IBM 9114-275 Installation Guide - Page 39

Installing Options, Use one hand, when possible

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Chapter 3. Installing Options This chapter provides procedures for installing options in the Model 275 system unit. Notes: 1. Installing options in the Model 275 can be performed with the system in either the vertical or horizontal position. 2. Before performing any of the installation procedures in this chapter, read the following notices. For the system unit in which you are about to install an option: v The ac power interface connector is considered the main power disconnect device. v This system unit has redundant power supply capabilities, meaning that it has the ability to have two power supplies running simultaneously in the same system unit. When instructed to disconnect the power source, ensure that all power cables have been unplugged. 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. D05 CAUTION: This product is equipped with a three-wire power cable and plug for the user's safety. Use this power cable with a properly grounded electrical outlet to avoid electrical shock. C01 CAUTION: This unit has more than one power supply cord. To reduce the risk of electrical shock, disconnect two power supply cords before servicing. C21 23

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Chapter 3. Installing Options
This chapter provides procedures for installing options in the Model 275 system unit.
Notes:
1.
Installing options in the Model 275 can be performed with the system in either the vertical or horizontal
position.
2.
Before performing any of the installation procedures in this chapter, read the following notices.
For the system unit in which you are about to install an option:
v
The ac power interface connector is considered the main power disconnect device.
v
This system unit has redundant power supply capabilities, meaning that it has the ability to have two
power supplies running simultaneously in the same system unit. When instructed to disconnect the
power source, ensure that all power cables have been unplugged.
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.
D05
CAUTION:
This product is equipped with a three-wire power cable and plug for the user’s safety. Use this
power cable with a properly grounded electrical outlet to avoid electrical shock.
C01
CAUTION:
This unit has more than one power supply cord. To reduce the risk of electrical shock,
disconnect two power supply cords before servicing.
C21
23