20130212310 | INTERFACE FOR MODULAR INPUT/OUTPUT AND DATA ACQUISITION SYSTEMS - A modular I/O and data acquisition system includes a plurality of connection ports for receiving mating connectors of an interconnecting I/O module, the mating connectors configured to mate with a plurality of contacts in an associated connection port. The plurality of ports is mounted in an equipment rack. The equipment rack includes wiring interconnections, power buses and data buses for communication with automation devices. Connection ports include an interface circuit. The interface circuit includes a power source, a pair of USB data signal lines transmitting a USB data signal, and an optional video channel independent from the USB data signal. | 08-15-2013 |