User's Manual

1-5

Cisco Catalyst 490 0M Switch Ins talla tion Guid e

78-18350-02

Chapter 1 Product Overview

Catalyst 4900M Switch Chassis

Front Panel LEDs

A set of LEDS on the chassis front panel (see Figure 1-3) provide visual status for the switch. Tab l e 1-3

lists the front panel LEDS and their meanings.

Figure 1-3 Chassis Front Panel LEDs

1 PS1 LED 4 System LED

2 PS2 LED 5 10Gig port LEDs

3 Fan LED

Tabl e 1-3 Front Pan el LED D esc ripti ons

LED Description

System

(front)

The system LED indicates the operating state of the Catalyst 4900M

switch. At startup, the Catalyst 4900M performs a series of

diagnostic tests:

• Green—All tests pass

• Red—A test other than an individual port test fails

• Off—System is in rommon mode or a power supply has failed

Switch is disabled

CON

Console port

(rear)

• Green—10/100 BASE-T console port is in link-up state

• Off—10/100 BASE-T con sole por t is i n link- down stat e or no t

connected

Note There are no blinking, red, or yellow states for this port

MGT

(rear)

• Green—10/100/1000BASE-T Ma nagement port is in link- up

state.

• Off—10/100/1000BASE-T Ma nagement port is in link-down

state or not connected.

Note There are no blinking, red, or yellow states for this port.

Port

(front)

• Green—Port is operational.

• Yellow—Port is disabled by user.

• Flashing yellow—Power-on sel f-test indicates faulty port.

• Off—No signal detected or link co nfiguration failure.

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