Installation Manual
4-2
Cisco AS5350 Universal Gateway Chassis Installation Guide
78-10754-03 0A
Chapter4 Troubleshooting
LEDs
Figure 4-1 Rear Panel LEDs 
Table 4-1 Chassis LEDs
Function LED State Description
Alarm Alarm On  An alarm error is detected.
Fast Ethernet  Activity (ACT) Flickering The Fast Ethernet LAN connection 
is transmitting and receiving data 
normally.
Off The Fast Ethernet LAN connection 
is not transmitting or receiving data.
Link (LNK) On Fast Ethernet cable is connected 
properly.
Off The Fast Ethernet port is not 
connected.
Console/Auxiliary Activity (ACT) Flickering The console or auxiliary connection 
is transmitting and receiving data 
normally.
Off The console or auxiliary connection 
is not transmitting or receiving data.
Link (LNK) On The console or auxiliary cable is 
connected properly.
Off The console or auxiliary port is not 
connected.
System Board Status 
(Located to right of 
Console/Auxiliary ports)
OK On System board is operating normally.
Off Power is off or system has not 
booted.
Blinking A memory failure occurred.
T0
T1
ACTIVITY (ACT)
LNK
BITS
BOARD OK
LED
ACTIVITY (ACT)
LNK
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