Abstract: Methods, systems, and computer program products for modeling a secure production network are provided. A method includes generating a test network for emulating production operations, capturing and analyzing data traffic occurring over the secure production network and a non-secure production network, and determining data flow requirements for isolating the secure production network and the non-secure production network from the test network. The data flow requirements are determined from results of data traffic capture and analysis. The method also includes generating business log from the data flow requirements and applying the business logic to a firewall associated with the test network. The business logic permits transmission of a subset of secure production data to the test network and prevents receipt of incoming transmission at the secure production network.

Abstract: Methods, systems, and computer program products for modeling a secure production network are provided. A method includes generating a test network for emulating production operations, capturing and analyzing data traffic occurring over the secure production network and a non-secure production network, and determining data flow requirements for isolating the secure production network and the non-secure production network from the test network. The data flow requirements are determined from results of data traffic capture and analysis. The method also includes generating business log from the data flow requirements and applying the business logic to a firewall associated with the test network. The business logic permits transmission of a subset of secure production data to the test network and prevents receipt of incoming transmission at the secure production network.

Abstract: A circuit detecting the drop of a supply voltage applied between a high voltage supply terminal and a low voltage supply terminal for an integrated circuit. A trheshold circuit includes an input terminal connected to the high voltage supply terminal, an output terminal supplying a desired signal and threshold supply terminals. A MOS capacitor is connected between the low voltage supply terminal and an N-channel MOS transistor. The drain and gate of the transistor are connected together and to the high voltage supply terminal. The threshold supply terminals are connected across the capacitor.