Sun Microsystems 5500, Справочное руководство

Страница: 32 / 304

1-6 Sun Enterprise 6500/5500/4500 Systems Reference Manual • April 1998
FIGURE 1-5
Enterprise 4500 System
1.4 Definitions of Terms
Centerplane — all Sun Enterprise X500 server systems use a centerplane. The
orientation of the sockets on the rear of the centerplane is opposite the orientation of
sockets on the front of the centerplane.
Board orientation — Boards in the front of the card cage are installed component
side down, and boards in the rear of the card cage are installed component side up.
Similarly, the orientation of the power/cooling modules installed in the rear of the
system chassis is opposite the orientation of power/cooling modules in the front of
the system chassis.
Viewer orientation — Since boards, modules, and power/cooling modules may be
located on either side of the Enterprise server chassis centerplane, the terms “front,”
“rear,” “right,” and “left” are defined in
TABLE 1-1
.
TABLE 1-1
Definitions of Terms
Orientation of the Server
Front The key switch is located here.
Rear The AC power switch and cable are located here.
Front Rear