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1. Power Supply DC Status LED
2. Power Supply AC Status LED
3. Fan Assembly Status LED
Figure 34. SAN128B-7 Nonport-side LEDs
Power supply LEDs
The following table interprets the power supply LEDs during normal operation.
Note: If both the AC and DC status LEDs are black/off, the power supply is off.
Table 12. Nonport-Side LED patterns during normal operation
LED name
Power supply AC input
status (one green LED)
52 IBM Storage Networking SAN128B-7: SAN128B-7 Installation, Service, and User Guide
LED color
No light
Steady green
Status of hardware
Power supply is
not receiving AC
input voltage, or the
operational limit.
AC input voltage is
within operational range.
Recommended action
Verify that the power
supply is properly
seated and that the
power cord is connected
to a functioning AC
power source.
No action required.
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