Figure B-1 Enterprise 3500 System- Front View - Sun Microsystems Enterprise 3500 System Reference Manual

The rear of the cabinet contains the peripheral power supply/AC (PPS0, with power
switch and AC cable socket), the clock+ board, the interface board (optional) or filler
panel, the board slots, and the PCM slots.
Air circulation inside the cabinet is provided by fans in the power/cooling modules
and in the fan tray. The PCMs have two fans each. The fans provide cooling for the
PCM itself, plus two adjacent board slots. PCM slot 5 must contain either a fan tray
or a spare PCM. These fans cool the peripheral power supply.
Note – PCM slot 5 may contain either an auxiliary fan tray or a spare PCM.
All empty slots require filler panels for proper airflow, cooling, and EMI protection.
Media tray
DVD-ROM/tape
Internal
Fan tray
FIGURE B-1
B-2 Sun Enterprise 3500 System Reference Manual • August 2001
Enterprise 3500 System— Front View
Key switch
Auxiliary peripheral
power supply (PPS)