IBM 7015-R30, Installation And Service Manual

Page: 195 / 300

Removal and Replacement
4-73
Adapter Cable
Note: For a translation of this notice, see the
System Unit Safety Information manual, form
number SA23-2629.
DANGER
An electrical outlet that is not correctly wired could place hazardous voltage
on 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.
Before installing or removing signal cables, ensure that the power cables for
the system unit and all attached devices are unplugged.
When adding or removing any additional devices to or from the system,
ensure that the power cables for those devices are unplugged before the
signal cables are connected. If possible, disconnect all power cables from
the existing system before you add a device.
Use one hand, when possible, to connect or disconnect signal cables to
prevent a possible shock from touching two surfaces with different electrical
potentials.
During an electrical storm, do not connect cables for display stations,
printers, telephones, or station protectors for communications lines.
Removal
1. Depending on the type of power distribution in your rack, do one of the following:
•
“Power-Off Procedure with a Power Distribution Bus” on page 4-2.
•
“Power-Off Procedure with a Power Distribution Unit” on page 4-5.
•
“Power-Off Procedure with a Power Distribution Panel” on page 4-9.