The Status column shows the status of the selected circuit during the 15-minute intervals. The Status values are A or a (capital A means endpoint A was switched from alternate to primary and lower-case a means the endpoint A was switched from primary to alternate); B or b (capital B means endpoint B was switched from alternate to primary, lower-caseb means endpoint B was switched from primary to alternate); D (connection was down during that period); and S (circuit was placed in standby state during that period).
