User's Manual Part 2

Maintenance, Troubleshooting, and Technical Assistance
Page 188 InterReach Fusion Wideband Installation, Operation, and Reference Manual
© 2013 TE Connectivity Ltd D-620616-0-20 Rev H • TECP-77-044 Issue 7 • May 2013
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93.
TroubleshootingExpansionHubPortLEDsDuringNormalOperation
During
Normal
Operation
Expansion
Hub Port
LEDs
State Action Impact
RAU is not
connected
PORT Off If the RAU was disconnected
accidentally, re-connect the CATV
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 AdminBrowser’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 is 
connected
PORT Red Disconnect/reconnect the CATV cable
to force power-on reset to the RAU. If
the port LEDs remain Red check for
the exact cause of Expansion Hub
faults using AdminBrowser.
Lost communications with the RAU. The
RAU could have p
owered down due to
over current; cable could have been
damaged.
PORT Flashing
Red (60
ppm)
The RAU reports a fault condition;
check for the exact cause of
Expansion Hub and RAU faults using
AdminBrowser.
Depends on the fault condition.
PORT Flashing
Red (60
ppm)
The Expansion Hub reports no
connection, cable shorts, or a current
port trap condition.
Expansion Hub communications with the
RAU. The Expansion Hub is at fault. The
cable could have been damaged. The cable
leads may be shorted.
Table94. TroubleshootingExpansionHubStatusLEDsDuringNormalOperation
During
Normal
Operation
Expansion
Hub Status
LEDs
State Action Impact
At Any Time ul status Red Check uplink fiber for optical loss.
Power cycle Expansion Hub one time
to
check uplink laser.
No communications between the Main Hub
and the
Expansion Hub.
Uplink laser failure.
dl status Red Check the downlink fiber for optical
loss
No communications with the Main Hub.
E-h 
status
Red If either the
UL STATUS or the DL
STATUS
are also red, see above.
Cycle power on the Expansion Hub. If
fa
ult remains, replace the Expansion
Hub.
Internal Expansion Hub fault (including
eithe
r of the above
UL STATUS or DL
STATUS
states).