Instruction manual

4. Installing a Switch
131
(2) Turning off the power
Step 1
Make sure the software is not being updated (the ppupdate command is not being
executed) and the memory card is not being accessed.
Figure 4-59 Checking the LED
(1) Control and switching unit
(2) STATUS LED
(3) ACC LED
CAUTION
When the ppupdate command is executed, the Switch restarts
automatically.
Do not turn off the Switch until it is restarted (until the STATUS LED on
the control and switching unit changes from blinking green to constant
green). Failure to do so could result in a Switch failure.
CAUTION
If the ACC LED is lit, the 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 might damage the memory card.
In addition, some commands require a certain amount of time after
being entered to finish accessing the card. Make sure that the memory
card is no longer being accessed before removing the card or turning
off the power.
Step 2
Set all power switches on the Switch to OFF.