Cisco Systems 8500, AIRCT8510300K9 -48V return Ground, -48V, Power input LED Power output LED Power error LED

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Cisco 8500 Series Wireless Controller Installation Guide

Chapter 1 Cisco 8500 Series Wireless Controller Installation Guide

Rear Panel

Figure 1-8 shows a detailed view of the LEDs on a DC power supply. This image applies to the

AIR-CT85DC-K9 model only.

Figure 1-8 Cisco 8500 Series Wireless Controller DC Power Supply LEDs (AIR-CT85DC-K9)

• Ethernet activity LEDs: When these LEDs are lit, they indicate that the controller is transmitting

to or receiving signals from the Ethernet LAN that is connected to the Ethernet port.

• Ethernet link LEDs: When these LEDs are lit, they indicate that there is an active link connection

on the 10BASE-T, 100BASE-TX, or 1000BASE-TX interface for the Ethernet port.

• AC power LED: Each hot-swap power supply has an AC power LED and a DC power LED. When

the AC power LED is lit, it indicates that sufficient power is coming into the power supply through

the power cord. During typical operation, both the AC and DC power LEDs are lit.

• IN OK power LED: Each hot-swap DC power supply has an IN OK power LED and an OUT OK

power LED. When the IN OK power LED is lit, it indicates that sufficient power is coming into the

power supply through the power cord. During typical operation, both the IN OK and OUT OK power

LEDs are lit.

• DC power LED: Each hot-swap power supply has a DC power LED and an AC power LED. When

the DC power LED is lit, it indicates that the power supply is supplying adequate DC power to the

system. During typical operation, both the AC and DC power LEDs are lit.

• OUT OK power LED: Each hot-swap DC power supply has an IN OK power LED and an OUT OK

power LED. When the OUT OK power LED is lit, it indicates that the power supply is supplying

adequate DC power to the system. During typical operation, both the IN OK and OUT OK power

LEDs are lit.

• 10 G link status LEDs: These LEDs individually indicate the transmit and receive activity of each

10 Gb SFP+ transceiver.

• System-error LED: When this LED is lit, it indicates that a system error has occurred. An LED on

the light path diagnostics panel is also lit to help isolate the error.

• Power-on LED: When this LED is lit and not flashing, it indicates that the controller is turned on.

The states of the power-on LED are as follows:

–

Off: Power is not present, or the power supply or the LED itself has failed.

–

Flashing rapidly (4 times per second): The controller is turned off and is not ready to be

turned on. The power-control button is disabled. This will last approximately 20 to 40 seconds.