R13-66B8-02-BBY is a part of Siemens Coastal Instruments, Inc. (SCI). This part is a type Resolver Controller that provides precise, yet adjustable, frequency and position control for servo motors, drive systems, and encoders. It offers high speed output frequency up to 66.66 Hz and resolution up to 1,048,576 lines. It features built-in signal conditioning, status indication, and low speed operation with stepped input. The case of this specific part is black, and has a two-level output. The R13-66B8-02-BBY is typically used in demanding applications such as automation, robotics, and aeronautics.