IBM 7015-R30, Installation And Service Manual

Page: 129 / 300

Removal and Replacement Procedures
4-7
Power-On Procedure with a Power Distribution Unit
1. Set the key mode switch to the Service position.
Key Mode Switch
Normal
Secure
Service
Operator Panel
Note: For a translation of this notice, see the System Unit Safety Information manual.
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 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.
CAUTION:
This product is equipped with a 3-wire power cable and plug for the user’s safety. Use
this power cable in conjunction with a properly grounded electrical outlet to avoid
electrical shock.
2. Plug the system unit power cord into the electrical outlet.