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Replacing I/O Modules 71
Replacing I/O Modules To replace an I/O module, you need:
■ An antistatic wrist strap
■ A Screwdriver
To remove a module:
1 Remove all the cables from the module to be removed.
2 Loosen the captive screws.
3 Hold the ejector levers on the module with both hands, and press them toward
both sides to separate the connectors of the module from the motherboard.
4 Gently slide the module along the guides and out of the slot.
5 Put the removed module into the package that contained the replacement
module.
Replace the blanking plate on the chassis if you do not install a new module in the
place where the old one was removed.
To install a replacement module:
1 With both hands, hold the ejector levers on the module that will be installed.
2 Align the module with the guides in the chassis and slide it into the slot gently
until you feel the positioning pin on the handle bar touch the hole in the chassis.
3 Press the ejector levers inward and seat the pin on the handle bar into the
positioning hole in the chassis.
4 Fasten the captive screws to fix the module.
Replacing the Fan
Assembly
You can hot-swap fan assemblies in the Switch 7750.
To replace a fan assembly, you need:
■ An antistatic wrist strap
■ A Screwdriver
WARNING: To avoid injury, do not touch any naked wire, terminal, or any part of
the product labeled Dangerous Voltage. Always wear the antistatic wrist strap
when replacing the fan module.
To replace a fan assembly:
1 Put on the antistatic wrist strap.
2 With both hands, pull out the ejector levers on the fan assembly to separate the
fan assembly connector from the backplane.
3 Pull the fan gently along the guides of the slot to remove it.
4 With both hands, pull out the ejector levers of the fan that will be installed. Align
it with the guides in the chassis and slide it gently into the slot until you feel the
positioning pin on the handle bar touch the hole in the chassis.
5 Press the ejector levers inward and seat the pin on the handle bar into the
positioning hole in the chassis.