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MA-29

MA-29
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MA-29 20 mA Current loop converter … Conversion between 20 mA current loop and RS-232 … Galvanic isolation (with passive receiver) … Transient suppression … Code independent/transparent … Ensures communication over long distances and in environments with high levels of interference … Reliable performance and function Field of application 168 MA-29 is used in point-to-point applications where interface conversion from a 20 mA current loop to RS-232 is required to permit communication between different devices. In some cases the converters are used for connection in loops, these are then limited to a total of 6 connected devices. The converter can be set “active” to supply the line with current or “passive” depending on how the connected device is configured. Date rates up to 19.2 kbit/s and transmission ranges up to 6 km (3.73 mi) are possible depending on the data rate. MA-29 is designed for installation in the Westermo rack (RV-01) which save space when many converters are installed in the same location, for example, in a data processing centre. Converter, 20 mA current loop www.westermo.com

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Application Also see application on page 55 Interface DIP-switches Line connection RS-232 LED indicators Line connection 20 mA balanced current loop via 5-pos. screw terminal. (see page 185) Mechanical Dimensions (H x D) Weight Assembly 100 x 100 mm (3.94 x 3.94 in) 0.1 kg (0.22 lb) Rack Power Rated current Connection www.westermo.com RV-01 via PS-02 40 mA PS-02 Converter, 20 mA current loop 169

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