Installing Power Supply Units and
Connecting Power
Be sure to satisfy the requirements listed in this section when you install Extreme
Networks power supplies or connect power.
Check the ratings and power requirements of each power supply unit or router.
For more information, see Technical Specifications or the data sheet for the equipment at: http://www.extremenetworks.com.
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. An empty power supply bay requires a cover at all times.
- 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 equipment with field-replaceable power supplies, do not connect the
power supply to an electrical source when the power supply is not installed in
the equipment; 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 over-current 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 outlet 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 and DC-powered devices 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
power input 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
Building codes vary worldwide; therefore, Extreme
Networks strongly recommends that you consult an electrical contractor to ensure proper
equipment grounding and power distribution for your specific installation and
country.
Print
this page
Email this topic
Feedback
View PDF
Download EPUB