Contact: Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139

LXI Consortium to be Joined by Keithley Instruments

PALO ALTO, Calif. - October 12, 2004 - The LXI Consortium today announced that Keithley Instruments Inc. (NYSE: KEI) will join the recently formed standards organization. LXI (LAN extensions for instrumentation) is a next-generation, LAN-based modular platform standard for automated test systems. As a leader in solutions for emerging measurement needs, Keithley expands the base of test and measurement companies supporting the development of the LXI standard.

LXI combines built-in measurement science and PC-standard I/O connectivity from rack-and-stack instruments with the modularity and size reduction of cardcage-based systems. With LXI, engineers are able to leverage the software and measurement accuracy they currently have from their GPIB instruments to the test system. The LXI standard provides a basis for long life-cycle instrumentation implementations that are not limited by bandwidth, software, or computer-dependent architectures.

"LXI's LAN-based architecture provides the basis for efficient, modular instruments," said Mark Hoersten, vice president of Keithley's business management. "While there are other I/O bus standards, LAN-based systems offer exciting possibilities for test systems. We are excited to join the consortium and contribute to what we believe will be an industry-standard measurement platform."

About Keithley Instruments. With more than 50 years of measurement expertise, Keithley Instruments is a world leader in advanced electrical test instruments and systems from DC to RF (radio frequency) geared to the specialized needs of electronics manufacturers for high-performance production testing, process monitoring, product development and research. By building on its strength in electrical measurement solutions for research, Keithley has become a production test technology leader for the semiconductor, wireless, optoelectronics and other precision electronics segments of the worldwide electronics industry. Keithley provides a combination of precision measurement technology and a rich understanding of their applications to improve the quality, throughput and yield of their customers' products. More information about Keithley is available at

About the LXI Consortium. LXI is the next-generation, LAN-based modular architecture standard for automated test systems managed by the LXI Consortium, a not-for-profit corporation made up of leading test and measurement companies. The group's goals are to develop, support, and promote the LXI standard. LXI's compact, flexible package, high-speed I/O, and prolific use of LAN meet the needs of aerospace defense engineers developing radar, electronic warfare, satellite, and military communications systems.

A backgrounder on LXI is available at Additional information about the LXI Consortium's product offerings, licensing, specifications, and membership is available at

Products and company names listed are trademarks or trade names of their respective companies.

# # #