User's Manual

9-18 InterReach Unison Installation, Operation, and Reference Manual PN 8700-10
620003-0 Rev. B
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-5/6
cable. The Expansion Hub’s port
LEDs should change to Green/Red
(then Green/Green, after 20 sec-
onds, if the Main Hub is connected,
powered on, and has band pro-
grammed).
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.
RAU was previously connected, but it is
not currently connected; RAU cable is
disconnected.
RAU
Off
RAU is
connected
LINK
Red Disconnect/reconnect the Cat-5/6
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 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