IBM 7013 J Series, Operator'S Manual

Page: 200 / 297

9-2
Operator Guide
Installation Procedures
Preliminary Operations
Before connecting an expansion unit to a base unit, perform the following preliminary
operations.
Note: For a translation of these notices, see System Unit Safety Information.
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.
CAUTION:
This product is equipped with a three-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.
1. If the machine is running, perform a system shutdown first. For further information about the
shutdown procedure, please refer to the shutdown command in the commands reference
for your operating system.
2. Power off the machine by pushing the power button on the operator panel. If you need more
detailed information, please see page 2-3 .
Power Button