Lenovo HR650X V2 User Manual page 81

S001
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 electrical outlet.
• Connect any equipment that will be attached to this product to properly wired outlets .
• 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 power cords, telecommunications systems, networks, and modems
before you open the device covers, unless instructed otherwise in the installation and
configuration procedures.
• Connect and disconnect cables as described in the following table when installing, moving, or
opening covers on this product or attached devices.
To Connect:
1. Turn everything OFF.
2. Attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
Safety precautions on DC power supplies
CAUTION:
240 V DC input (input range: 180-300 V) is supported in Chinese Mainland ONLY.
Perform the following steps to safely remove the power cord of one 240 V DC power supply unit. Otherwise,
there can be data loss and other damages to the equipment. Damages and losses resulting from inappropriate
operations will not be covered by the manufacturer's warranty.
1. Turn off the server.
2. Disconnect the power cord from the power source.
3. Disconnect the power cord from the power supply unit.
To Disconnect:
1. Turn everything OFF.
2. Remove power cords from outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
.
Chapter 4 Hardware replacement procedures
73