follow these steps to install an ac-input power supply:
step 1 make sure that the power supply you are installing is not plugged in to a power outlet and that the power cord is not connected to the power supply.
step 2 remove the two phillips-head screws from the power supply filler plate (if a filler plate is present).
step 3 remove the power supply filler plate (if one is present) and set it aside.
use both hands to grasp a power supply.
step 4 grasp the power supply handle with one hand. place your other hand underneath to support the bottom of the power supply, as shown earlier in figure 4-8.
step 5 slide the power supply all the way into the power supply bay.
step 6 using a screwdriver, tighten the two captive installation screws (see figure 4-1) on the front panel of the ac-input power supply.
step 7 make sure the power supply power switch is in the off position (o).
step 8 before you connect the power supply to a power source, ensure that all site power and grounding requirements described in the site preparation and safety guide have been met.
step 9 plug the power cord into the power supply (see figure 4-9).
step 10 connect the other end of the power cord to an ac-power input source.
in a system with multiple power supplies, connect each power supply to a separate ac power source. in the event of a power source failure, if the second source is still available, it can maintain maximum overcurrent protection for each power connection.
step 11 press the power switch down to the on (|) position (see figure 4-10).
step 12 verify power supply operation by checking the power supply’s front-panel leds. you should see the following:
1 the led labeled good is green.
2 the led labeled fail is not lit.
3 the led labeled fan ok is green.
step 13 check the power supply and system status from the system console by entering the show system command (catalyst operating system) or the show power command (cisco ios). for more information on this command, refer to the command reference publication for your switch.
step 14 if the leds or the show system command (catalyst operating system) or the show power command (cisco ios) output indicate a power problem or other system problem, see chapter 5, “troubleshooting,” for more information.