Cisco 1721 User Manual download pdf (Page 27)

1-5

Cisco 1721 Router Hardware Installation Guide

78-13834-02

Chapter 1 Cisco 1721 Router Overview

Front Panel LEDs

Use the back panel LEDs during router installation to confirm that you have

correctly connected all the cables to the router.

Front Panel LEDs

Use the router front panel LEDs to determine network activity and status on the

Ethernet port and on the WIC ports. The front panel LEDs are illustrated in

Figure 1-3 and described in Table 1-4.

WIC slot 0

(WIC0)

No label Supports one Cisco WIC. For detailed information, refer

to the Cisco WAN Interface Cards Hardware Installation

Guide, which comes with every card.

WIC slot 1

(WIC1)

No label Supports one Cisco WIC. For detailed information, refer

to the Cisco WAN Interface Cards Hardware Installation

Guide, which comes with every card.

Table 1-2 Back Panel Connectors (continued)

Connector/Slot Label/Color Description

Table 1-3 Back Panel LEDs

LED Label Color Description

WIC0 OK Green On when a WIC is correctly inserted in the card slot.

FDX Green On solid—Ethernet port is operating in full-duplex mode.

Off—Ethernet port is operating in half-duplex mode.

100 Green On solid—Ethernet port is operating at 100 Mbps.

Off—Ethernet port is operating at 10 Mbps.

LINK Green On when the Ethernet link is up.

MOD OK Green On when the VPN hardware encryption module is installed and

recognized by the IOS.

WIC1 OK Green On when a WIC is correctly inserted in the card slot.

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Cisco 1721 User Manual Page 27