Switchcraft is a leading supplier of a broad line of components for the audio, video, telecommunication, computer, medical, military, appliance, transportation and instrumentation industries. With a basic line of over 5,000 standard products and thousands of variations, Switchcraft markets products both domestically and internationally.
Dupline® transmitter for external supply. Detects the states of 8 volt free contacts and signals from devices with open collector NPN transistor output
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