@staticmethod
def swbbName_to_IFid(swbbName):
    """Converts values found in the VCI baseBand.swbbName property to
        matching values as used in the OBS sslo.IFid property.

        swbbNames are like AC_8BIT, A1C1_3BIT, etc.
        IFids are like AC, AC1, etc."""
    conversions = {'A1C1': 'AC1', 'A2C2': 'AC2', 'B1D1': 'BD1', 'B2D2': 'BD2'}
    bbname, bits = swbbName.split('_')
    if bbname in conversions:
        return conversions[bbname]
    return bbname
