Preventing Electrostatic Discharge; Installing And Removing A Modular Line Card; Handling A Modular Line Card - Cisco ASR 9000 Series Installation Manual
Aggregation services router ethernet line card
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Also See for ASR 9000 Series:
- Command reference manual (1138 pages) ,
- Routing configuration manual (702 pages) ,
- Reference manual (696 pages)
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Chapter 2
Installing Line Cards in the Cisco ASR 9000 Series Router
Preventing Electrostatic Discharge
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are
improperly handled, results in complete or intermittent failures. Electromagnetic interference (EMI)
shielding is an integral component of the line card. Cisco recommends using an ESD-preventive strap
whenever you are handling network equipment or one of its components.
The following are guidelines for preventing ESD damage:
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For safety, periodically check the resistance value of the ESD strap. The measurement should be between
Caution
1 and 10 megohms.
Required Tools and Equipment
You need the following tools and parts to remove and install modular line cards (MLCs) and modular
port adapters (MPAs):
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Installing and Removing a Modular Line Card
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Handling a Modular Line Card
Each modular line card (MLC) circuit board is mounted to a metal carrier and is sensitive to electrostatic
discharge (ESD) damage.
Always handle the MLC by the carrier edges and handle; never touch the its components or connector
Caution
pins
Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.
Connect the equipment end of the connection cord to an ESD connection socket on the router or to
bare metal on the chassis.
Handle line cards by the captive installation screws, the provided handle, ejector levers, or the line
card metal carrier only; avoid touching the board or connector pins.
Place removed line cards board-side-up on an antistatic surface or in a static shielding bag. If you
plan to return the component to the factory, immediately place it in a static shielding bag.
Avoid contact between the line cards and clothing. The wrist strap only protects the board from ESD
voltages on the body; ESD voltages on clothing can still cause damage.
Flat-blade or Phillips screwdriver
ESD-preventive wrist or ankle strap and instructions
Interface cables to connect the line card with another router or switch
Installing a Modular Line Card, page 2-17
Removing and Installing a Modular Line Card, page 2-14
(Figure
2-8).
Cisco ASR 9000 Series Aggregation Services Router Ethernet Line Card Installation Guide
Installing and Removing a Modular Line Card
2-13
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Troubleshooting
