The channel configuration describes the payload contents of all channels
making up this channelized path.
These two enumerations describe the lower bandwidth component timeslots.
These values also serve as a validation when creating, for example, a
vt1.5 whose outerIndex corresponds to this row. It should be noted that
when changing these values (tdm-ony and data-and-tdm), brief service
interruptsion can result on all timeslots that are lower bandwidth
components of this timeslot.
This object is ignored if this row describes a timeslot that is NOT
broken down further into lower bandwidth timeslots.