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Analog I/O devices process analog signals (e.g., output of transducers) and output the results in analog format.
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Backplanes are circuit boards that contain sockets or expansion slots for connections to other circuit boards. There two types of backplanes: active and passive.
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Data acquisition is the digitizing and processing of multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes. Signal conditioning includes the amplification, filtering, converting, and other processes required to make sensor output suitable for rereading by computer boards.
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Data acquisition I/O modules or cards have both input and output functionality. Digital or discrete I/O modules include on-off signals used in communication, user interface, or control.
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Data acquisition input modules accept sensor and other signal output for data acquisition systems. They may include signal conditioning prior to the analog-to-digital conversion stage.
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Data acquisition output modules or cards transfer amplified, conditioned, or digitized signals.
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DC power supplies accept an input power and output the desired form of DC power. Common types of DC power supplies include linear power supplies, switching power supplies, DC-DC converters, and silicon controlled rectifier (SCR) type power supplies.
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Digital I/O devices process digital signals (e.g., outputs from a controller) and output the results in digital format.
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Flash memory cards provide electrically erasable, programmable, read-only memory (EEPROM) that can be erased and reprogrammed in blocks instead of one byte at a time.
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Memory modules are computer chips used to add memory to a computer.
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Network cards and network controllers are expansion boards inserted into computers that allow them to connect to a network.
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Power supplies are devices that produce AC or DC power. This grouping includes current sources, DC power supplies, AC-DC adapters, DC-DC converters, AC power sources, and DC-AC inverters.
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Serial interfaces and serial converters are used to connect or convert an analog signal to a serial-digital output signal, and to connect or convert from one network standard to another.
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Specialty industrial process controllers are used in unlisted, specialized or proprietary applications.
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Universal process controllers constitute a broad area of control devices that may be employed in the monitoring and control of many different process variables, including temperature, pressure, flow and other values.
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