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Replacing removable components
CAUTION:
• To avoid device damage or bodily injury, strictly follow the procedures provided in this chapter for
component replacement.
• Long-time exposure to strong air flow might cause discomfort. To avoid this hazard, do not stand
close to the air outlet vents while the switch is operating. If you must be next to the switch on the
air outlet vent side for an extended period, avoid the air flow or take other protective measures.
The gateway uses a modular architecture. You can replace the removable components on it.
Replacing a module
CAUTION:
• If you are not to install a new module in a slot after removing the old one, install a filler panel in the
slot for adequate heat dissipation and dust prevention.
• Before removing a module, first remove the cables from it.
Replacing a SEM
Replacing a SEM for an M9000-AI-E8 gateway
1.
Prepare an antistatic mat for placing the removed supervisor engine module (SEM).
2.
Wear an ESD wrist strap, and make sure it makes good skin contact and is reliably grounded.
3.
Use a Phillips screwdriver to loosen the captive screw on the left of the module.
4.
Pivot up the handle of the module and then pull the module slowly out of the slot.
5.
Place the removed module on the antistatic mat.
6.
Install a new SEM. For the installation procedure, see "Installing the gateway."
Figure 1 Removing a SEM from an M9000-AI-E8 gateway
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