 1987, SDL Communications has grown into the premier developer of WAN adapters for PCI, CompactPCI and PMC systems. Most recently, SDL has been focused on developing products for emerging technologies such as PPP, Frame Relay and Asynchronous Transfer Mode (ATM). SDL's customer base includes technology leaders such as Nortel Networks, IBM, Motorola, Nokia, ITT, Compuware, GE and Network Associates. More information on SDL Communications and its products is available at Motorola and the Motorola logo are registered trademarks of Motorola, Inc. Other brand or product names are registered trademarks or trademarks of their respective holders. Motorola Computer Group identifies a product and/or division of the respective Motorola legal identities worldwide.

Terri Thorson
Motorola Computer Group
Phone: (602) 438-3287