User's Manual

PN 8700-10 Help Hot Line (U.S. only): 1-800-530-9960 10-9
620003-0
PRELIMINARY Warning Indications
Expansion Hub Warnings
Remote Access Unit Warnings
Table 10-5 Expansion Hub Warnings
Warning Message Action Impact
Downlink fiber optical
loss greater than recom-
mended maximum.
Check the downlink fiber cable for excessive
optical loss.
Clean the cable connector.
Clean the fiber ports.
Degraded system performance.
Uplink laser is failing. Replace the Expansion Hub when possible. The uplink laser will eventually fail resulting in
the Expansion Hub and connected RAUs being
off-line.
Temperature is high. Check room environmental controls. Potential Expansion Hub failure.
Fan failure(s). Check the Expansion Hub fans for rotation,
air flow blockage, dust; replace the Expan-
sion Hub if temperature rises.
Temperature may rise to fault level resulting in
the Expansion Hub and connected RAUs being
off-line.
Cat-5/6 cable between
EH and RAU is greater
than recommended
maximum.
Check that the Cat-5/6 cable does not exceed
the recommended maximum length.
Degraded system performance.
Table 10-6 Remote Access Unit Warnings
Warning Message Action Impact
Temperature is high. Move the RAU to cooler environment. Potential RAU failure.
DC voltage is low. Check the Cat-5/6 cable for shorts and opens.
Replace the RAU when possible.
RAU at minimum voltage setting
for proper operation. not an impact
(JS)
Power amplifier is fail-
ing.
Replace the RAU when possible. Potential RAU failure.
Cat-5/6 cable between
EH and RAU is greater
than recommended
maximum.
Check that the Cat-5/6 cable does not exceed
the recommended maximum length.
Degraded system performance.
Antenna disconnected. Check the RAU SMA antenna connection. Poor RAU coverage.