Specifications

Safety Information
Safety-14
 Turn off the power before installing or removing a power supply module.
z Before installing or removing a power supply module, turn off its power. Installing or removing the
module with the power supply module turned on causes a (switch) failure. The following label is affixed
to the EPU.

Turn off the power of the power supply modules before turning on the main power
switch of an EPU.
z Before turning on the main power switch of an EPU, turn off the installed power supply modules.

Do not turn off the main power switch of an EPU if the standby power supply is used
for the switch.
z Turning off the main power switch of an EPU stops the supply of all standby power to the switch. Do not
turn off the main power switch if a standby power supply is being used for the switch.

Handle memory cards and dummy memory cards carefully.
z When installing a memory card and a dummy memory card, do not force the card. In addition, when
removing the card, do not forcibly pull it if it is locked in place. Doing so could break the memory card
slot connector.
z When moving the switch, remove memory cards and dummy cards. If a card is subjected to excessive
force when the switch is moved, the memory card slot connector could break.

While the ACC LED is on, do not remove a memory card or turn off the power.
z When the ACC LED on the front panel of the switch is on, a memory card is being accessed. While a
memory card is being accessed, do not remove the memory card or turn off the power. Doing so could
damage the memory card.
In addition, some commands require a certain amount of time after being entered for the access to be
completed. Make sure the access is completed before removing a memory card or turning off the power.