Data-transmission modems

    Jan. 1, 1996

    Data-transmission modems

    RS-232 optical modems for data transmission consist of single- or four-channel models that use SMA or ST optical connectors. Duplex optical ports are available for the four-channel models. The modems consist of a pair of units with a DS-25 connector and are powered by an external plug-in power supply or by the data terminal itself. The 2.13ٲ.63ٴ.20-inch units weigh 1.6 ounces. They suit applications where fiber-optic cable is already in place or where long distances exist between data points.

    Purdy Electronics Corp.

    Sunnyvale, CA

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