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9-29
D-620003-0-20 Rev J
CONFIDENTIAL
Troubleshooting
9.3.2.2
Troubleshooting Expansion Hub LEDs During Normal Operation
• All of the Expansion Hub
LINK
and
E-HUB/RAU
LEDs that have RAUs connected
should be Green/Green, indicating that the RAU is powered on, communication is
established, and operation is normal.
• The
POWER
,
EHUB STATUS
,
DL STATUS
, and
UL STATUS
LEDs should all be
Green.
Table 9-12
Troubleshooting Expansion Hub Port LEDs During Normal
Operation
During
Normal
Operation
Expansion
Hub Port
LEDs
State
Action
Impact
RAU is not
connected
LINK
Red
If the RAU was disconnected acci-
dentally, re-connect the
CAT-5/5E/6 cable. The Expansion
Hub’s port LEDs should change to
Green/Red (then Green/Green,
after 20 seconds, if the Main Hub is
connected, powered on, and has
band programmed).
Use AdminManager’s “Clear All
Disconnect Status” command if
you are permanently removing the
RAU from service. The Expansion
Hub’s port LEDs should change to
Off/Off.
The RAU was previously connected, but
it is not currently connected; the RAU
cable is disconnected.
RAU
Off
RAU is
connected
LINK
Red
Disconnect/reconnect the
CAT-5/5E/6 cable to force
power-on reset to the RAU. If the
port LEDs remain Red/Off, check
for the exact cause of Expansion
Hub faults using AdminManager.
Lost communications with the RAU. The
RAU could have powered down due to
over current; cable could have been dam-
aged.
RAU
Off
LINK
Green
The RAU reports a fault condition;
check for the exact cause of Expan-
sion Hub and RAU faults using
AdminManager.
Depends on the fault condition.
RAU
Red
Note: * applies to earlier firmware versions.
