Lenovo System x3630 M4, Installation And Service Manual

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Removing a hot-swap dc power supply
Use this information to remove a hot-swap dc power supply.
When you remove or install a hot-swap dc power supply, observe the following precautions.
Statement 29
CAUTION: This equipment is designed to permit the connection of the earthed conductor of the dc supply
circuit to the earthing conductor at the equipment.
This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the
earthing conductor at the equipment. If this connection is made, all of the following conditions must be met:
• This equipment shall be connected directly to the dc supply system earthing electrode conductor or to a
bonding jumper from an earthing terminal bar or bus to which the dc supply system earthing electrode
conductor is connected.
• This equipment shall be located in the same immediate area (such as, adjacent cabinets) as any other
equipment that has a connection between the earthed conductor of the same dc supply circuit and the
earthing conductor, and also the point of earthing of the dc system. The dc system shall not be earthed
elsewhere.
• The dc supply source shall be located within the same premises as this equipment.
• Switching or disconnecting devices shall not be in the earthed circuit conductor between the dc source
and the point of connection of the earthing electrode conductor.
Statement 31
DANGER
Electrical current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
• Connect all power cords to a properly wired and grounded power source.
• Connect to properly wired power sources any equipment that will be attached to this product.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Disconnect the attached ac power cords, dc power sources, network connections,
telecommunications systems, and serial cables before you open the device covers, unless you
are instructed otherwise in the installation and configuration procedures.
• Connect and disconnect cables as described in the following table when you install, move, or
open covers on this product or attached devices.
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Lenovo System x3630 M4 Installation and Service Guide