Cisco 10720 - Internet Router Installation And Configuration Manual page 170

Removing and Installing the AC or Dual DC Power Supply
Figure 5-51
I N O K
O T F
The dual DC power supply status LEDs provide status information. (See
Table 5-2
LED
IN OK
DC
OTF (Over Temp
Failure)
Cisco 10720 Internet Router Installation and Configuration Guide
5-48
Dual DC Power Supply LEDs
IN O K
D C
D C
O T F
IN O K
D C
O T F
Dual DC Power Supply Status LEDs
Activity
Green
Off
Green
Off
Amber/Red
Green
Off
Chapter 5 Maintaining the Cisco 10720 Internet Router
Description
The DC input voltages to both individual power supplies
are within acceptable limits.
Power is off.
Both individual power supplies are functioning normally.
Power is off.
As a lamp test at power up, this LED comes up amber/red
for approximately half a second.
OR
The power system overheated or one of the internal fans
failed.
The temperature of the corresponding individual power
supply is within acceptable limits. (That is, the
temperature is normal.)
Power is off.
Table 5-2.)
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