5. Adding and Replacing Optional Modules
Figure 5-11 Installing a power supply unit (2)
(1) Screws
NOTE
Step 3
Connect a power cable to the power supply unit. (For details about how to connect a
power cable, see 4.6 Connecting and disconnecting the power cable.)
5.4.2 Adding or replacing a DC power supply unit
(1) Removing a DC power supply unit
NOTE
Step 1
Set the circuit breaker of the power supply unit you are replacing to OFF.
154
Use a screwdriver to tighten the screws. Make sure the screws are
firmly tightened.
If the power supply is redundant, a DC power supply unit can be
removed while the Switch is on.
If the power supply is not redundant, turn off the Switch before
removing the DC power supply unit.