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    fiberplex

    Extend and isolate synchronous communication (EIA-530/RS-422) at up to 6.144 Mbps over Fiber. Serial to Fiber Converters are housed in rugged military-style metal enclosures.

    FOI-4451

    Used in pairs, the FOI-4451 (to DCE) and FOI-4541 (to DTE) Serial to Fiber Converters provide end-to-end conversion, extension, and electrical isolation of EIA-530/RS-422 circuits. Multimode optics extends the distance to 2km, while singlemode optics extends the distance to 20km. The FOI-4451 and FOI-4541 both provide complete electrical isolation for RS- 422 communications. The units can be used in areas of high electrical noise or in and out of RF shielded enclosures. The fiber optic cable is not susceptible to interference caused by impulse noise, crosstalk, or EMI. Privacy of communications is also enhanced because the fiber optic cable does not radiate any emissions. Patton recommends “T” units for high security applications because they have been TEMPEST tested and approved.

    The Serial to Fiber Converters are transparent to all handshaking protocols, and can accept data and clock signals up to 6.144 Mbps. A regeneration switch on the FOI-4451 enables users to toggle between synchronous applications that require send timing (ST), and asynchronous or synchronous applications that require terminal timing (TT). They support tail circuit and null modem functions for DCE to DCE or DTE to DTE communications. An alternate interface (V.35 or RS-232) may be installed at the opposite end creating isolated interface converter.

    Features

    • Extends and Isolated EIA-530/RS-422 (MIL-STD-188-114A and FED STD 1030A) Serial Data Over Fiber

    • Multimode extension of up to 1.2 miles (2 km), singlemode extension up to 12.4 miles (20 km)

    • Singlemode extension up to 12.4 miles (20 km)

    • Separate unit for DCE and DTE: FOI-4451 (to DCE) and FOI-4541 (to DTE)

    • Supports Data Rate from DC to 6.144 Mbps

    • Tail circuit and null modem functions for DCE to DCE or DTE to DTE

    • Pairs with other FOI with V.35 or RS-232 interfaces for interface conversion

    Applications

    A typical link consists of an FOI-4451 at the Data Communication Equipment (to DCE) and an FOI-4541 at the Data Terminal Equipment (to DTE) with a duplex fiber optic cable between them.

    FOI-4451_app