IBM 5U92 Manual Download

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• Each rack cabinet might have more than one power cord. Be sure to disconnect all power cords

in the rack cabinet when directed to disconnect power during servicing.

• Connect all devices installed in a rack cabinet to power devices installed in the same rack

cabinet. Do not plug a power cord from a device installed in one rack cabinet into a power device

installed in a different rack cabinet.

• An electrical outlet that is not correctly wired could place hazardous voltage on the metal parts

of the system or the devices that attach to the system. It is the responsibility of the customer to

ensure that the outlet is correctly wired and grounded to prevent an electrical shock. (R001 part

1 of 2)

CAUTION:
• Do not install a unit in a rack where the internal rack ambient temperatures will exceed the

manufacturer's recommended ambient temperature for all your rack-mounted devices.

• Do not install a unit in a rack where the air flow is compromised. Ensure that air flow is not

blocked or reduced on any side, front, or back of a unit used for air flow through the unit.

• Consideration should be given to the connection of the equipment to the supply circuit so that

overloading of the circuits does not compromise the supply wiring or overcurrent protection. To

provide the correct power connection to a rack, refer to the rating labels located on the

equipment in the rack to determine the total power requirement of the supply circuit.

• (For sliding drawers) Do not pull out or install any drawer or feature if the rack stabilizer brackets

are not attached to the rack. Do not pull out more than one drawer at a time. The rack might

become unstable if you pull out more than one drawer at a time.

• (For fixed drawers) This drawer is a fixed drawer and must not be moved for servicing unless

specified by the manufacturer. Attempting to move the drawer partially or completely out of the

rack might cause the rack to become unstable or cause the drawer to fall out of the rack. (R001

part 2 of 2)

CAUTION: Removing components from the upper positions in the rack cabinet improves rack

stability during a relocation. Follow these general guidelines whenever you relocate a populated

rack cabinet within a room or building.
• Reduce the weight of the rack cabinet by removing equipment starting at the top of the rack

cabinet. When possible, restore the rack cabinet to the configuration of the rack cabinet as you

received it. If this configuration is not known, you must observe the following precautions.
– Remove all devices in the 32U position and above.
– Ensure that the heaviest devices are installed in the bottom of the rack cabinet.
– Ensure that there are no empty U-levels between devices installed in the rack cabinet below

the 32U level.

• If the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet

from the suite.

• If the rack cabinet you are relocating was supplied with removable outriggers they must be

reinstalled before the cabinet is relocated.

• Inspect the route that you plan to take to eliminate potential hazards.
• Verify that the route that you choose can support the weight of the loaded rack cabinet. Refer to

the documentation that comes with your rack cabinet for the weight of a loaded rack cabinet.

• Verify that all door openings are at least 760 x 230 mm (30 x 80 in.).
• Ensure that all devices, shelves, drawers, doors, and cables are secure.
• Ensure that the four leveling pads are raised to their highest position.
• Ensure that there is no stabilizer bracket installed on the rack cabinet during movement.
• Do not use a ramp inclined at more than 10 degrees.
• When the rack cabinet is in the new location, complete the following steps:

– Lower the four leveling pads.

Chapter 2. Installing the system hardware 31