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Cisco Catalyst 4900M Switch Installation 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. Ta b 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
Ta b le 1-3 Fro nt Panel LED Description 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 no t
connected
Note There 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.
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 self-test indicates faulty port.
• Off—No signal detected or link configuration failure.
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