The status of the current value when compared to the warning and
alarm levels for the receiving or transmitting transceiver. Possible
states include: - OK: The value has not crossed a warning threshold.
LOW_WARNING: The value has crossed below the low warning
threshold. - HIGH_WARNING: The value has crossed above the high
warning threshold. - LOW_ALARM: The value has crossed below the low
alarm threshold. - HIGH_ALARM: The value has crossed above the high
alarm threshold.