User's Manual
Table Of Contents
- Revision Record
- Table of Contents
- List of Figures
- List of Tables
- Abbreviations
- Chapter 1 Product Description
- Introduction
- Scope of Manual
- Safety
- Warning Signs
- Human Exposure of RF Radiation
- Radiation Safety Distances
- Electrostatic Discharge (ESD)
- Sub Unit Overview
- Wideband Amplifier PCBA (WBA)
- Power Amplifier PCBA (PA)
- Multi-Carrier Power Amplifier PCBA (MCPA)
- Booster Amplifier PCBA (BA)
- Distribution PCBA (DIA)
- Control Unit PCBA (CU)
- Low Noise Amplifier (LNA)
- Duplex Filter (DPX)
- Fiber Optic Unit (FOU)
- Fiber Optic Node (FON)
- Power Supply Unit (PSU)
- Remote Control Unit (RCU)
- Alarm Interface PCBA (ALI) and Remote Control Interface PCBA (RCI)
- Sub Unit Locations
- Fiber Optic Distribution Networks
- Multi-Operator Configurations
- Chapter 2 Controls, Indicators and Connectors
- Chapter 3 Installation
- Chapter 4 Maintenance
- Chapter 5 Specifications
- Appendix A Block Diagrams
Troubleshooting Wideband Radio Head
4-6 044-05251 Rev A
60 Low traf-
fic activity
RSSI
Statis-
tics
Warning No signal strength on the channel was above the limit
set longer than the time set in the configuration, indi-
cating possible problems with service antenna. The
area that the WRH is servicing may be covered by
another stronger WRH or BTS. Suggested remedy:
Ensure that the antennas and the cellular phone work
in the area to be covered, and that WRH supported
channels are used.
Ceasing The cause of the alarm has ceased.
61 No BCCH
detected
RSSI
Statis-
tics
Warning Signal strength on the BCCH channel was below the
limit set longer than the time set in the configuration,
indicating possible malfunction in the BTS or donor
antennas. Suggested remedy: Ensure that the WRH
is configured to the BCCH channel and that the signal
from the BTS has enough strength.
Ceasing The cause of the alarm has ceased.
65 Gain
reduction
Chan-
nel #,
UL/DL
Warning The gain is reduced below the limit. The gain is
reduced because the output power has been above
the MPC limit more than the preset limit allows.
Ceasing The cause of the alarm has ceased.
66 Over-
power
alarm
Chan-
nel #,
UL/DL
Warning Input power too high, output power above maximum
limit.
Ceasing The cause of the alarm has ceased.
70 Bad table
alarm
CU Error Requested table contains incorrect information (SW
error).
71 Table not
found
CU Error Requested table not found in the database (SW or
calibration error).
72 Table
database
error
CU Error Table database not found (calibration error).
80 Antenna
SWR
alarm
Donor
antenna
service
antenna
Error Too low antenna return loss, caused either by cables,
connectors, or antenna problems.
Suggested remedy: Check antenna and cables.
Ceasing The cause of the alarm has ceased.
90 FON
power
alarm
FON RF Error A DC voltage on a FON PCBA is out of range. Sug-
gested remedy: Replace the FON PCBA.
Ceasing The cause of the alarm has ceased.
91 FON
TxStable
alarm
FON RF Error Laser transmitter control loop voltage out of range.
Suggested remedy: Replace the FON PCBA.
Ceasing The cause of the alarm has ceased.