Electrostatic Discharge Prevention - Cisco ASR 1001-X Installation Manual

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Chapter 7

Removing and Replacing FRUs from the Cisco ASR 1001-X Router

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Electrostatic Discharge Prevention

Electrostatic discharge (ESD) damages equipment and impairs electrical circuitry. ESD occurs when

printed circuit boards are improperly handled and results in complete or intermittent failures.

Each SPA circuit board is mounted to a metal carrier and is sensitive to ESD damage. A SPA consists of

a printed circuit board that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding,

connectors, and a handle are integral components of the carrier.

When the subslot is not in use, a SPA blank filler plate must fill the empty subslot to allow the router to

conform to EMI emission requirements and to allow proper airflow across the installed modules. If you

plan to install the SPA in the subslot that is not in use, you must first remove the SPA blank filler plate.

Figure 7-14

Although the metal carrier helps to protect the SPA from ESD, wear a preventive antistatic strap

whenever you handle the SPA. Ensure that the strap makes good skin contact and connect the strap's clip

to an unpainted chassis surface to safely channel unwanted ESD voltages to ground.

If no wrist strap is available, ground yourself by touching the metal part of the chassis.

The following are the guidelines for preventing ESD damage:

OL-32376-02

Number 2 Phillips or a 3/16-inch flat-blade screwdriver

SPA

Cables

Your own ESD-prevention equipment or the disposable grounding wrist strap included with all

upgrade kits, field-replaceable units (FRUs), and spares

Antistatic mat or surface, or static shielding bag

Handling the Cisco ASR 1001-X Router SPA

Printed circuit board

Metal carrier

GND

Printed circuit board

Removing and Replacing a Cisco ASR 1001-X Router SPA

Metal carrier

Cisco ASR 1001-X Router Hardware Installation Guide

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