Instruction manual

MA-2 AX66S-H001X
15
5. Adding and Replacing Optional Modules
5.5 Adding or replacing a control and switching unit
The explanation, notes, and figures in (2) Installing a control and switching unit have been corrected as
follows.
Correction:
(2) Installing a control and switching unit
A control and switching unit can be installed while the Switch is on.
Note, however, that the procedure varies depending on whether the Switch is on or off.
In addition, the procedure also varies depending on whether the installed control and switching unit is the
active system or the standby system. Install the unit while referring to the following figure.
When replacing both units with the Switch turned off in a dual configuration, first install
the active system and restore the operating information (steps 1 to 6-1), and then install
the standby system and restore the operating information (steps 1 to 6-2).
For details about steps 1 to 6 in the figure, see the description of the steps that follow
Figure 5-23 Installation overview.