Cisco Systems XR 12404 manual Output OK, Input OK, Output Fail

Chapter 4 Troubleshooting the Installation

			Troubleshooting an AC Power Subsystem
Table 4-1summarizes the function of these indicators.
Table 4-1	DC-Input PEM LED Indicators
LED Label		Color	Function
OUTPUT OK		Green	PEM is operating normally in a powered-on
			condition.
INPUT OK		Green	DC power is present at the PEM input and
			within the specified limits.
OUTPUT FAIL		Amber	Indicates a failure in the PEM.

The following conditions must exist for an AC PEM to operate normally:

•The PEM is fully seated in its bay and the ejector levers are secured.

•AC-input power is within the required range is correctly connected to PEMs.

•The power switch on the PEM is switched on.

•The green LEDs labeled OUTPUT OK and INPUT OK on the PEM are on.

To help isolate a problem with an AC-input power supply, follow these steps:

Step 1 If the OUTPUT OK LED is off, verify that the power supply is fully seated in its bay, the ejector levers are flush with the power supply faceplate, and the captive screws are secured.

•If the OUTPUT OK LED is on, go to Step 6.

•If the OUTPUT OK LED remains off, go to Step 2

Step 2 Check the AC power source.

•Check the AC power cord from the power source to the router.

–Verify that the power cord is seated securely in the PDU and the AC outlet.

–Verify that the power cord is not worn or damaged. If the insulation appears cracked or broken, or the plugs appear loose, replace the power cord with a new power cord.

•Verify that the AC power source circuit breaker is on and has not tripped, and that the circuit breaker has the proper current rating.

	Cisco XR 12404 Router Installation Guide
OL-13830-02		4-7