IBM s-series, Инструкция по установке и эксплуатации, Страница: 55 / 170

Power precautions and warnings
CAUTION:
The power supplies are
″
hot swappable
″
, which means they can be removed
and replaced while the chassis is powered on and running. However, IBM
recommends that you disconnect the power supply from the wall outlet
before removing and replacing the supply. The device can be running while a
power supply is being installed or removed, but the power supply itself
should not be connected to a power source. Otherwise, you could be injured
or the power supply or other parts of the device could be damaged.
Attention: Use a separate branch circuit for each AC power cord, which provides
redundancy in case one of the circuits fails.
Attention: The POE power supply is designed exclusively for use with the
X-Series POE devices. The power supply produces extensive power to support
802.3af applications. Installing the power supply in a device other than the X-Series
POE will cause extensive damage to your equipment. Use a separate branch circuit
for each AC power cord, which provides redundancy in case one of the circuits fails.
Attention: Make sure the power supply is properly inserted in the slot. Never
insert the power supply upside down.
Attention: Do not attempt to install the power supply without first opening the
latch on the front of the power supply. Attempting to install the power supply with a
closed latch will result in mechanical damage to the power supply and power supply
slot.
Preparing the installation site
Cabling infrastructure
Note: Ensure that the proper cabling is installed in the site. for information on
cabling, see the following sections in this guide:
v “Attaching a management station” on page 37
v Chapter 4, “Connecting Network Devices and Checking Connectivity,” on page 45
v “Cable specifications” on page 127.
Installation location
Before installing the device, plan its location and orientation relative to other devices
and equipment. Allow at least 7.6 cm (3 in.) of space at the front of the device for
the fiber-optic and power cabling. Also, allow a minimum of 7.6 cm (3 in.) of space
between the sides and the back of the device and walls or other obstructions.
Removing extra shipment screws (B08S only)
The B08S ship with two extra screws installed in the right side of the chassis.
These screws secure the fan tray, protecting it from damage during shipment. You
must remove these screws before installing the chassis. Figure 16 on page 30
shows the location of the screws.
To perform this task, you need a #2 Phillips-head screwdriver.
Chapter 3. Installing the Chassis
29