The display serial number is a 15 character string with "ICD-zz-yyy-xxxx" as format:
- zz: 'IT' or 'IC', depending on whether the device is meant to display IceTop or IceCube data.
- yyy: Sequential number indicating the display model. All displays with the same zz-yyy value should be able to use the same device firmware.
- xxxx: Sequential number to provide a unique identifier for the hardware.