Removing And Replacing A Power Supply; Removing An 820-Watt Power Supply - 3Com Switch 4007R Getting Started Manual

30 C 5: M
HAPTER AINTAINING THE
Cables that run from each installed module are
I
securely attached and in good condition.
If rack-mounted, the chassis and the cable
I
management device are securely attached to your
rack.

Removing and Replacing a Power Supply

This section describes how to remove and then
replace the 820-watt AC power supply in the 8-slot
chassis power supply (Model Number 3CB9EP8)
CAUTION: When you replace a power supply, leave
a sufficient number of power supplies running at
all times to satisfy the power requirements of
installed modules. If you have an installed
Enterprise Management Engine (EME), enter the
show power budget
power conditions for the Switch 4007R. If you
determine that removal of a defective, but still
functioning, power supply will not cause a power
deficit in the Switch, you can remove the faulty
power supply without losing power to any
modules.
WARNING: Before you attempt to remove an
820-watt AC power supply from the chassis, to avoid
contact with hazardous energy, be sure to set the
power supply's On/Off switch to the Off ( Ο ) position
and to disconnect the power cord from both the
electrical outlet and then the power supply.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
S 4007R
WITCH
command to display current
these components fail, remove them as described
here and return the components to your supplier.
Keep replacement power supply units and fan trays at
your site so they are available if needed.

Removing an 820-watt Power Supply

The Switch 4007R 8-slot chassis can accommodate up
to three 820-watt modular load-sharing power
supplies.
Figure 7 shows an 820-watt AC power supply in an
8-slot chassis.