Cisco 1721 User Manual download pdf (Page 38)

Chapter 2 Installation

Installing WICs

2-6

Cisco 1721 Router Hardware Installation Guide

78-13834-02

Installing the Cards

Follow these steps to install the card in a Cisco 1721 router:

Step 1 Make sure that the power switch is set to the STANDBY position ( ) and that

the power cable is not connected to the power socket on the rear panel.

Caution Power must be removed from the system prior to installing or removing WICs

to avoid damaging them. When WICs are pushed into or pulled out of a router

that is powered up, there is a very good chance that they could be damaged

electrically and will no longer function.

Step 2 Loosen the thumbscrews on the WIC slot cover on the rear panel, as shown in

Figure 2-2, and then remove the slot cover. You should be able to loosen the

screws using your fingers; however, if the screws are very tight, you might need

to use a Phillips screwdriver.

Figure 2-2 Removing the WIC Slot Cover

65526

FDX

LINK100

WIC0OK

WIC1OK

MOD OK

CONSOLE

AUX

Model

Cisco 1721

10/100 ETHERNET

+5, +12, -12 VDC

WAN interface card slot cover

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Cisco 1721 User Manual Page 38