RadiSys Announces First ATCA Single Board Computerfor the 4G Market

Seventh-generation board doubles performance with cutting-edge Intel Xeon
processor technology
HILLSBORO, Ore.--(Business Wire)--
RadiSys Corporation (NASDAQ: RSYS), a leading global provider of advanced
embedded solutions, today announced the release of its Promentum ATCA-4500, a
new AdvancedTCA (ATCA) single board computer (SBC) utilizing the new Intel Xeon
processor 5500 series. The ATCA-4500 combines high performance with large memory
capacity and expansion flexibility to address advanced control, gateway and
telecom server functions for a broad set of 4G applications including LTE
(Long-Term Evolution), WiMAX, NMS (Network Management Systems), and IMS (IP
Multimedia Subsystem). The ATCA-4500 represents seventh-generation RadiSys ATCA
blade technology delivering on the promise of Moore`s law - doubling the number
of transaction or subscriber units that Telecom Service Providers can handle per
ATCA slot - thereby, dramatically reducing cost per unit.

"We bring true innovation and system level thinking to every product we design
and the Promentum ATCA-4500 encapsulates the best in single board computers,"
said Anthony Ambrose, RadiSys Vice President and General Manager, Communications
Networks. "As the market leader in Integrated ATCA System deployments, the
ATCA-4500 complements our other market leading products using DSP, packet
processing and switching technology in building the world`s best 10G ATCA
platform."

RadiSys` ATCA-4500 has been optimized to meet Telecom Equipment Manufacturer
(TEM) requirements for easily integrating into an existing ATCA chassis and for
supporting multiple storage options and OS virtualization. The ATCA-4500
features an innovative virtualization solution that allows TEMs to streamline
the complexities of their network element configurations and ease the porting of
legacy application software and operating systems.

The ATCA-4500 is based on breakthrough Intel processing technology enabling TEMs
to use higher performing silicon at the system level. A single Intel Xeon
processor 5500 series will outperform the previous generation of Intel Xeon
Processors 5400 series by up to 25% using standard computing benchmark.* The
ATCA-4500 is based on single socket design technology and provides TEMs with
higher performance while being packaged such that it is fully upgradeable for
next generation performance, safeguarding their investments in hardware by
avoiding costly redesigns when new processing technology from Intel hits the
market.

"Intel`s highest performing processor, the Intel Xeon processor 5500 series, is
designed to meet the performance and virtualization requirements for the most
demanding storage, security and communications infrastructure applications,"
said Doug Davis, vice president and general manager, Embedded and Communication
Group of Intel. "This enables the RadiSys Promentum ATCA-4500 to support both
legacy and next generation applications on the same virtualized communications
element without sacrificing performance."

"TEMs must increasingly look to COTS and ATCA to provide the processing capacity
to keep up with increasing network and application complexity," said Lee Doyle,
Vice President and General Manager, Network Infrastructure, IDC. "The ATCA-4500
is a cost effective solution to allow TEMs to increase the subscriber density
per system."

RadiSys Promentum ATCA-4500

The ATCA-4500, with the new Intel Xeon processor L5518, has been designed to
offer the highest performance while minimizing the total cost of ownership. It
offers more than a 50% increase in performance per watt per dollar over a dual
socket Intel Xeon processor L5408 based ATCA blade. The processor and feature
set were selected so it could pass the NEBS thermal requirements in chassis
already deployed in the field, eliminating the need for a fork lift upgrade.
Support for a massive 8 DIMM array of VLP DDR3 scales up to 64G of memory while
providing cost effective options for applications with lower density memory
requirements. The board offers multiple storage options, including RAID,
SAS/SATA, solid state USB flash drives and supports iSCSI boot, allowing TEMs to
achieve their storage requirements around performance, flexibility, reliability
and cost. For low-level software, the ATCA-4500 is based on Extensible Firmware
Interface (EFI), which is a significant improvement over the old legacy BIOS
firmware. The EFI provides a pre-operating system shell where customers can
build and execute EFI applications, such as setup, OS install, diagnostic or
configuration utilities. Support for extended Intel Virtualization Technology
(VT-x and VT-d) on the board decreases the overhead associated with
virtualization, making it the ideal platform for use cases that require
virtualization. The ATCA-4500 has been tested against the guidelines offered by
CP-TA to ensure interoperability across the ATCA ecosystem.

