RS232 Isolator – Port Powered
The ATC-131 optically isolates and protects the transmit and receive lines of your RS-232 port from ground loops and power surges up to 2500V RMS for one minute. The data stream is converted from an electrical pulse to an optical signal and then back to an electrical pulse. Since there is no electrical connection between the DTE and DCE sides, the ATC-131, unlike a surge suppressor, will not transmit large continuous power fluctuations to your equipment.
This isolator protects both transmit and receive lines at baud rates up to 57.6K without requiring any external power supply. Power is obtained through the transmit and handshake lines. The special circuitry ensures that the ATC-131 receives power regardless of the handshake line states. Note that handshake signals do not pass through the isolator. At least one handshake line must be connected on each side of the isolator.
Applications
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Banking, railway, electrical, postal, insurance, finance, and administrative organizations
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Various multi-user systems including UNIX
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Protects multi-user terminals and mainframes
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Protects satellite receivers
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Protects program-controlled exchangers, charging terminals, and attendants
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Protects multi-user cards
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Protects ungrounded RS-232 devices
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Protects modems and routers
