Alcatel-Lucent 6850-48 硬件手册

OmniSwitch 6850 Series Chassis and Hardware Components

OmniSwitch 6850 Series Power Supplies

OmniSwitch 6850 Series Hardware Users Guide

page 2-89

The switch constantly monitors the power supply operation. If either the primary or backup power source 
(optional) unexpectedly shuts down, the switch sends out a notification to the user. In addition, the power 
LED on the chassis front panel display solid amber.

Note. For detailed OmniSwitch 6850 Series LED information, refer to 

To check the number of power supplies currently operating, and the status of each power supply, use the 

 command. For example:

-> show power

Power Supplies in chassis 1
PS        Operational Status
---------+-------------------
PS-1       UP
PS-2       NOT PRESENT

The primary (i.e., factory-installed) power supply is listed as PS-1 in the show power command output. 
The backup power supply is listed as PS-2. In the example above, there is no backup power supply 
installed.