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The NI9481 directly connects to a wide array of industrial devices such as motors, actuators, and DC devices. Each channel provides access to an electromechanical relay for switching signals up to 60�VDC (1�A) or 250�Vrms (2�A), features channel-to-channel isolation, and has a LED that indicates the status. The shock and vibration rating for the NI9481 is limited compared with other CompactDAQ and CompactRIO modules because of the mechanical relays on the module.