Digital Sign Neo Vision Control Connection Settings

Connection Settings within the software:

Serial Port: COM4
Baud Rate: 115200

Open Device Manager. Under 'Ports', find 'Silicon Labs CP210x USB to UART Bridge (COM4)'.
Open Property / Port Settings, change the Bits per second to 115200.

On the USB device, 'Role select switch' should be 'Master', 'Mode select switch' should be 'DIP Switch Mode'.