IFR converters

Description: IFR devices convert the levels of the RS232 standard to the corresponding levels of the RS485 standard. IFR converters allow the connection of a PC equipped with RS232 to an RS485 bus. The activation of the RS485 drivers can be done with RTS, RTS denied or automatically if this option has been selected with internal jumpers. In the automatic option, data from the RS232 line activates the drivers. When the data transfer is finished, the IFR converters return to receive mode.

Description: IFR devices convert the levels of the RS232 standard to the corresponding levels of the RS485 standard. IFR converters allow the connection of a PC equipped with RS232 to an RS485 bus.

The activation of the RS485 drivers can be done with RTS, RTS denied or automatically if this option has been selected with internal jumpers.

In the automatic option, the data on the RS232 line activates the drivers. When the data transfer is completed, the IFR converters return to receive mode.


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    Technical details

    • Technical characteristics
    • Technical data

    IFR1
    2 wires
    1 RS232 serial port
    1 RS485 serial port

    IFRA3 / IFRA
    2 or 4 wires
    Optically isolated
    1 RS232 serial port
    1 RS485 serial port

    IFR4
    2 or 4 wires
    Optically isolated
    1 RS232 serial port
    4 RS485 serial ports

    ENTRANCE
    Number of entries: 1
    Input type: RS 232 (ED, TD, RTS, CTS)

    EXIT
    Number of outlets
    IFR1, IFRA, IFRA3: 1
    IFR4: 4
    RS 485 output type
    Baud rate: 300 - 76,800 bauds

    AUXILIARY VOLTAGE
    Aux. V AC: 110 or 220V
    Aux. V DC: 12, 24 or 48 V
    Own consumption
    IFR1: 3 VA
    IFRA, IFR4: 6 VA
    IFRA 3 W