This value indicates whether a given access point is currently actually connected to its assigned Secondary AP Manager (SAM) controller, the failover counterpart to the PAM connection status in the same table row. A wireless administrator checks this to confirm failover redundancy is genuinely working, not just configured, before relying on it during a PAM outage. For example, seeing this as false right after the primary manager fails would show that the AP also isn't reaching its secondary manager, a more serious redundancy gap.