Contains procedures for isolating a problem in the power system.
Some field replaceable units (FRUs) can be replaced with the unit powered
on. Follow the instructions in Removing and replacing parts when directed to remove,
exchange, or install a FRU.
The following safety notices apply throughout the power isolation procedures.
Please read all safety procedures before servicing the system and observe
all safety procedures when performing a procedure.
DANGER
When working on or around the system, observe
the following precautions:
Electrical voltage and current from power, telephone,
and communication cables are hazardous. To avoid a shock hazard:
- Connect power to this unit only with the IBM provided
power cord. Do not use the IBM provided power cord
for any other product.
- Do not open or service any power supply assembly.
- Do not connect or disconnect any cables or perform installation, maintenance,
or reconfiguration of this product during an electrical storm.
- The product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords.
- Connect all power cords to a properly wired and grounded electrical outlet.
Ensure that the outlet supplies proper voltage and phase rotation according
to the system rating plate.
- 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.
- Disconnect the attached power cords, telecommunications systems, networks,
and modems before you open the device covers, unless instructed otherwise
in the installation and configuration procedures.
- Connect and disconnect cables as described in the following procedures
when installing, moving, or opening covers on this product or attached devices.
To
Disconnect:
- Turn off everything (unless instructed otherwise).
- Remove the power cords from the outlets.
- Remove the signal cables from the connectors.
- Remove all cables from the devices
To Connect:
- Turn off everything (unless instructed otherwise).
- Attach all cables to the devices.
- Attach the signal cables to the connectors.
- Attach the power cords to the outlets.
- Turn on the devices.
(D005)
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