System Installation and Configuration96-30051-001 Rev. D3 DDN SFA12K (SFA OS 2.3.1) Hardware Installation & Configuration Guide | 29❖ Verify that the Power On indicator stays ON, indicating a successful powerapplication. If the On Battery indicator is ON, check the power input to the BBU.❖ If the Alarm indicator is ON, do not proceed until all alarms are clear. Refer to theBBU documentation for troubleshooting information.❖ Continue from step 76. On both BBUs (Model 1550) (Figure 24):❖ Press and hold the Power button on the front panel for 1 second to turn on the unit.The buzzer beeps once and all the LEDs go ON momentarily.❖ Verify that the Power LED and Load Protected LED stay ON, indicating a successfulpower application. If the Degraded Operation LED is ON, check the power input tothe BBU.❖ Verify that both Load Segment 1 and Load Segment 2 LEDs turn ON after 13 seconds7. Turn on both controllers:❖ Remove the controller front bezel❖ Press the power button once (Figure 25)❖ Reinstall the front bezel8. On both controllers (Figure 25):❖ Verify that the Power indicator is green❖ The PSU Fault LED turns on during power up. Verify that it turns off after13 seconds. If not, check the controller’s power supplies at the back.❖ Verify that the Enclosure Info LED is off. If not, check the fan or power conditionaccording to the LED color:• Solid amber: overheat• Blink amber (1 Hz): fan fail• Blink amber (0.25 Hz): power fail (PSU missing or AC missing)• Blink blue: locate enclosure command receivedFigure 24. BBU Front PanelPower Button/LEDLoad Protected LEDDegradedOperation LEDLoad Segment 1Load Segment 2Figure 25. Controller Power Button and LEDsPower ButtonPower Indicator (Green)PSU Fault LED (Off ) Enclosure Info (Off )
