Ensure the CIT baud rate matches the controller (usually 125kbps or 250kbps).

Because Curtis Instruments does not publicly host legacy software on their main website (they prefer to push customers to newer versions or authorized dealers), you must follow a specific protocol.

To run CIT v1.5 or newer versions properly, your PC must meet the following minimum specs: : Microsoft Windows 10 x64 (in-service versions). Processor : 64-bit. Memory : 4GB minimum (8GB recommended).