This read-only value reports the Secondary State of a Pulse-Per-Second (PPS) timing port, giving a finer-grained status than a simple up/down indication. An administrator relies on it to see the specific reason a PPS output is degraded, such as an unassigned or mismatched condition, when a downstream device is not receiving a clean timing pulse. For example, after a GPS antenna fault a technician might see this object report a fault-related secondary state on the PPS port even while the port's basic admin state still shows enabled.