IBM N7800 Hardware And Service Manual page 6

A comprehensive danger notice provides instructions on how to avoid shock
hazards when servicing equipment. Unless instructed otherwise, follow the
procedures in the following danger notice.
iv
IBM System Storage: N7000 Series Hardware and Service Guide
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:
v Connect power to this unit only with the IBM provided power
cord. Do not use the IBM provided power cord for any other
product.
v Do not open or service any power supply assembly.
v Do not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an
electrical storm.
v The product might be equipped with multiple power cords. To
remove all hazardous voltages, disconnect all power cords.
v Connect all power cords to a properly wired and grounded
electrical outlet. Ensure outlet supplies proper voltage and phase
rotation according to the system rating plate.
v Connect any equipment that will be attached to this product to
properly wired outlets.
v When possible, use one hand only to connect or disconnect
signal cables.
v Never turn on any equipment when there is evidence of fire,
water, or structural damage.
v 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.
v Connect and disconnect cables as described below when
installing, moving, or opening covers on this product or attached
devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove power cords from the outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to devices.
3. Attach signal cables to the connectors.
4. Attach power cords to the outlets.
5. Turn on the devices.
(D005)