H3C Technologies H3C S10500 Series Switches - Manual (Page 58)

50
Replacement procedures
CAUTION:
When replacing FRUs while the switch is running, be aware of electrical safety hazards.
The switch uses a modular, hot-swappable architecture, and supports field replaceable units (FRUs). You
can replace any of FRUs when the switch is running.
Replacing a power module
WARNING!
•
Strictly follow the procedures shown in Figure 38 and Figure 39 to replace a power module to avoid
device or bodily injury.
• Power modules on a 10500 switch must be the same model. When the replacement power modules and
the power modules that are operating correctly are not the same model, power off the switch and
remove all power modules before replacement.
• Add a circuit breaker to the power line for each power module. Before replacing a power module, turn
off its circuit breaker.
• The power module might be of high temperature. Remove it with caution.
• To install the removed power module to the chassis again, install it after the status LED on it is off.
• After removing the power module, if you do not install a new power module, install a blank filler panel.
Figure 38 Power module removal flow
Figure 39 Power module installation flow
To replace a power module:
1. Prepare an antistatic mat to place the removed power module.
2. Turn off the circuit breaker.
3. Wear an ESD wrist strap and make sure it makes good skin contact and is well grounded. For
more information, see "Installing modules."
4. Remove the power cable plug from the power module.
{
AC power cable: Remove the cable ties from the power cable, and remove the power cable
plug from the power module.
{
Remove the cable ties from the power cable, loosen the fastening screw on the power cable,
and remove the power cable plug from the power module.