Getting this OID will cause the command pending status of all outlets to be returned.
The format of the data returned is a character string consisting
of the word 'Yes' if a command is pending for the outlet or 'No'
if there is no command pending for the outlet. At least one
space will delimit each outlet entry in the string.
If the pending states are unknown, the character string 'Unknown'
will be returned. This signifies that there is an inconsistency
in the PDU. In the rare case that this should happen, the user
is advised to shut down all equipment powered by the PDU and then
cycle the PDU's power. This will put the PDU in a consistent state.