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4
Hardware replacement
CAUTION:
Wear an ESD wrist strap or ESD gloves for hardware maintenance. They are not provided with the
firewall. Prepare them yourself.
Replacing a power supply
CAUTION:
Before you replace a power supply, power off the firewall and remove the power cord.
The replacement procedure is the same for an AC power supply and a DC power supply. This
section takes an AC power supply as an example.
To replace a power supply:
1.
Remove the releasable cable tie from the power cord and then remove the power cord
connector from the power supply.
2.
Hold the power supply handle with one hand, press the latch towards the handle, and then pull
the power supply part way out of the slot. Supporting the power supply bottom with one hand,
slowly pull the power supply out of the slot along the guide rails with the other.
3.
Put the removed power supply in an antistatic bag or on the workbench.
4.
Install a new power supply. For the installation procedure, see "
If you are not to install a new power supply, install a filler panel in the slot to ensure good
ventilation in the firewall.
Figure4-1 Removing a power supply
Replacing an interface module
CAUTION:
•
Interface modules are not hot swappable. Power off the firewall before you replace an interface
module.
•
To install two interface modules, use the upper interface module slots as a best practice. If you
have installed an interface module in a lower slot, you must press down the ejector levers of the
interface module while inserting it into an upper slot.
