IBM 5104-22C, Manual

– For racks with a DC power distribution panel (PDP), connect the customer’s DC power source

to the PDP. Ensure that the proper polarity is used when attaching the DC power and DC power

return wiring.

• Connect any equipment that will be attached to this product to properly wired outlets.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Do not attempt to switch on power to the machine until all possible unsafe conditions are

corrected.

• Assume that an electrical safety hazard is present. Perform all continuity, grounding, and power

checks specified during the subsystem installation procedures to ensure that the machine meets

safety requirements.

• Do not continue with the inspection if any unsafe conditions are present.
• Before you open the device covers, unless instructed otherwise in the installation and

configuration procedures: Disconnect the attached AC power cords, turn off the applicable

circuit breakers located in the rack power distribution panel (PDP), and disconnect any

telecommunications systems, networks, and modems.

DANGER:
• Connect and disconnect cables as described in the following procedures when installing,

moving, or opening covers on this product or attached devices.
To Disconnect:

1. Turn off everything (unless instructed otherwise).
2. For AC power, remove the power cords from the outlets.
3. For racks with a DC power distribution panel (PDP), turn off the circuit breakers located in the

PDP and remove the power from the Customer's DC power source.

4. Remove the signal cables from the connectors.
5. Remove all cables from the devices.

To Connect:

1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. For AC power, attach the power cords to the outlets.
5. For racks with a DC power distribution panel (PDP), restore the power from the Customer's

DC power source and turn on the circuit breakers located in the PDP.

6. Turn on the devices.

Sharp edges, corners and joints may be present in and around the system. Use care when

handling equipment to avoid cuts, scrapes and pinching. (D005)

(R001 part 1 of 2):

DANGER: Observe the following precautions when working on or around your IT rack system:
• Heavy equipment–personal injury or equipment damage might result if mishandled.
• Always lower the leveling pads on the rack cabinet.
• Always install stabilizer brackets on the rack cabinet unless the earthquake option is to be

installed.

• To avoid hazardous conditions due to uneven mechanical loading, always install the heaviest

devices in the bottom of the rack cabinet. Always install servers and optional devices starting

from the bottom of the rack cabinet.

vi  Power Systems: Installing the 5104-22C or 9006-22C