Cisco Systems C220 2 Rear Panel LEDs and Buttons, Rear Panel LEDs, Definitions of States

Chapter 3 Maintaining the Server

Status LEDs and Buttons

Rear Panel LEDs and Buttons

Figure 3-2shows the rear panel LEDs and buttons. Table 3-2defines the LED states.

Figure 3-2 Rear Panel LEDs and Buttons

1

PSU1	PSU2				331692
2	3	4	5	6	7

		1	Power supply fault LED	5	1-Gb Ethernet link speed LED
	2		Power supply AC OK LED	6	1-Gb Ethernet link status LED
	3		1-Gb Ethernet dedicated management link	7	Rear Identification button/LED
			status LED
	4		1-Gb Ethernet dedicated management link		–
			speed LED
Table 3-2	Rear Panel LEDs, Definitions of States
LED Name			State
Power supply fault			• Off—The power supply is operating normally.

•Amber, blinking—An event warning threshold has been reached, but the power supply continues to operate.

•Amber, solid—A critical fault threshold has been reached, causing the power supply to shut down (for example, a fan failure or an over-temperature condition).

Power supply AC OK • Off—There is no AC power to the power supply.

•Green, blinking—AC power OK, DC output not enabled.

•Green, solid—AC power OK, DC outputs OK.

1-Gb Ethernet dedicated	•	Off—link speed is 10 Mbps.
management link speed	•	Amber—link speed is 100 Mbps.

•Green—link speed is 1 Gbps.

1-Gb Ethernet dedicated	•	Off—No link is present.
management link status	•	Green—Link is active.

•Green, blinking—Traffic is present on the active link.

Cisco UCS C220 Server Installation and Service Guide

3-4 OL-25760-01