The status of this serialConnectionEntry.
If the manager attempts to set this object to active(1) when
the serialConnectType is set to modem(2) or modem-switch(4)
and the serialConnectDialString is a zero-length string or
cannot be correctly parsed as a ConnectString, the set
request will be rejected with badValue(3).
If the manager attempts to set this object to active(1) when
the serialConnectType is set to switch(3) or modem-switch(4)
and the serialConnectSwitchConnectSeq,
the serialConnectSwitchDisconnectSeq, or
the serialConnectSwitchResetSeq is a zero-length string
or cannot be correctly parsed as a ConnectString, the set
request will be rejected with badValue(3).
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.