<xs:simpleType name="DataTransferSpeedUom">
  <xs:restriction base="eml:UomEnum">
    <xs:enumeration value="bit/s">
      <xs:annotation>
        <xs:documentation>bit per second</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="byte/s">
      <xs:annotation>
        <xs:documentation>byte per second</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>