Features built-in cellular, LAN and WLAN interfaces as well as GPS vehicle tracking

ANAHEIM, CA - August, 2003 Interstate Electronics Corporation (IEC), a wholly owned subsidiary of L-3 Communications Corporation (NYSE:LLL), announced the availability of a new Wireless Mobile Computing System (WMCS) for network-centric, predictive telemaintenance. A multifunctional integrated computer and display with multimode wireless communications for telemaintenance and remote control applications, it is designed to support today’s military Army Diagnostic Improvement Program as well as current and future Objective Force Condition-Based Maintenance (CBM) initiatives. Developed for operation in harsh environments, it is a fully ruggedized package utilizing COTS subassemblies to provide an affordable, lightweight COTS solution.

A complete telematic system, the WMCS supports vehicle-to-vehicle and vehicle-to-central maintenance communications as well as GPS vehicle tracking. Two-way wireless communications supports customer instructions/commands to the computer and/or operator. A complete suite of interface options allows connection to on-board vehicle sensors and control devices.

The WMCS with application and diagnostic management software provides a complete predictive telemaintenance system for many military applications including: tanks, mobile generators, mobile missile launchers, personnel carriers, multipurpose support vehicles as well as on-highway trucks and critical non-combat vehicles.

Recent IEC contracts include providing the computer/display system that will host the current automated maintenance system for the Army’s Stryker vehicle. Also, IEC has been selected by General Motors Electro-Motive Division (GM EMD), to develop a predictive telemaintenance system for use on-board locomotives in the rail industry. This later system has many of the features that the Army Diagnostic Improvement Program (ADIP) and the Tank and Automotive Command (TACOM) have identified as necessary for a Condition-Based Maintenance (CBM) approach and provides predictive telemaintenance. Those features include: embedded sensors, embedded host computer, operating system (OS) and application software, wireless communication, security, privacy and authentication, standard vehicle interface, transmission network, server, diagnostic tools and maintenance service.

The mobile, Intel-compatible, 300 MHz computer system is housed in a lightweight (18 lbs) compact (12.2” x 9.3” x 5.0”) ruggedized enclosure featuring a color transflective display for sunlight readability with VGA (640 ? 480) resolution. Connectivity includes plug-in options for multiple cellular modem support for wide terrestrial coverage including AMPS, CDPD, CDMA, 1XRTT, GSM & GPRS. Bulk data transfer is supported by IEEE 802.11 wireless LAN capability. PC/104 expansion slots allow options such as CAN and/or SAE J1708/J1587 protocols for vehicle status. A total of four RS422 Opto-isolated serial ports support interface to legacy equipment, with an additional four RS232 External Serial Ports - two Opto-isolated and two full handshake serial ports. On-board memory includes up to 1 GB fault-tolerant flash memory. The unit resists shock and vibration, can operate at temperatures from –40° C to + 60° C, and meets FCC Class B EMI/EMC requirements.

About Predictive Telemaintenance Systems:
Predictive Telemaintenance systems are those that monitor vehicles and equipment while in the field or away from a maintenance facility and communicate the status to a monitoring center using wireless communication: satellite, radio, cellular or IP with VPN security. In military applications, the equipment or vehicle would be equipped with a remote monitoring computer that gathers and analyzes the data and information from on-board sensors and monitors. The WMCS is wirelessly connected via radio to the public Internet in the case of unclassified data or via secure radio and Internet using the Secret Internet Protocol Router Network (SIPRNET). The data/information is transmitted to a centralized database, such as the Global Combat Support System, Army (GCSS-A), which has a maintenance database that includes telemaintenance functionality. Failure predictions would be enunciated to the monitoring personnel in order that appropriate action could be taken immediately.

About Interstate Electronics Corporation and L-3 Communications:

Based in Anaheim, CA, Interstate Electronics Corporation, a wholly owned subsidiary of L-3 Communications Corporation, (NYSE:LLL) has been a long-term supplier of critical test instrumentation and missile tracking systems for the U.S. Navy's Fleet Ballistic Missile (FBM) weapons systems, including the Trident submarine. IEC produces ruggedized intelligent displays for both military and industrial applications and is also ranked as an industry leader in GPS receiver and translator-based products currently in use on multiple aircraft, missiles and precision-guided weapons. To learn more about IEC, please visit www.iechome.com

Headquartered in New York City, L-3 Communications is a leading merchant supplier of secure communications systems and products, avionics and ocean products, training products, microwave components and telemetry, instrumentation, space and wireless products. Its customers include the Department of Defense, selected U.S. government intelligence agencies, aerospace prime contractors and commercial telecommunications and wireless customers. To learn more about L-3 Communications, please visit the company's web site at www.L-3Com.com .

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995: Except for historical information contained herein, the matters set forth in this news release are forward-looking statements. The forward-looking statements set forth above involve a number of risks and uncertainties that could cause actual results to differ materially from any such statement, including the risks and uncertainties discussed in the company’s Safe Harbor Compliance. Statement for Forward-looking Statements included in the company’s recent filings, including Forms 10-K and 10-Q, with the Securities and Exchange Commission.

For more information, contact:
Greg Martz
Marketing Manager
Interstate Electronics Corporation
Phone: (714) 758-4158
Fax: (714) 758-4148
URL: www.iechome.com