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Table 4

Front-Panel LEDs (continued)

LED

Color

ACT

Green

COL

Yellow

SLOTØ

PORTØ

Green

PORT1

–

Green

78-6169-02

Cards

Supported

LED Meaning

–

Blinks when there is network activity on the Ethernet port.

–

Blinks when there are packet collisions on the local

Ethernet network.

ISDN

On when the first ISDN B channel is connected.

Serial and

Blinks when data is being sent to or received from the port.

CSU/DSU

2-port serial

VIC-2E&M

VIC-2FXO

VIC-2FXS

Serial and

Off.

CSU/DSU

ISDN

On when the first ISDN B channel is connected.

2-port serial

Blinks when data is being sent to or received from the port.

VIC-2E&M

VIC-2FXO

VIC-2FXS

Cisco 1750 Router Hardware Installation Guide

Front-Panel LEDs

vii