Fan Tray Leds; Table 4-1 Fan Tray Components; Table 4-2 Fan Tray Valid Led Status - Sun Microsystems Sun Fire E25K Service Manual

For your protection, also observe the following safety precautions when setting up
your equipment:
Follow all cautions and instructions marked on the equipment.
I
Always use proper ESD equipment and procedures when handling boards and
I
components.
Never push objects of any kind through openings in the equipment as they might
I
touch dangerous voltage points or short out components that can result in fire or
electric shock.
Refer servicing of equipment to qualified personnel.
I
4.1

Fan Tray LEDs

Fan tray components and LEDs are listed in
TABLE 4-1
Total Number of Fan Trays
Per System Per Side
TABLE 4-2
LEDs After Insertion
or Initial System Power On
Active Service Remove Active Service Remove Active Service Remove Active Service Remove
on
FIGURE 4-2
4-2 Sun Fire E25K/E20K Systems Service Manual • April 2004
Fan Tray Components
Total Number of Fan Trays
Per Fan Shelf Per Side
4
Fan Tray Valid LED Status
LEDs After Presence
is Detected
off off on off
illustrates the fan tray and the LED locations.
and
TABLE 4-1
Number of LEDs Per
Fan Tray
2 3
Component Powered On
off on off
.
TABLE 4-2
Number of Fans Per
Fan Tray
12
Component Powered Off
off off off on