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A: Technical Specifications
Internal Components
The power bay contains a motherboard that connects the power supplies to the
connectors at the rear of the power bay; it serves as the power bus that buses the outputs
of the power supplies together to produce 48 Vdc and 12 Vdc standby. The power bay
motherboard also:
•
Contains overcurrent protection circuits for each power port.
•
Filters the DC voltage.
•
Contains a serial ID EEPROM that indicates the model and serial number of the
power bay.
•
Seats the system management card.
The system management card is the control system for the power bay. It contains
the logic that powers the power supplies and ports on and off and a serial ID
EEPROM that indicates the model and serial number of the unit. The L1 controller
uses the RS-485 signals of the DC power cables to read this PROM.
The system management card also performs the following functions:
•
Interfaces with the L1 controllers.
•
Provides a communication link between the power supplies and the power bay.
•
Monitors faults.
•
Provides access to data for the power bay and power supplies.
Содержание Origin 300
Страница 1: ...SGI Origin 300 System with NUMAlink Module User s Guide 007 4498 002 ...
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Страница 35: ...Base System Components 007 4498 002 9 Figure 1 7 Front and Rear Views of an SGI Origin 300 Base Module ...
Страница 39: ...Base System Components 007 4498 002 13 Figure 1 10 L2 Controller ...
Страница 49: ...Optional System Components 007 4498 002 23 Figure 1 17 SGI TP9400 Storage System ...
Страница 54: ...28 007 4498 002 1 Introduction Figure 1 18 Tape Drive Libraries L20 L40 L80 L180 L700 ...
Страница 71: ...Installing Your System 007 4498 002 45 Figure 2 5 Removing a Short Rack from the Shipping Crate Peg ...
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Страница 93: ...Disk Drives 007 4498 002 67 Figure 3 11 Installing a Disk Drive c Bezel door Disk drive Bezel door a b d ...
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