Step 1: Display Current Power Supply Alarms

Action

To display power supply alarms, use the following CLI command:

user@host> show chassis alarms

Sample Output

user@host> show chassis alarms

4 alarms currently active

Alarm time               Class  Description

2002-04-08 15:25:12 PDT  Major  Power Supply A 2.5 volt output failed

2002-04-08 15:25:12 PDT  Major  Power Supply A 5 volt output failed

2002-04-08 15:25:12 PDT  Major  Power Supply A 3.3 volt output failed

2002-04-08 15:25:12 PDT  Major  Power Supply A fan failed

What It Means

The command output displays the alarm date, time, severity level, and description. Table 65 shows the power supply alarm descriptions that you see on the craft interface LCD and the alarms that you see at the CLI. For information about conditions that trigger power supply alarms, see Gather Component Alarm Information.

Table 65: Power Supply Alarms

Power Supplies	Craft Interface LCD Short Version	CLI Long Version
M5 and M10	N/A	Power supply x not providing power
M7i and M10i	N/A	Power supply x not providing power
M20	N/A	Power supply x not providing power
	N/A	Power supply x 3.3V failed
	N/A	Power supply x 5V failed
	N/A	Power supply x 2.5V failed
M40	Supply x FAIL	Power supply x not providing power
	Supply x 3V FAIL	Power supply x 3.3V failed
	Supply x 5V FAIL	Power supply x 5V failed
	Supply x 2V FAIL	Power supply x 2.5V failed
M40e	PEM pem-ID Removed	YELLOW ALARM - PEM pem-ID Removed
	PEM pem-ID High Temp	RED ALARM - PEM pem-ID High Temperature
	PEM pem-ID Output Fail	RED ALARM - PEM pem-ID Output Failure
	PEM pem-ID Input Fail	RED ALARM - PEM pem-ID Input Failure
M160	PEM pem-number Removed	YELLOW ALARM - PEM pem-number Removed
	PEM pem-number High Temp	RED ALARM - PEM pem-number High Temperature
	PEM pem-number Output Fail	RED ALARM - PEM pem-number Output Failure
	PEM pem-number Input Fail	RED ALARM - PEM pem-number Input Failure
T320	PEM pem-number Removed	YELLOW ALARM - PEM pem-number Removed
	PEM pem-number Over Temp	RED ALARM - PEM pem-number Over Temperature
	PEM pem-number Output Fail	RED ALARM - PEM pem-number Output Failure
	PEM pem-number Input Fail	RED ALARM - PEM pem-number Input Failure
T640	PEM pem-number Removed	YELLOW ALARM—PEM pem-number Removed
	PEM pem-number Over Temp	RED ALARM—PEM pem-number Over Temperature
	PEM pem-number Output Fail	RED ALARM—PEM pem-number Output Failure
	PEM pem-number Input Fail	RED ALARM—PEM pem-number Input Failure

For information about what conditions trigger power supply alarms and their remedy for each router type, see Display the Current Router Alarms.

Alternative Action

To display current power supply alarms and the alarm indicator states, use the following CLI command:

user@host> show chassis craft-interface

Sample Output

Red alarm:     LED on, relay on

Yellow alarm:  LED off, relay off

Host OK LED:   On

Host fail LED: Off

FPCs     0  1  2  3

-------------------

Green    *  *  *  *

Red      .  .  .  .

LCD screen:

     +--------------------+

     |myrouter            |

     |4 Alarms active     |

     |R: Supply A 2v FAIL |

     |R: Supply A 5v FAIL |

     +--------------------+

What It Means

The command output displays the alarm indicator status and the alarms that display on the craft interface LCD display.

(For M7i router) Check the red and yellow alarm LEDs on the FIC. Power supply failure or removal triggers an alarm that causes one or both of the LEDs to light.