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XIRCOM UNVEILS FIRST CORDLESS LOCAL AREA NETWORK; WILL OPEN XIRCOM NETWAVE PROTOCOL

 NEW YORK, June 28 /PRNewswire/ -- Xircom, Inc. (NASDAQ: XIRC) today unveiled Xircom Netwave technology, the first truly cordless approach to local area networking. The Calabasas, Calif.-based company also announced the technology will be available to strategic partners to foster worldwide interoperability for this new approach to in-building, high-speed, cordless communications.
 "As computing and communication devices get smaller, the need has arisen for freedom to move about the workplace unencumbered by wires and cables, yet remain connected to network resources," said Dirk Gates, president and CEO of Xircom. "Traditional wired LANs and `wire replacement' wireless LANs are designed for stationary desktop use and don't offer the ability to roam freely. Xircom Netwave is the first technology to deliver on this promise of true mobility."
 "After an extensive development effort, we are proud to unveil Xircom Netwave, a cordless LAN technology designed to deliver mobility as a complement to current network hardware, operating systems and LAN applications. Netwave is the cordless link needed to make the next generation of computing/communications devices truly usable in a business context."
 Xircom Netwave Technologies
 Xircom Netwave comprises a radio-based physical layer and a distributed Media Access Control (MAC) layer protocol. It is analogous to Ethernet or Token Ring and implements the lower two layers of the OSI seven-layer model.
 The radio is a 2.4 GHz, spread spectrum, frequency hopper that delivers a raw data rate of one megabit per second. Xircom chose the 2.4 GHz Industrial, Scientific and Medical band because it is the only unlicensed radio frequency band available in North America, Europe and Asia. The frequency hopping scheme allows the radio to perform well in the presence of interference, increases capacity and provides cell-to- cell isolation. It is a low-power radio with a range of 40 to 50 meters indoors. Unlike infrared technology, this radio will transmit through walls in normal office environment.
 The Xircom Netwave MAC layer protocol provides an asynchronous data delivery service that is equivalent to the service provided by Ethernet and readily supports typical bursty LAN applications such as file access, client/server applications, printing and e-mail. This protocol can also be used with a variety of alternate physical layers, such as direct sequence RF and infrared.
 A major advantage of the Xircom Netwave protocol is the ability to roam freely throughout a facility or campus with continuous, seamless connection to network resources. Other key features include virtual collision detection and two-level carrier sense.
 Demonstrating the First Cordless LAN
 Available in Fall 1993, the Xircom Netwave products represent the first truly cordless solution, cutting both the network and the power cables. Xircom will offer a family of connectivity products based on the 2.4 GHz, frequency hopping, spread spectrum radio and the Xircom Netwave MAC protocol. Each product in the family will support Novell NetWare, Microsoft LAN Manager and many other popular network operating systems and applications. The Xircom Netwave product line includes:
 -- The Xircom CreditCard Netwave Adapter, a PCMCIA Release 2.0 compliant, Type II card, which features a totally integrated design that eliminates the AC power cord, external circuitry and antenna. Suggested retail price is $499.
 -- The Xircom Pocket Netwave Adapter which attaches to the computing device via the parallel port and supports EPP (Enhanced Parallel Port) data transfers for high-speed operation. A phantom power cable removes the need for external AC power, a hinged design allows for optimum radio performance. Suggested retail price is $499.
 -- The Xircom Netwave Access Point for Ethernet provides the cordless link between a Xircom Netwave LAN and a wired, IEEE 802.3 Ethernet LAN. the access point features roaming, automatic load balancing for increased capacity, power management, security and data encryption. Each access point has a range of 50 meters or a coverage area of 65,000 square feet with a recommended average of one access point for every ten users. The flexible design allows of either desktop or wall mounting and features connectors for 10Base-T, 10Base-2, and 10Base-5. Suggested retail price is $999. A Token Ring version is planned for 1994.
 "With Netwave, users can actually create complete, self-contained cordless LANs without having to connect to a wired enterprise LAN," Gates said. "With this ad hoc network, all users can communicate directly with each other in either a peer-to-peer or server/workstation manner to share information and programs. All that is required for this on-demand network is that each PC be equipped with a Xircom Netwave cordless LAN adapter."
 This configuration, called a Basic Service Area (BSA), is the primary building block for larger cordless LANs. By adding a Xircom Netwave Access Point, the BSA can be connected to wired network, making all of the wired LAN services and resources available to the cordless users within range. In larger environments, multiple access points can be used to extend the service area enterprisewide. This capability, known as roaming, is a key access point feature. Users are ensured of seamless, in-building connectivity as they move from service area to service area and remain connected to their LAN.
 Opening up the Technology
 "Over the past three years, a number of companies, including Xircom, have been contributing to the wireless LAN standards effort of the IEEE 802.11 committee," Gates said. "Although the committee has been working diligently on this standard, we are still years away from a final document. Until that time, we will cooperate and work closely with key industry participants to deliver Xircom Netwave-based product. We believe this initiative will stimulate a wider acceptance of this cordless LAN technology and will generate the growth of cordless communications worldwide."
 In unveiling the technology today, Gates announced technology licensing agreements with Advanced Micro Devices, Inc., and NCR Microelectronics Products Division. Also announced today, Xircom and Digital Equipment Corporation have entered into discussions to jointly develop mobility enhancements for wireless communications. AST Research, Dell Computer Corp., NEC Technologies, Inc., Norand Corp. Novell Corp. and Sun Microsystems Computer Corp. expressed support for Xircom Netwave technology.
 Founded in 1988, Xircom is the leader in the development and manufacture of external connectivity solutions for the personal computer market. The company pioneered the use of the universal PC parallel port to connect PCs to a LAN and has sold more than 500,000 external LAN adapters to date.
 Xircom's U.S. headquarters is located at 26025 Mureau Road, Calabasas, Calif. 91302. Telephone is 818-878-7600 or 800-874-7875. Fax is 818-878-7630. Xircom also has offices in Reston, Va.; Antwerp, Belgium; and Hong Kong.
 NOTE: Xircom is a registered trademark and Netwave, CreditCard Netwave Adapter, Pocket Netwave Adapter and Netwave Access Point for Ethernet are trademarks of Xircom, Inc.
 General Notice: Some of the product names herein have been used for identification purposes and may be trademarks of their respective companies.
 -0- 6/28/93
 /CONTACT: Joanne Martz, director of investor relations of Xircom, 818-878-6220, or Deb Cromer or Lynne Rocha of White & Cromer, 415-354-8800, for Xircom/
 (XIRC)


CO: Xircom, Inc. ST: New York, California IN: CPR SU: PDT

LG-TS -- NY011 -- 6224 06/28/93 12:04 EDT
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