Special Serial Modems

Special Serial Modems

Industrial Point-to-point and v.23 multidrop modems.

Whenever you are looking to setup or refurbish an application using serial communication over long distances an industrial data modem may come in handy. Westermo’s robust and proven technology are available for fibre, multidrop and point-to-point applications. Our wide range of industrial modems is designed for use in such demanding applications such as railways, water treatment, substation automation, roads and tunnels. All Westermo modems exceed industrial standards and ensure robust and reliable communications.

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    Line sharing modem

    LD-01BP DC

    LD-01BP-DC Line sharing modem
    LD-01BP-DC Line sharing modem

    Line sharing modem

    LD-01BP DC

    The LD-01 is a four port line split modem allowing RS-232 systems to be connected in multidrop applications over long distance. The interface can be ether standard RS-232 or W1, a balanced current loop allowing transmission distances up
    to 18 km (11.18 mi). In multidrop applications the LD-01 acts as a repeater on the W1 interface.

    DIP switches are used for configuration options which make the unit simple to install. The serial interface is connected through a standard 9 pol D-sub or terminal block with screw connectors.

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    Line sharing modem

    LD-02

    Line sharing modem

    LD-02

    The LD-02 is a line split modem allowing RS-232 or RS-422/RS-485 systems to be connected. The LD-02 is designed to be use in multidrop applications over long distance using the repeater functionality, serial connection can be ether RS-232 or RS-422/485. The connection between the modems is W1 a balanced current loop interface allowing distances up to 18 km (11.18 mi).

    DIP switches are used for configuration options which make the unit simple to install. The serial interface is connected through a standard 9 pol D-sub or terminal block with screw connectors.

  • You've just added this product to the cart:

    Line sharing modem

    LD-01BP-DC

    Line sharing modem

    LD-01BP-DC

    The LD-01 is a four port line split modem allowing RS-232 systems to be connected in multidrop applications over long distance. The interface can be ether standard RS-232 or W1, a balanced current loop allowing transmission distances up to 18 km (11.18 mi). In multidrop applications the LD-01 acts as a repeater on the W1 interface.

    DIP switches are used for configuration options which make the unit simple to install. The serial interface is connected through a standard 9 pol D-sub or terminal block with screw connectors.

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    Multidrop modem

    TD-23 LV with relay

    TD-23-LV-with-relay Multidrop modem
    TD-23-LV-with-relay Multidrop modem

    Multidrop modem

    TD-23 LV with relay

    The TD-23 is a simple industrial modem designed to allow cost effective and easy multidrop access (max 16 drops) to legacy serial industrial equipment. Any asynchronous word format can be used from either RS-232 or RS-485 protocols.

    Designed with industrial locations in mind the modem can operate in extremes of temperature and electromagnetic field.The complete galvanic separation of all interfaces ensures earth loops and transients do not interfere with communication.

    There is both a low voltage and high voltage power version available.

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    Multidrop modem

    TD-23 LV

    TD-23-LV Multidrop modem
    TD-23-LV Multidrop modem

    Multidrop modem

    TD-23 LV

    The TD-23 is a simple industrial modem designed to allow cost effective and easy multidrop access (max 16 drops) to legacy serial industrial equipment. Any asynchronous word format can be used from either RS-232 or RS-485 protocols.

    Designed with industrial locations in mind the modem can operate in extremes of temperature and electromagnetic field.The complete galvanic separation of all interfaces ensures earth loops and transients do not interfere with communication.

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    Short-haul modem, point-to-point

    MD-12 AC

    MD-12-AC Short-haul modem, point-to-point
    MD-12-AC Short-haul modem, point-to-point

    Short-haul modem, point-to-point

    MD-12 AC

    The MD-12 is a short haul modem allowing RS-232 systems to be connected over long distance. The serial interface is a standard RS-232 interface with five control signals. The connection between the modems is a balanced current loop allowing distances up to 18 km. (11.18 mi).

    Since the communication is totally transparent no communication settings are necessary. The RS-232 serial interface is connected through a standard 9 pole D-sub or alternately through a terminal block with screw connectors.

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    Short-haul modem, point-to-point

    MD-12 DC

    MD-12-DC Short-haul modem, point-to-point
    MD-12-DC Short-haul modem, point-to-point

    Short-haul modem, point-to-point

    MD-12 DC

    The MD-12 is a short haul modem allowing RS-232 systems to be connected over long distance. The serial interface is a standard RS-232 interface with five control signals. The connection between the modems is a balanced current loop allowing distances up to 18 km. (11.18 mi).

    Since the communication is totally transparent no communication settings are necessary. The RS-232 serial interface is connected through a standard 9 pole D-sub or alternately through a terminal block with screw connectors.