Dell PowerVault Storage MD1280 Dell Storage MD1280 Service Guide - Page 11

Table 5. PSU features and indicators Item Control/Feature 1 Release latch 2 PSU fault Icon 3 AC fault 4 Power OK 5 Power Connector 6 Power switch Description Releases PSU from enclosure • Amber (steady) - PSU fault or PSU not working • Amber (blinking) - PSU firmware is downloading • Amber (steady) - AC power is not detected • Amber (blinking) - PSU firmware is downloading • Green (steady) - PSU is working • Green (blinking) - AC power is present, but the PSU is in standby mode (the other PSU is working) Connect the external power supply source to this connector. The power switch controls the PSU output to the system. If all three LEDs are off then there is no AC power supplied to either PSU. DDIC indicator The Disk Drive In Carrier (DDIC) includes one status indicator. Figure 6. DDIC indicator 11