Installing Power Supply Units and Connecting Power
For the ratings and power input requirements of each power supply unit, see or the data sheet
for the power supply at www.extremenetworks.com.
Warning
Be sure to satisfy the requirements listed in this section when
you install Extreme Networks power supplies or connect power.
When you install any power supply:
- Do not use excessive force when you insert a power supply
into the bay.
- Do not attempt to open the power supply enclosure for any
reason; the power supply does not contain user-serviceable parts. In the event
of failure, return the defective power supply to Extreme Networks for repair or
replacement.
- Do not put your hand into an open power supply bay when a
power supply is not present.
- Before you work on equipment that is connected to power
lines, remove all jewelry, including watches. Metal objects heat up when they
are connected to power and ground and can cause serious burns or weld the metal
object to the terminals.
- An electrical arc can occur when you connect or disconnect
the power with power applied. This could cause an explosion in hazardous area
installations. Be sure that power is removed from the device.
- When you install or replace equipment, always make the
ground connection first and disconnect the ground connection last.
When you install AC power supplies:
- For switches with field-replaceable power supplies, do not
connect the power supply to an electrical source when the power supply is not
installed in the switch; doing so would expose a hazardous energy and poses a
potential shock and fire hazard.
- Plug power supplies only into properly grounded electrical
outlets to help prevent electrical shock and to comply with international safety
standards.
- Use only power cords that are certified for use within the
country of use. Do not attempt to modify AC power cords.
- Make sure that the voltage and frequency of your power
outlet match the system electrical ratings for the equipment. The building
and/or power source must provide overload protection.
- Use a surge suppressor, line conditioner, or uninterruptible
power supply to protect the system from momentary increases or decreases in
electrical power.
- When multiple power supplies are used with a system, connect
each power supply to a different, independent overcurrent protection device,
such as a circuit breaker. If a single power source fails, it will affect only
that power supply to which it is connected. See the data sheet of the power
supply for proper sizing of the circuit breaker.
- Extreme Networks AC power supplies do not have switches for
turning the unit on and off. Remove all wall plugs from the electrical outlets
to disconnect the power. Make sure that these connections are easily
accessible.
When you install DC power supplies or connect DC power:
- Making the connection to your
facility DC source voltage must be performed by a qualified, licensed
electrician.
- Extreme Networks DC power
supplies do not have switches for turning the unit on and off. Make sure that
the DC circuit is de-energized before connecting or disconnecting the DC power
cord at the DC input power socket.
- Do not connect a DC power supply
to the DC source power when the power supply is not installed in the chassis;
doing so would expose a hazardous energy and poses a potential shock and fire
hazard.
- Connect the system or power
supply only to a DC power source that complies with the safety extra-low voltage
(SELV) requirements in IEC 60950-based safety standards.
- DC-powered equipment must be
installed in a restricted-access area to ensure that only trained and qualified
service personnel have access to the equipment. A restricted-access area can be
entered only through the use of a special tool, lock and key, or other means of
security.
Note
Because building codes
vary worldwide, consult an electrical contractor to ensure proper equipment
grounding and power distribution for your specific installation and country.
Warning
Extreme Networks power supplies do not have switches for turning
the unit on and off. Disconnect all power cords to remove power from the device.
Make sure that these connections are easily accessible.
Extreme Networks alimentations n'ont pas de contact pour mettre
l'appareil sous et hors tension. Débranchez tous les cordons d'alimentation pour
couper l'alimentation de l'appareil. Assurez-vous que ces connexions sont facilement
accessibles.