Network analyzers and protocol analyzers are test equipment used to troubleshoot and analyze network problems

Protocol stack software is a set of hierarchical network protocols that manage the flow of data in communication systems.

Remote terminal units (RTUs) connect directly to sensors, meters, dataloggers or process plants, and collect and transmit data automatically.

Network test equipment is used to test, probe, and analyze telecommunication, network and telephone systems.

Network processors handle a wide array of tasks needed to support network systems, including routing, compression, encryption, authentication, and protocol conversion

Advanced Telecommunications Computing Architecture (AdvancedTCA or ATCA) products use advanced telecom computing architecture (AdvancedTCA), an open standard for high-speed, high-performance telecommunications systems.

VoIP and IP telephony allows PC users to make phone calls over the Internet or other packet networks via gateways and standard telephones.