| Description | When queried with index value apsChanConfigNumber other than
0, this object will return the number of times this channel
has switched to the protection line.
When queried with index value apsChanConfigNumber set to 0,
which is the protection line, this object will return the
number of times that any working channel has been switched
back to the working line from this protection line.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
apsChanStatusDiscontinuityTime. |