Open-architecture computer products, namely equipment and components, namely electronic circuit board assemblies, equipment enclosures for housing and interconnecting electronic circuit board assemblies; Local Area Networking (LAN) interfaces and equipment, namely switches and gateways; Wide Area Network (WAN) interface devices, namely network interface cards (NIC), switches and gateways; avionics equipment, namely computer interface cards, testing apparatus, namely connectors, cables, and computers for protocol processing, for testing transmission protocols used in control and data transfer buses and measurement systems devices for recording accurate measurements of signals and message packets sent or received over avionics and telemetry data transmission cards; telemetry equipment, namely data transmission cards and data multiplexer cards for multiplexing and/or transmitting data; computer data bus expansion for providing additional card slots to computer systems and data bus adaption equipment, namely slot expansion chassis and bus interface bridges; data storage interface components, namely storage area networking interfaces comprised of communications interface cards for connecting storage devices, namely disk drives, and disk arrays and disk controller interfaces; interface devices for telecommunications equipment, comprised of line interface cards, network processors, and blades for network monitoring; software drivers and applications for display and analysis of data, all for commercial, industrial, medical, data communications, telecommunications, military and government applications