Cisco 6160 Note sull'installazione e la sostituzione - Pagina 9

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Cisco 6160 Note sull'installazione e la sostituzione
General Maintenance Guidelines
This section covers the following topics:
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Installation and Replacement Suggestions
The following examples list recommended installation and replacement practices for the PEM.
Any module that is only partially connected to the backplane can disrupt system operation.
Caution
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Hot Swapping Modules
The PEM is not hot swappable if there is only one PEM installed in the chassis. If you remove the only
operating PEM from the chassis, power down the system before you begin. Removing the only operating
PEM from the chassis will interrupt service for the entire system until you replace the PEM.
The PEM is hot swappable if there is a secondary PEM installed in the chassis. If the active PEM is
removed, the standby PEM becomes the active PEM and the system continues to operate.
Only a trained technician should install and remove the PEM.
Caution

Preventing Electrostatic Discharge Damage

Proper ESD protection is required whenever you handle Cisco equipment. ESD damage, which can occur
when electronic cards or components are improperly handled, results in complete or intermittent
failures. Use an antistatic strap when you handle any card or component.
Follow these guidelines to prevent ESD damage:
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OL-2181-01
Installation and Replacement Suggestions, page 9
Hot Swapping Modules, page 9
Do not force the module into its slot. This action can damage the pins on the backplane if they are
not aligned properly with the module.
Ensure that the module is straight and not at an angle when you install it in the slot. Installing the
module at an angle can damage the module. Use the guide rails to install the module correctly.
Firmly press on the module to ensure that the connectors mate with the chassis correctly.
Always use an ESD ankle or wrist strap and ensure that the wrist strap makes good skin contact.
Connect the equipment end of the strap to the ESD jack on the front of the chassis.
When you install a component, use available ejector levers or captive installation screws to properly
seat the bus connectors in the backplane or midplane. These devices prevent accidental removal,
provide proper grounding for the system, and help ensure that bus connectors are properly seated.
When you remove a component, use available ejector levers or captive installation screws to release
the bus connectors from the backplane or midplane.
General Safety Precautions and Maintenance Guidelines
General Maintenance Guidelines
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