Front Components - Silicon Graphics Origin 300 User Manual

A: Technical Specifications

Front Components

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The AC- and DC-powered NUMAlink modules contain the following front-panel items
(refer to Figure A-9):
• L1 display is a 2-line by 12-character liquid crystal display (LCD) that displays
status and error messages that the L1 controller generates.
• On/Off button with LED enables you to manually power on and power off the
module.
• L1 controller LEDs function as follows:
– On/Off button LED illuminates green when the internal components are
powered on.
– Service required LED illuminates orange to indicate that an item is not
functioning properly (for example, a fan is off), but the NUMAlink module is
still operating.
– Failure LED illuminates red to indicate that a failure has occurred and the
NUMAlink module is down.
• Fans that provide N+1 redundant cooling for the module.
Note: The front of the NUMAlink module appears to display three cooling fans;
however, only the middle and right fans are present.
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