IBM 343 Manuale Utente
Chassis Description
23
Power Supplies
The power supply cage shown in Figure 8 is accessed from the rear of the chassis. The power
supply cage supports up to two hot-swap 350 W DC input power supplies in a (1 + 1) redundant
configuration. A power supply filler) for the empty power supply site is supplied for systems
without redundancy.
supply cage supports up to two hot-swap 350 W DC input power supplies in a (1 + 1) redundant
configuration. A power supply filler) for the empty power supply site is supplied for systems
without redundancy.
The power supply is NEBS certified.
OM14224
Figure 8. Non-redundant DC-Power Supply Subsystem (Filler Module shown at Left)
DC Power Subsystem
This section defines the features of the DC input switching power subsystem.
Features
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350 W output capability in full DC input voltage range
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“Power Good” indication LEDs
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Predictive failure warning
•
Internal cooling fans with multi-speed capability
•
Remote sense of 3.3 Volt, 5 Volt, and 12 Volt DC outputs
•
“DC_OK” circuitry for brown out protection and recovery
•
Built-in load sharing capability
•
Built-in overloading protection capability
•
Onboard field replaceable unit (FRU) information
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I
2
C interface for server management functions
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Integral handle for insertion/extraction