Cisco 10720 Configuration Guide - Page 169

AC OK, AC Power Supply LEDs, Table 5-1

Page 169 highlights

Chapter 5 Maintaining the Cisco 10720 Internet Router Figure 5-50 AC Power Supply LEDs AC OK AC OK DC OK DC OK OTF OTF AC OK DC OK OTF Removing and Installing the AC or Dual DC Power Supply 66445 The AC power supply LEDS provide status information. (See Table 5-1.) Table 5-1 AC Power Supply Status LEDs LED AC OK DC OK OTF (Over Temp Failure) Activity Solid Green Off Solid Green Off Amber/Red Solid Green Off Description The AC 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. 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 5-47

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5-47
Cisco 10720 Internet Router Installation and Configuration Guide
78-13062-10
Chapter 5
Maintaining the Cisco 10720 Internet Router
Removing and Installing the AC or Dual DC Power Supply
Figure 5-50
AC Power Supply LEDs
The AC power supply LEDS provide status information. (See
Table 5-1
.)
AC OK
DC OK
OTF
AC OK
DC OK
OTF
66445
AC OK
DC OK
OTF
Table 5-1
AC Power Supply Status LEDs
LED
Activity
Description
AC OK
Solid Green
The AC input voltages to both individual power supplies
are within acceptable limits.
Off
Power is off.
DC OK
Solid Green
Both individual power supplies are functioning normally.
Off
Power is off.
OTF (Over Temp
Failure)
Amber/Red
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.
Solid Green
The temperature of the corresponding individual power
supply is within acceptable limits. (That is, the
temperature is normal.)
Off
Power is off.