Extreme Networks BlackDiamond 8800 Series - Manual (Page 156)

Safety Information
BlackDiamond 8800 Series Switches Hardware Installation Guide 156
WARNING!
Be sure that the requirements listed in this section are satisfied when installing all Extreme Networks power
supplies.
When you install power supplies:
● Plug power supplies only into properly grounded electrical outlets to help prevent electrical shock
and 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.
● The wall outlet must be installed near the equipment and be easily accessible for quick disconnect.
● Make sure 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 inserting a hot-swappable power supply into the bay, do not use excessive force.
● If multiple power supplies are used in a switch, connect each power supply to a different,
independent power source. If a single power source fails, it will affect only that power supply to
which it is connected. If all the power supplies on a single switch are connected to the same power
source, the entire switch is vulnerable to a power failure.
WARNING!
Extreme Networks DC PSUs 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 socket on the Extreme
Networks DC PSU.
Wiring the DC PSU DC power cord to your facility DC source voltage must be performed by a qualified, licensed
electrician.
Do not connect the power supply to an electrical outlet when the power supply is outside the chassis; doing so
would expose a hazardous energy and poses a potential shock and fire hazard.
Do not put your hand into an open power supply bay when a power supply is not present. Empty power supply bays
require a cover plate at all times.
Maintenance Safety
When you perform maintenance procedures on Extreme Networks equipment, follow these
recommendations:
● Use only original accessories or components approved for use with this system. Failure to follow
these instructions may damage the equipment or violate required safety and EMC regulations.
● The chassis cover should only be removed by Extreme Networks personnel. There are no customer
serviceable components in this system. Repairs to the system must be performed by an Extreme
Networks factory service technician.
● In systems that have power-on buttons, the power on button may not turn off all system power. To
remove power from the system, you must unplug all power cords from wall outlets. The power cord
is the disconnect device to the main power source.