■
You are responsible for installing a main power disconnect for the entire rack
unit. This main disconnect must be readily accessible, and it must be labeled
as controlling power to the entire unit.
■
A proper safety ground must be implemented for the rack and each piece of
equipment that is installed in it. You thus avoid the risk of a potential electric
shock.
■
The temperature in the room where the devices operate must not be less than
5 °C (41 °F) or more than 40 °C (104 °F). Extreme fluctuations in temperature
can cause problems in the equipment.
■
The equipment rack must provide sufficient airflow to the front of the appliance
to maintain proper cooling. The rack must include ventilation sufficient to exhaust
a maximum of 2550 BTUs per hour for the appliance. BTU is British Thermal
Units.
The rack should include ventilation sufficient enough to exhaust a maximum of
1270 BTUs per hour for the storage shelf.
See
“Electrostatic discharge (ESD)”
on page 52.
Power and electrical warnings
Refer to the following list of warnings to avoid power and electrical hazards:
■
The power button, DOES NOT completely turn off the AC power. A 5V standby
power is active whenever the appliance is plugged in.
■
To remove power from the appliance, you must completely unplug all the AC
power cords from the wall outlets.
■
The appliance uses two AC power cords. Make sure all AC power cords are
unplugged. Make sure the AC power cords are unplugged before you open the
chassis, or add or remove any non-hot-swappable components.
■
Do not attempt to modify or use an AC power cord if it is not the exact type
required. A separate AC cord is required for each of the two appliance power
supplies.
■
The power supply in this product contains no serviceable parts. Do not open
the power supply. Hazardous voltage, current, and energy levels are present
inside the power supply. Return to manufacturer for servicing.
■
When replacing a hot-swappable power supply, unplug the power cord to the
power supply being replaced before removing it from the device.
■
Before you open the appliance, take precautions to avoid risk of electric shock.
Turn off the appliance and disconnect the power cords, any telecommunications
systems, networks, and modems that are attached to the appliance.
47
Detailed safety and maintenance information
Power and electrical warnings
