User's Manual

USER MANUAL FOR RD-8132
RD-8132 QI
Copyright - refer to title page
Page 25
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5 TROUBLESHOOTING
Following installation and commissioning, troubleshooting tasks to handle alarms may be required. Here
below is the alarm list of the equipment and diagnosis.
Alarm Diagnosis
AC Power Failure Alarm
z Check AC power cable and verify AC mains supply is normal.
During power failed alarm, DC power supply has no output.
DC Power Fault Alarm
z Check if DC output power is overload or short-circuited, if not, it
would be the fault of PSU.
Li-ion Battery Fault Alarm
z Check if the Li-ion Battery connection is correct or any damage of
the battery;
z Replace the fault Li-ion Battery if it couldn't be energized.
UL/DL LNA Alarm
UL/DL PA Alarm
UL/DL PLL Alarm
z Check power and signal connections of respective modules;
z If the power and signal wire connections are OK, then the
respective modules may be faulty;
z Replace the fault modules and return for repair.
DL Output Power Low Alarm
z Reset the output power low threshold;
z Reset the ATT value to increase the Gain;
z Check if Channel No. setting is correct;
z Check the cable connections;
z If alarm can not be cleared, check the equipment.
DL Input Power Overload Alarm
z Eliminate alarm by correct setting of the input power overload
threshold;
z Check if the intensity of signal source is large enough;
z If alarm can not be cleared, check the equipment.
Chassis Over- temperature
Alarm
z Eliminate alarm by setting of temperature threshold;
z If alarm can not be cleared, apply climatic protection to the
equipment.
DL VSWR Alarm z Check MT antenna system if there is downlink VSWR alarm.
Self-oscillation Alarm
z Check whether the Isolation between donor antenna and mobile
antenna is large enough;
z Adjustment to RX/TX antennas can eliminate self-excited
oscillation and verify the (I) could be 10dB larger than Gmax.
Door Open Alarm z Check whether the enclosure door is closed.
External Alarm 1~4
z Check if either of the external devices connected to the equipment
is faulty.
Table 1: Alarm List and Diagnosis
End of section