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BlackBox, CL412A-F, RS-232 to Current-Loop Interface-Powered Bidirectional Converter, Female
Use in industrial applications where electrical interference could be a problem.
Features:
The RS-232 to Current Loop Interface-Powered Bidirectional Converter connects to either a modem or mux. Just flip the switch to attach a terminal or computer. Your RS-232 devices are protected from dangerous transients, too. Opto-isolators in both the Transmit and Receive loops keep out electrical interference.
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Note: Please read description carefully. Do not base your order on the picture presented.