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007-4653-001
6: X-brick
Rear Panel Components
The X-brick has the following rear-panel components (see Figure 6-3).
•
Power switch.
Moving the power switch to the
1
position powers on the L1
controller of the X-brick, and moving it to the
0
position powers off the L1
controller.
•
12-VDC LED.
The 12-VDC LED illuminates green when the L1 controller is
powered on.
•
48-VDC LED.
The power switch must be in the ON (
1
) position for this LED to
illuminate. The 48-VDC LED illuminates green when the rest of the X-brick internal
components are powered on.
•
PWR (power) connector.
This connector connects to a power bay, which provides
power to the X-brick.
•
XIO card slots.
These slots seat the XIO cards. The slots are numbered 1 through 4
as shown in Figure 6-3. Each slot can seat one XIO card with power levels up to
50 W.
Warning:
To avoid personal injury or damage to your system, only qualified SGI
system support engineers (SSEs) can install and replace XIO cards.
•
XIO 10 and XIO 11 connectors.
Each connector can connect the X-brick to one IP53
node board. As an option, the second connector can connect to another IP53 node
board to create a dual-ported X-brick, which provides greater bandwidth.
•
XIO 10 and XIO 11 connector LEDs.
Each connector has two LEDs, as follows:
–
The yellow LED illuminates to indicate that both the X-brick and the IP53 node
board to which it is connected are powered on.
–
The green LED illuminates when a link has been established between the
X-brick and the IP53 node board to which it connects.
Summary of Contents for Origin 3900
Page 1: ...SGI Origin 3900 Server User s Guide 007 4653 001 ...
Page 3: ...007 4653 001 iii Record of Revision Version Description 001 October 2003 Original Release ...
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