Electrical Damage Protection Guide

Table Of Contents

Electrical Damage Protection Guide

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Additional Information

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Electrical Damage Protection Guide

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Protect your Cisco equipment from electrical damage.

Your Cisco WAN interface card can be damaged by excessive voltages on the interface cabling.

Excessive voltages can be caused by:

•Power surges

•Power dropouts

•Ground loop currents

•Lightning strikes

•Nearby AC wiring

The following precautions reduce the possibility of excessive voltages from interface cabling:

•Use end-to-end shielded cables.

•Keep cable runs as short as possible.

•Route cables away from AC wiring.

•Do not run serial cables between buildings.

•Install surge suppressors or optical isolators on serial cables. If a surge suppressor has a ground wire, you must connect the ground wire to a good earth ground.

The following precautions also reduce the possibility of electrical damage:

•Electrical outlets must be properly grounded. This is a requirement.

•Use an uninterruptible power supply (UPS) to avoid unnecessary shutdowns and restarts.

For Additional Information

See the installation procedure that accompanied the equipment. Installation information is also available online at Cisco.com and on the Documentation CD that accompanied your router.

To print a document in its original page format, access the online document, and click on the PDF icon.

Ordering Documentation

Registered Cisco.com Users

If you are a registered Cisco.com user (Cisco direct customer, you can order documentation as follows:

•Printed copies of selected Cisco product documents are available from the Networking Products MarketPlace at the following URL:

http://www.cisco.com/cgi-bin/order/order_root.pl

•Part numbers for spare documentation are available from your local account representative or by selecting the documentation product family after choosing a Price List at:

http://www.cisco.com/cgi-bin/order/pricing_root.pl?service=ViewByFamily1

•The Documentation CD (product number DOC-CONDOCCD=) is available through the online Subscription Store at the following URL:

http://www.cisco.com/cgi-bin/order/order_root.pl

Nonregistered Cisco.com Users

If you are not a registered Cisco.com user, you can order printed copies of Cisco product documentation through a local account representative by calling Cisco Worldwide Sales at 800 553-NETS(6387).

Additional Information

If you ordered printed documentation with your product order, it is shipped separately from your product order.

Documentation CD

Your product shipped with a Cisco Documentation CD, which is updated monthly and may be more current than the printed documentation. You can sign up to receive the monthly Documentation CD (product number DOC-CONDOCCD=) at the following URL:

•http://www.cisco.com/cgi-bin/order/order_root.pl

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at the following URL:

•http://www.cisco.com

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