A stream of bytes representing the pair reversal status for each span. The MSB is for span 1 (e.g. from the H4TUC to the H4TUR/H4RU1), the next byte is for span 2 (e.g. from the H4RU1 to the H4TUR/H4RU2), and next byte is for span 3 (e.g. from the H4RU2 to the H4TUR), etc. For each byte, 0 = pairs not reversed, 1 = pairs are reversed. If a span is not applicable, such as when no repeaters are present, that byte will be zero.