System Installation and Configuration96-30051-001 Rev. D3 DDN SFA12K (SFA OS 2.3.1) Hardware Installation & Configuration Guide | 15Controller 1’s BBUModel 5P1550GRController 0Controller 0’s BBUController 1Controller 0’s ATSController 1’s ATSFigure 6. Connecting SFA12K-20 Controllers to ATSs and BBU Model 5P1550GRModel 5P1550GRInfiniBand cable AC power cable USB cable