Sun Microsystems Netra CT 410, Service Manual

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6-30 Netra CT Server Service Manual • February 2007
6.2.2 Satellite and I/O Rear Transition Modules
This section describes the pairings of satellite boards and rear transition modules,
and it explains how to remove and replace satellite rear transition modules (RTMs).
6.2.2.1 Satellite Rear Transition Module Sets
A satellite rear transition module set consists of two separate boards:
■
The satellite board
■
The satellite rear transition module
The satellite board is installed from the front of the Netra CT server; however, no
cables are connected to the satellite CPU board.
The following are possible satellite board and rear transition module combinations:
■
Netra CP2160 and XCP2060-TRN I/O rear transition module
■
Netra CP2500 and Netra CP2500 RTM-S (rear transition module-satellite)
The rear transition module extends the ports from the PMCs installed in the satellite
CPU board to the PMC I/O module (PIM) installed in the satellite CPU rear
transition module. The satellite CPU board must be installed in the same slot at the
front of the server for the satellite CPU rear transition module to work. For example,
if you install a satellite CPU rear transition module in I/O slot 3 at the rear of a
Netra CT 810 server, you must install the accompanying satellite CPU 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 satellite
CPU board
and the satellite CPU rear transition module.
FIGURE 6-21
and
FIGURE 6-22
show graphical representations of how the satellite CPU boards align with the
satellite CPU rear transition modules. 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.