User's Manual

9-8 InterReach Unison Installation, Operation, and Reference Manual PN 8700-10
620003-0 Rev. B
Downlink pilot
failure
STATUS
Red Downlink fiber has
high optical loss.
Measure downlink optical fiber
loss.
Clean downlink fiber connec-
tors.
(Refer to Section 9.2.)
Clean the Main and Expansion
Hubs’ downlink fiber ports.
(Refer to Section 9.2.)
Degraded perfor-
mance or Expan-
sion Hub and
connected RAUs
are off-line.
Main Hub internal
hardware failure.
If more than one Expansion
Hub connected to the same
Main Hub reports this failure,
replace the Main Hub.
Main Hub downlink
port failure.
Move fiber pair to another port.
If fault is not reported, fiber is
okay and the Main Hub port is
bad. Use AdminManager’s
“Clear All Disconnect Status”
command to clear the discon-
nect fault on the original port.
Expansion Hub down-
link port failure.
Swap suspect Expansion Hub
with working Expansion Hub.
If fault persists, replace the
Main Hub; otherwise, replace
the Expansion Hub.
RAUn uplink
AGC failure
LINK
Green Cat-5/6 cable length. Check Cat-5/6 cable length. Degraded perfor-
mance.
RAU
Red Expansion Hub uplink
port failure or RAU
failure.
Move RAU to another port. If
no fault reported, replace the
Expansion Hub. If fault
reported, replace RAU.
Expansion Hub internal
failure.
If more than one RAU con-
nected to the same Expansion
Hub reports this failure, replace
the Expansion Hub.
RAUn downlink
port failure
STATUS
Red Expansion Hub internal
failure.
Move the RAU to another port.
If fault persists, replace the
Expansion Hub. If no fault, flag
previous port as unusable and
replace the Expansion Hub
when possible.
Degraded perfor-
mance.
Table 9-2 Faults Reported by the Expansion Hub (continued)
Fault Message LED State Possible Causes Action Impact