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Westermo was established in 1975 during the infancy of industrial data communication networks. Tore Andersson the founder of the company recognised the need for reliable data communications in the industrial environment at an early stage. The prevalent data communication standard at the time was RS-232 which could manage to transmit data only a few metres and was susceptible to the noise and earth loops found in industry. Westermo designs and manufactures data communications products for mission-critical systems in physically demanding environments. The products are used both in social infrastructure, such as transport, water and energy supplies, as well as in process industries, such as mining and petrochemical.