Machines and plants are often connected to the internet via mobile radio using an industrial 4G router or an industrial PC with a SIM card interface set up as a gateway. Whatever hardware is used, a SIM card from a provider is always required for a successful data connection. While in large companies and corporations the question of the "right" provider often does not arise at all, because this has already been regulated in the long term by the corresponding departments, the medium-sized machine manufacturer, the small plant operator and every local system integrator ...
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