IBM Slicestor 3448, Руководство пользователя

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v ! (bottom LED)
The following figure shows the LEDs.
The LEDs are driven by internal circuitry and illuminate in an N+1 configuration even without input
power. See the following table for the power supply LED meanings.
Table 4. Power supply LED meanings
Power supply condition Power supply LEDs
No AC power to all PSUs Off
No AC power to this PSU AC LED 1 Hz flashing green
AC present/only standby output on/ CR-State AC LED green
Power supply DC output ON and OK AC and DC LED green
Power supply failure FAIL LED amber
Power supply warning 1 Hz flashing amber
Follow these steps to replace a failed power supply.
1. Unplug the power cord.
CAUTION:
After you remove the power cord, wait for at least 15 seconds before you attempt to remove the
power supply unit for maintenance or repair to avoid accidental shock or personal injury due to
any residual power supply electrical charge.
2. Actuate the green power supply lever to release the power supply.
3. Slide the power supply out of the chassis, as shown in the following figure.
Figure 14. Power supply LEDs
Chapter 5. Field replaceable or upgrade units
19