Instruction manual

5. Adding and Replacing Optional Modules
144
Figure 5-29 Checking the STATUS LED
(1) Basic switching unit
(2) STATUS LED
(3) ACTIVE LED
Step 2
Turn off the basic switching unit if the power is being supplied (execute the
Inactivate operation).
NOTE
For details about the Inactivate operation, see 11 Switch Management
in the Software Manual Configuration Guide Vol. 1.
NOTE
Note that immediately after the Inactivate operation is performed for
the basic switching unit in the active system, the ACTIVE LED might
be lit even if the STATUS LED is turned off.
While the ACTIVE LED is lit, the basic switching unit is running.
Before proceeding to step 3, you must wait until both the STATUS
LED and the ACTIVE LED are turned off.
Step 3
Loosen the screws of the basic switching unit.