Sun Microsystems Netra CT 410, Руководство по обслуживанию

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6-32 Netra CT Server Service Manual • February 2007
6.2.2.2 I/O Rear Transition Module Sets
The I/O rear transition module set consists of two separate boards:
■
The I/O board
■
The I/O rear transition module
The I/O board contains the application-specific integrated circuit (ASIC) for the
associated I/O board and is installed from the front of the server; however, no cables
are connected to the I/O board.
The I/O rear transition module extends the ports for a particular I/O board to the
rear of the server. The I/O rear transition module and the I/O board must be
installed in the same slot at the front of the server for the I/O rear transition module
to work. For example, if you install an I/O rear transition module in I/O slot 3 at the
rear of a Netra CT 810 server, you must install the accompanying I/O board in I/O
slot 3 at the front of the server.
When one of the two components fails, you might not be able to determine which of
the components failed. Because of this, you might want to replace both the I/O
board
and the I/O rear transition module.
FIGURE 6-21
and
FIGURE 6-22
show
graphical representations of how the I/O boards align with the I/O rear transition
modules. Note that, if you are facing the
front of the server, the I/O slots read from
left to right , whereas they read from right to left if you are facing the rear of the server.
6.2.2.3 Removing and Installing Satellite CPU or I/O Rear Transition
Module Sets
■
If you are removing and replacing faulty boards in the server, first to go
“Removing a Satellite CPU or I/O Rear Transition Module” on page 32 , then go to
“Installing a Satellite CPU or I/O Rear Transition Module” on page 34 .
■
If you are installing new boards in the server, go to “Installing a Satellite CPU or
I/O Rear Transition Module” on page 34 .
Removing a Satellite CPU or I/O Rear Transition Module
1. Attach the antistatic wrist strap.
See Section 1.2, “Attaching the Antistatic Wrist Strap” on page 1-2 .
2. Locate the board slot that holds the satellite CPU or I/O board.
■ FIGURE 6-21
shows the satellite CPU or I/O board slots in a Netra CT 810 server.
■
FIGURE 6-22
shows the satellite CPU or I/O board slots in a Netra CT 410 server.
3. Remove the satellite CPU or I/O board from the front of the Netra CT server.
See Section 6.1.2.1, “Removing a Board” on page 6-9 .