User's Manual

PN 8700-10 Help Hot Line (U.S. only): 1-800-530-9960 10-7
620003-0
PRELIMINARY Fault Indications
Remote Access Unit Faults
Table 10-3 Remote Access Unit Faults
Fault Message LED State Possible Causes Action Impact
Hardware fail-
ure.
ALARM
Red Internal hardware failure. Replace the RAU. RAU is off-line.
Frequency band
not programmed.
ALARM
Red Wrong version of RAU for
frequency band desired.
Replace the RAU if not valid
for desired frequency band.
RAU is off-line.
RAU is over
temperature.
ALARM
Red Ambient temperature
above maximum.
Check environmental controls;
move the RAU to cooler envi-
ronment.
RAU is off-line.
Power supplied
by EH is too
low.
ALARM Red Cat-5/6 cable failure.
RAU internal failure.
Expansion Hub internal
failure.
Verify Cat-5/6 cable has no
shorts or opens.
Move the RAU cable to another
Expansion Hub port. If fault
persists, replace the RAU; oth-
erwise, replace Expansion Hub.
RAU is off-line.
Power supplied
by EH is too
high.
ALARM Red Cat-5/6 cable failure.
Expansion Hub internal
failure.
RAU internal failure.
Verify Cat-5/6 cable has no
shorts or opens.
Move RAU cable to another
Expansion Hub port. If fault
persists, replace the RAU, oth-
erwise replace the EH.
RAU is off-line.
Cat-5/6 cable too
long.
ALARM Red Cat-5/6 cable is too long. Verify Cat-5/6 cable has no
shorts or opens.
Verify maximum Cat-5/6 cable
length of 150 meters.
RAU is off-line.
Downlink pilot
failure.
Could this
also be a
problem
with the EH
port? (JS)
ALARM Red Cat-5/6 cable failure.
RAU internal failure.
Verify Cat-5/6 cable has no
shorts or opens.
Verify maximum Cat-5/6 cable
length of 150 meters.
Verify minimum Cat-5/6 cable
length of 10 meters.
RAU is off-line.