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M
AINTENANCE FOR THE
8
16-S
THE
This chapter describes the routine maintenance to
perform to keep your CoreBuilder
Switch 8-slot chassis and 16-slot chassis working at
their best. This chapter also provides instructions for
replacing power supplies and fan trays.
WARNING: Only trained electrical service personnel
should perform Switch connections and
disconnections.
WARNING: Hazardous energy levels exist inside of
the chassis. Do not place hands or objects into the
Switch or touch components on an inserted module.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
these components fail, remove them as described in
this chapter and return them to your supplier. Keep
replacement power supply units and fan trays at your
site so that they are available if needed.
This chapter contains the following topics:
Routine Maintenance
Removing and Replacing a Power Supply
Removing and Replacing a Fan Tray
C
LOT
HASSIS
®
9000 Enterprise
8-SL
C
OT
Routine Maintenance
On a regular basis, inspect your CoreBuilder 9000
chassis to verify that:
All blank faceplates are securely attached to the
chassis.
Two fans trays are running in the 8-slot chassis and
three fan trays are running in the 16-slot chassis.
CAUTION: The CoreBuilder 9000 8-slot Switch and
16-slot Switch send a trap message and can
continue to run if one fan fails in one fan tray.
However, if a second or third fan fails, in that same
fan tray, no trap message is generated. Replace the
fan tray within 48 hours of receiving the trap
message or contact your service representative.
Run the Switch with a full complement of fan trays.
Ventilation to the Switch is unobstructed.
All modules are securely seated in the backplane
and firmly attached to the chassis.
Module LEDs are functioning normally and show
normal readings.
Power requirements for all installed modules are
met by the power supplies.
Power cords from each power supply are not
frayed or damaged.
HASSIS AND
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