Instruction Manual

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D-620TBD-0-20 Rev A CONFIDENTIAL
Troubleshooting
9.3.3.1 Troubleshooting Main Hub LEDs During Normal Operation
• All of the Main Hub’s LEDs should be green during normal operation. If any LEDs
are red, get status using AdminManager to determine the exact cause and recom-
mendations.
Table 9-1 Troubleshooting Main Hub Port LEDs During Normal Operation
During
Normal
Operation
Main Hub
Port LEDs State Action Impact
Expansion
Hub Not
Connected
PORT
Red If the Expansion Hub was discon-
nected accidentally, re-connect the
cables. The LEDs should change to
Green/Red (then Green/Green, after
20 seconds, if the Main Hub band
has been programmed).
When the Expansion Hub is to be
removed from service permanently,
use AdminBrowser’s ‘Clear All Dis-
connect Status’ command to clear all
disconnect states to no connect
states.
The Expansion Hub was previously
connected, but it is not currently con-
nected; the Expansion Hub uplink
cable disconnected.
AdminBrowser clears all disconnects
caused by installation as part of the
clean-up process. After installation,
power cycle the Main Hub or use
AdminBrowser’s “Clear All Discon-
nect Status” command.
Changes the Main Hub’s port LEDs to
Off/Off.
Expansion
Hub
Connected
PORT
Red 60
ppm)
Use AdminBrowser to determine the
exact cause of the Main Hub’s faults.
Lost communication with Expansion
Hub; could be Expansion Hub problem
or fiber cable problem.
The Expansion Hub communication
problems delay MH responses to
AdminBrowser commands, resulting in
command time-outs. You can discon-
nect the offending Expansion Hub ini-
tially to obtain status from the rest of
the system, then connect the Expansion
Hub and resolve the communication
problem.
PORT
Red The Expansion Hub or connected
RAU reports a fault condition; use
AdminBrowser to determine the
exact cause of the Expansion Hub
and RAU’s faults.
Degraded performance or unit may be
off-line.
Depends on fault condition.