Hardware for the seismic subsystem of the tsunami warning service

The paper deals with the reasoning of hardware selection for reference, auxiliary, and strong motion seismic stations for the upgraded seismic subsystem of the tsunami warning service. The structure of subsystem elements and equipment types are described, and their technical characteristics are given. Types and testing procedure are defined, starting from the stage of preparation of the technical project for the designing of software and hardware complexes of specialized seismic stations until the customer acceptance of them to the permanent maintenance.