H3C Technologies H3C SecPath M9000 Series - Manual (Page 46)

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Replacing FRUs
CAUTION:
•
When replacing FRUs while the gateway is running, be aware of electrical safety hazards.
• Strictly follow the replacement procedures provided in this chapter to avoid device damage or bodily
injury.
• Wear an ESD wrist strap during the replacement and make sure the wrist strap has a good skin contact
and is correctly grounded. For more information, see "Installing the gateway."
The gateway uses a modular, hot-swappable architecture, and supports field replaceable units (FRUs).
You can replace any of FRUs when the gateway is running.
Replacing a power module
WARNING!
•
Do not install AC and DC power modules on the same M9000 gateway.
• Power modules on an M9000 gateway must be the same model. When the new power modules and the
power modules operating on the gateway are not the same model, power off the gateway and remove
all power modules on the gateway before replacement.
• Provide a circuit breaker to the power line for each power module. Before replacing a power module,
turn off its circuit breaker.
• The power module may 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.
Figure 31 Power module removal flow
Figure 32 Power module installation flow
The replacement procedures for the AC and DC power modules are the same. To replace a power
module:
1. Prepare an antistatic mat to place the removed power module.
2. Turn off the circuit breaker.
3. 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.