User's Manual

User Manual
SmartCell Repeater
20
3.4.3 Troubleshooting Guide Related to RF
Item Check Point Troubleshooting
Check before
system
operation
System input power
range
-Downlink: -100dBm ~ -27dBm
-Uplink: -100dBm ~ -27dBm
System gain
(DL/UL)
- 60dB ~ 90dB
Output power
at server port
- Downlink: 33dBm ± 2dB
- Uplink: 33dBm ± 2dB
Check points before open
for service
-Please check quantity of all accessories with
specification before you set up
-Fit cable length in accordance with field condition
Check after
system
operation
Check points after open
for service
Check following status;
-Verify the antennas are securely mounted and
pointed in the correct directions
-Connection status between antennas and RF cable
-Verify the Repeater is securely mounted
-Proper AC power status
-Grounding status of electrical circuit
-Coaxial cable (RF) construction status
-Connectors and combiners connection status
-Cable connection status against leakage of water
When
repeater
does not
work
properly
Check electricity cord
connection status
-Re-plug in Adapter cord
When in
alarming
DL VSWR alarm
Check following status;
-Make sure Server Antenna Port is disconnected.
-Reset Adapter upon completing Alarm
troubleshooting
DL over-output alarm
-Make sure output power is operating normally
-Reset Adapter upon completing Alarm
troubleshooting
UL over-output alarm
-Make sure output level is operating normally
-Reset Adapter upon completing Alarm
troubleshooting
Temperature alarm
Check following status;
-Setting level of maximum temperature limit
-Temperature offset is normal or not
-Circumstances of temperature
-Reset Adapter upon completing Alarm
troubleshooting
RF off
-Verify the HPA’s are On
-Reset Adapter upon completing Alarm
troubleshooting
When output
power is no
longer
Technician should verify
category of alarm at the
front side of repeater
-Red light on the Shutdown LED, technician should
troubleshoot the alarm via Notebook computer