Wilan LIBRA 5800 AP, User Manual

Page: 99 / 156

Troubleshooting areas
June 2003 Rev 0 99
Bad connectors Visually inspect connectors
Change cable/connectors
Temperature Determine if ambient operating temperature is too high
or low
Change ambient temperature to specified range.
Low signal
strength/fade
margin Bad radio Bench test system
Change IDU or IODU
Poor antenna
alignment Use RF diagnostics to realign antenna
Bad cable Visually inspect cables/connectors
Sweep cable
Change cable/connectors
Incorrect radio
configuration Bench test the radio to confirm configuration
Reconfigure radio
No Fresnel zone
clearance Increase antenna height to obtain clearance
Relocate antenna
Remove obstacles to LOS
Power supply
problems Try a different AC circuit
Measure the power at the AC outlet
Measure the output from the power supply unit
Replace Power Supply
High packet
loss Signal strength too
low Perform RSSI test to determine fade margin
Check for obstacles in RF path
Check for interference
Point antenna in different directions to take advantage
of beneficial multipaths
Reposition IODU to establish better LOS
Replace IODU
Interference Change center frequency
Increase RF power
Change polarization of antennas
Get separation or change physical location of antenna
Temperature Determine if ambient operating temperature is too high
or low
Increase or reduce ambient temperature
No
communicatio
n between
units Configuration
problems Check the following configuration settings:
Indication Possible Cause Corrective Action