Connects to a PC or Laptop using our USB Cable or to any other host which incorporates an RS-232 serial port. Stack multiple cards together on the same port. Manages those precise timing-related functions and calculations needed in many laboratory testing applications. Simple command strings sent from the host will evoke the necessary series of self-timed measurements and conversions required to obtain the result. Data will be returned in direct engineering units for ease of interpretation by the user. Because of its autonomous execution, the module is not restrained by typical interface and/or data bus limitations, nor does it place any timing critical demand on the host's processor. And since it is stackable, the host can initiate multiple timing-related acquisitions which will process concurrently.