IBM 5000 - Manual (Page 51)

Electrical Safety
Electrical Safety
10
CAUTION:
Electrical current from power, telephone, and communication cables
can be hazardous. To avoid personal injury or equipment damage,
disconnect the attached power cords, telecommunications systems,
networks, and modems before you open the server covers, unless
instructed otherwise in the installation and configuration procedures.
For your safety, always do the following before removing the cover:
1. Turn off the server and any attached devices, such as printers, monitors, and
external drives.
Note: If you are in the United Kingdom and have a modem or fax machine
attached to your server, you must disconnect the telephone line from
the server
before unplugging any power cords (also known as power
cables). When reassembling your server, you must reconnect the
telephone line
after you plug in the power cords.
2. Unplug all the power cords from electrical outlets.
3. Disconnect all communication cables from external receptacles.
4. Disconnect all cables and power cords from the back of the server.
Note: Reconnect the cables or power cords only after you reassemble the
server and put the cover back on.
9
CAUTION:
Never remove the cover on a power supply or any part (power
backplane and AC box) that has the following label attached.
Hazardous voltage, current, and energy levels are present inside the
power supplies, power backplane, and AC box. There are no
serviceable parts inside the power supplies, power backplane, or AC
box. If you suspect a problem with one of these parts, contact an IBM
service technician.
Chapter 4. Installing Options 41