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Sun Datacenter Switch 3456 Installation Guide • December 2008
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To Remove Cable Trays
1. Remove the cables from the line card where the cable tray is to be removed.
See
“To Remove Cables From the Sun Datacenter Switch 3456” on page 102
2. Lift on the front of the cable tray and begin to pull the tray out.
Note –
Once the tray is free of the guides at the back end, the tray no longer has
support and will fall. Anticipate this behavior.
3. Support the back end of the cable tray and continue to pull the tray out and
away from the cable trees.
Cabling the Switch
A fully configured Sun Datacenter Switch 3456 has 1152 cables extending from the
line cards. Keeping these cables organized for identification and routing can be a
challenge. By following a cabling methodology of outside-in bottom-up and using
the cable guides, cabling can be made an easier task. Cabling starts at the bottom
row, A, of line card 0, at connector 23A (right) or 0A (left). Cabling then works its
way to the center connectors, 12A (right) or 11A (left). After row A is finished, you
populate row B in a similar manner. After line card 0 is finished, use the same
method for line card 1 and so on up to line card 23.
One person can cable the Sun Datacenter Switch 3456, but two two-person teams can
speed up the task more than four-fold. Because the cabling is symmetrical, one
cabling team can work on the left side of the Sun Datacenter Switch 3456, while the
other team works on the right side. Within each team, one person inserts the IB cable
connectors into the line card. The other person routes the IB cables through the cable
guides.
The IB cables are of a finite length, not exceeding 16 meters. When you consider that
constraint and the number of cables routing from the Sun Datacenter Switch 3456 to
other switches and systems, it becomes apparent that cable routing must be
thoroughly planned before being implemented. For the instructions provided here, it
is assumed that the cables will route from the Sun Datacenter Switch 3456. The other
ends of the cables are not discussed.
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