HP Carrier-grade cc3300 UserÆs Guide and Technical UserÆs Gu - Page 34
AC Power Subsystem, Introduction
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AC Power Subsystem This section defines the AC-input switching power subsystem. OM12864 Figure 9. AC-Power Supply Subsystem Features • 250 W output capability in full AC input voltage range • "Power Good" indication LEDs • Predictive failure warning • Internal cooling fans with multi-speed capability • Remote sense of 3.3 V, 5 V, and 12 VDC outputs • AC_OK circuitry for brown out protection and recovery • Built-in load sharing capability • Built-in overloading protection capability • Onboard field replaceable unit (FRU) information • I2C interface for server management functions • Integral handle for insertion/extraction Introduction The AC version of the cc2300 Carrier Grade Server uses an AC input switching power subsystem which provides up to 250 W DC with 110 - 220 VAC input and with current and remote sense regulation. Refer to Table 11 for conditions of the power supply LEDs. Table 11. LED Indicators Power Supply Condition No AC power to all PSU No AC power to this PSU only DC present / Only Standby Outputs On Power supply DC outputs ON and OK Power Supply in Alert Condition Power supply failure (OTP, OCP, OVP, UV) Power Supply LED OFF AMBER BLINK GREEN GREEN BLINK AMBER AMBER 34 cc2300 Carrier Grade Server Product Guide