Troubleshooting The Power System; Led On All Supplies Are Blinking Or Off; Led On One Supply Is Off - Juniper M10i Hardware Manual

Troubleshooting the Power System

When a power supply is functioning correctly, the green LED labeled
lit steadily.
If any other LED states apply, consult the following sections:

LED on All Supplies Are Blinking or Off

If the LED is off on all power supply faceplates, either someone has switched off
power to the router or the system temperature has exceeded the acceptable
maximum. In the latter case, the Routing Engine shuts down all power supplies.
There is no power to the router, so no LED is lit, including the alarm LEDs on the
craft interface.
Excessive system temperature is almost always caused by excessive environmental
temperature. Correct the environmental temperature before repowering the router.

LED on One Supply Is Off

If the LED on one power supply is off, but the LED on the other supplies indicate that
they are functioning properly, perform the following diagnostic procedure:
user@host> show chassis fpc pic-status
Slot 0 Online
PIC 0 4x OC-3 SONET, MM
PIC 1 1x CSTM1, SMIR
PIC 3 2x OC-3 ATM, MM
Slot 1 Online
PIC 0 1x OC-12 SONET, MM
PIC 1 1x OC-12 ATM, MM
PIC 2 2x OC-3 ATM, MM
PIC 3 2x OC-3 ATM, MM
For further description of the output from the command, see the JUNOS System
Basics and Services Command Reference.
LED on All Supplies Are Blinking or Off
on page 85
LED on One Supply Is Off
Chapter 12: Troubleshooting Hardware Components
on page 85
Troubleshooting the Power System
is
OUTPUT OK
85