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Cisco Catalyst 4900M Switch Installation Guide
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. Table 1-3
lists the front panel LEDS and their meanings.
Figure 1-3Chassis Front Panel LEDs
1PS1 LED 4System LED
2PS2 LED 510Gig port LEDs
3Fan LED
Table 1-3Front Pane l LED De scrip tion s
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 console port is in link-down state or not
connected
NoteThere are no blinking, red, or yellow states for this port
MGT
(rear)
•Green—10/100/1000BASE-T Management port is in link-up
state.
•Off—10/100/1000BASE-T Management port is in link-down
state or not connected.
NoteThere 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 self-test indicates faulty port.
•Off—No signal detected or link configuration failure.
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