User's Manual

Table Of Contents
I ndication Possible Cause Corrective Action
No Ethernet
connection
Bad CAT-5 cable
Visually inspect cable
Change cable
No Ethernet
connection
Bad Connectors
Visually inspect connectors
Change cable/ connectors
No Ethernet
connection
Temperature
Determine if ambient
operating temperature is too
high or low
Change ambient temperature
to specified range
Low signal
strength or fade
margin
Bad ratio
Bench test system
Change LibraPlus unit
Low signal
strength or fade
margin
Poor antenna alignment
Use RF diagnostics to realign
antenna
Low signal
strength or fade
margin
Bad cable
Visually inspect
cables/ connectors
Sweep cable
Change cable/ connectors
Low signal
strength or fade
margin
Incorrect radio
conf iguration
Bench test the radio to
conf irm configuration
Reconf igure radio
Low signal
strength or fade
margin
No Fresnel zone
clearance or severe
NLOS
Check LOS for obstacles such
as trees
Change alignment of antenna
to take advantage of
benef icial multipath signals
Increase antenna height to
obtain clearance
Move antenna to better
location or remove obstacle if
possible
LibraPlus 5860 User Guide Appendix A: Troubleshooting: Troubleshooting Chart Page 75 of 95