The ATCA-4500 will be available as a building block or fully validated and
integrated into the RadiSys family of platforms which include 2, 5, 14 and 16
slot systems. The board has been validated with third-party hardware including
products from SANBlaze, Interphase and Astute Networks.

Key Features

* Based on the Intel Xeon Processor L5518 with integrated memory control
* Uses the LGA 1366 socket, allows support for other processors in Intel Xeon
Processor 5500 family
* Supports up to 64GB DDR ECC registered SDRAM via 8 VLP sockets
* Supports mid-height Advanced Mezzanine Card (AMC), supporting Ethernet, PCI
Express, SAS, already validated with various I/O and storage AMCs
* Optional dual user flash up to 16Gb each
* Supports Hardware RAID 0/1
* Dual 10Gb/1Gb Ethernet Fabric Interface

RadiSys ATCA Ecosystem

In addition to the ATCA-4500`s rich feature set, RadiSys has equipped its
industry leading REDI lab with the ATCA-4500, which has enabled its ecosystem
partners to begin early OS, middleware and application integration prior to
market availability. This complete application ready development approach has
been able to speed RadiSys` partners` development activities and reduce costs
through innovative remote development capabilities found in the REDI lab.

The ATCA-4500 supports Wind River`s Carrier Grade Linux platform. The board will
also support Red Hat Enterprise Linux 5.0 and MontaVista CGE 4.0 and 5.0 to
cover RadiSys` entire customer base. Certification is also planned with VMware
ESX 3.5.

Availability

The Promentum ATCA-4500 is shipping now in limited quantities with production
shipment in Q3. It is available for demonstration in the REDI lab.

About RadiSys Corporation

RadiSys (NASDAQ: RSYS) is a leading provider of advanced solutions for the
communications networking and commercial systems markets. Through intimate
customer collaboration and combining innovative technologies and industry
leading architecture, RadiSys helps OEMs, systems integrators, and solution
providers bring better products to market faster and more economically. RadiSys
products include embedded boards, application enabling platforms, the OS-9
operating system, and turn-key systems, which are used in today's complex
computing, processing, and network-intensive applications. RadiSys is a Premier
Member with the Intel Embedded and Communications Alliance, a community of
embedded and communications developers and solution providers. For more
information, visit http://www.radisys.com, write to info@radisys.com, or call
800-950-0044 or 503-615-1100. Editors seeking more information may contact Lyn
Pangares at RadiSys Corporation at 503-615-1220 or lyn.pangares@radisys.com.

RadiSys and Promentum are registered trademarks of RadiSys Corporation.
Intel and Intel Xeon are trademarks of Intel Corporation in the U.S. and other countries.
*All other trademarks are property of their respective owners.

* Based on published results on Spec.org, using processors with the same clock speed
http://www.spec.org/cpu2006/results/res2009q1/cpu2006-20090108-06391.html
http://www.spec.org/cpu2006/results/res2008q1/cpu2006-20071226-02920.html

ATCA-4500 QUOTE SHEET

"RadiSys` commitment to the carrier ecosystem has resulted in a robust and
innovative platform that customers can employ to get to market quickly. By
leveraging MontaVista`s CGL compliant Carrier Grade Edition 4.0 or 5.0 Linux
operating system on the ATCA-4500, it enables TEMs to quickly develop and deploy
new applications on a robust high quality platform."

Dan Cauchy, Sr. Director of Market Development, MontaVista Software

"As the adoption of ATCA continues to expand, the TEMs are demanding more
storage options. RadiSys has been working closely with SANBlaze to ensure
operability of the products. The leading edge performance of the RadiSys
ATCA-4500, combined with SANBlaze storage products, provides TEMs with multiple
solutions to meet their storage demands."

Steve Looby, Director of Product Management, SANBlaze

"Wind River brings a strong Carrier Grade software platform, development tools,
and ecosystem together with RadiSys` ATCA hardware platforms to create an
integrated systems solution on which our respective customers can build to
achieve superior time-to-market advantages. As an example, when RadiSys set out
to deploy its ATCA-4500 single board computer, they worked to deliver a system
with the latest multicore processing technology pre-integrated with Wind River
Linux, thereby ensuring our customers receive the most comprehensive solution
available."

Mike Langlois, General Manager, Networking and Telecom Industry, Wind River

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RadiSys Corporation
Lyn Pangares, 503-615-1220
lyn.pangares@radisys.com

Copyright Business Wire 2009