44
Replacement procedures
CAUTION:
When replacing FRUs when the switch is running, be aware of electrical safety.
The switch uses a modular, hot-swappable architecture, and supports FRUs. You can replace any of
FRUs when the switch is running.
Replacing a power supply
WARNING!
•
Power supply replacement involves removal and installation of power supplies and power cables.
Strictly follow the procedures shown in
Figure 34
and
Figure 35
to replace a power supply to avoid
device or bodily injury.
•
Power supplies with different models cannot be installed on the same switch. When you use multiple
power supplies to supply power, and the power supplies to be replaced are of different models,
power off the switch before replacement to avoid damage to the switch.
•
The power supply may be of high temperature. Remove it with caution.
•
Make sure each power supply has a separate circuit breaker. Before replacing a power supply, turn
off the circuit breaker on the power supply.
•
After removing the power supply, if you do not install a new power supply, install a blank panel.
Figure 32
Power supply removal flow
Figure 33
Power supply installation flow
To replace a power supply:
1.
Prepare an antistatic mat to place the removed power supply.
2.
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well
grounded. For more information, see the chapter “
Installing modules
.”
3.
Switch off the circuit breaker on the power supply.
4.
Remove the cable ties from the power cable, and remove the power cable from the power supply.
5.
Use a Philips screwdriver to loosen the captive screw on the power supply, and then grasp the
captive screw between your thumb and index finger to carefully pull out the handle on the power
supply, as shown in callout 1 on
Figure 36
.
6.
Holding the power supply handle with one hand and supporting the bottom of the power supply
with the other, gently pull the power supply out, as shown in callout 2 on
Figure 36
.
7.
Put the removed power supply on the antistatic mat.
