User's Manual

Maintenance, Troubleshooting, and Technical Assistance PRELIMINARY
10-6 InterReach Unison User Guide and Reference Manual
PN 8700-10
620003-0
Failed to perform
system test.
STATUS
Red Internal failure.
Main Hub internal fail-
ure.
If common point of failure for
more than one Expansion Hub,
replace the Main Hub.
Replace the Expansion Hub
when possible.
Degraded perfor-
mance.
Uplink RAUn
AGC failure.
Universal or
particular
RAU port?
(JS)
LINK
Red Cat-5/6 cable length.
Expansion Hub uplink
port failure.
Expansion Hub internal
failure.
Check Cat-5/6 cable length.
Move RAU to another port. If
no fault reported, replace the
Expansion Hub. If fault
reported, replace RAU.
Expansion
Hub and con-
nected RAUs
are off-line.
RAU
Off
No communica-
tion with RAUn
LINK
Red Cat-5/6 cable failure.
RAU internal failure.
Expansion Hub port
failure.
Verify Cat-5/6 cable has no
shorts or opens.
Move RAU to another port. If
fault persists, replace RAU,
else replace the Expansion
Hub.
RAUn is off-line.
RAU
Off
RAUn over cur-
rent
LINK
Green Cat-5/6 cable failure.
RAU internal failure.
Verify Cat-5/6 cable has no
shorts or opens.
Move RAU to another port. If
fault persists, replace RAU. If
no fault reported, remove RAU,
power cycle the Expansion
Hub, connect known good
RAU to port. If fault reported,
replace the Expansion Hub.
RAUn is off-line.
RAU
Red
Table 10-2 Expansion Hub Faults (continued)
Fault Message LED State Possible Causes Action Impact