Current Loop Convertors

Current Loop Convertors

Integrating serial data with 20mA current loop.

The Westermo range of industrial current loop converters provides a solution for point to point applications where RS-232 data needs transmitting over 20mA current loop. Our current loop converters can be set to either active or passive on both the transmitter and receiver and allow transmission up to 6km. Designed for use in harsh environments, the Westermo RS-232 to 20mA current loop converters ensure communications over long distances and in environments with high levels of interference.

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    20 mA Current loop converter

    MD-21 AC

    20 mA Current loop converter

    MD-21 AC

    20 mA Current loop converter
    1 x 20 mA current loop up to 19.2 kbit/s
    2 x RS-232 up to 19.2 kbit/s

    The MD-21 is a 20 mA current loop (TTY) converter allowing RS-232 systems to be connected to a 20 mA current loop interface over a distance up to 6 km (3.7 mi). The serial interface is a standard RS-232 interface with five control signals. Since the communication is totally transparent there is no need for different settings except for if the current loop shall be active or passive.

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    20 mA Current loop converter

    MD-21 DC

    MD-21-DC 20 mA Current loop converter
    MD-21-DC 20 mA Current loop converter

    20 mA Current loop converter

    MD-21 DC

    The MD-21 is a 20 mA current loop (TTY) converter allowing RS-232 systems to be connected to a 20 mA current loop interface over a distance up to 6 km (3.7 mi).

    The serial interface is a standard RS-232 interface with five control signals. Since the communication is totally transparent there is no need for different settings except for if the current loop shall be active or passive.