Keithley 7020D Digital I/O Interface Card
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The Keithley 7020D is a Digital I/O Interface Cards. The 7020D features 40 independent digital inputs and 40 independent outputs to provide high-density, cost-effective digital monitoring and control. Versatile design and configuration of the Keithley 7020D I/O options provide compatibility with a wide range of signals and loads. Internal pull-up resistors on the inputs provide level shifting so microswitches can be monitored directly. Each input: is protected against overvoltage, so logic levels up to 42V peak can be monitored. Digital outputs can drive relatively high-current devices, including solenoids, relays, and small motors, without the need for additional control circuitry.