Cisco CISCO1721 Installation Guide download pdf (Page 37)

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Cisco 1721 Router Hardware Installation Guide

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Chapter 2 Installation

Installing WICs

Caution Do not connect a WAN cable to the card until you have completed the

installation procedure.

WIC Installation

This section describes how to install WICs in the router.

Installing the Cards in Correct Sequence

The Cisco 1721 router discovers interfaces on WICs installed in the WIC0 slot

before it discovers those installed in the WIC1 slot. This can affect your router

configuration. This section describes how to ensure that your existing router

configuration is not affected when you install WICs.

If you are installing a WIC in the router for the first time, install the card in the

WIC0 slot to ensure that your software configuration will not be affected if you

install a second card at a later time.

If you are installing a second WIC in a Cisco 1721 that has a card installed in the

WIC1 slot, follow this general procedure to prevent having to reconfigure your

router:

Caution Read the instructions in the following section, “Installing the Cards,” before

you install the cards.

Step 1 Remove the installed card from the WIC1 slot.

Step 2 Reinstall the card (removed in Step 1) in the WIC0 slot.

Step 3 Install the new card in the WIC1 slot.

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Cisco CISCO1721 Installation Guide Page 37