User's Manual

Maintenance, Troubleshooting, and Technical Assistance PRELIMINARY
10-12 InterReach Unison User Guide and Reference Manual
PN 8700-10
620003-0
10.3.2 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 and MAIN HUB STATUS LEDs should both be Green.
Table 10-9 Troubleshooting Expansion Hub Port LEDs During Normal
Operation
During
Normal
Operation 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).
If you are removing the RAU from
service permanently, then com-
mand ‘Clear All Disconnect States’
using the AdminManager soft-
ware. 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 the Expansion Hub
faults using the AdminManager for
the exact cause.
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 the Expansion Hub faults
using the AdminManager for the
exact cause.
Depends on the fault condition.
RAU
Red