4. Commissioning
Page 30
MF0123A1F
_FCC
_uc Manual for PSR 700/800 MHz
PSR Alarm Function Description
PSU Fail Alarm
This alarm is raised if there is a problem with internal power supply.
DL Shutdown
Alarm
If the output level is higher than the DL shutdown level, the
amplifier is turned off and the DL shutdown alarm is activated. The
shutdown cycle is 60 seconds.
UL Shutdown
Alarm
If the output level is higher than the UL shutdown level, the
amplifier is turned off and the UL shutdown alarm is activated. The
shutdown cycle is 60 seconds.
Manual Amp Off This alarm is raised when the user turns off the Amplifier manually.
Service
Antenna VSWR
Alarm
This alarm occurs when the current VSWR ratio is higher than the
set VSWR ratio. If it is lower than the set VSWR ratio, it is cleared
immediately.
Donor Antenna
Malfunction
Alarm
This alarm
is caused by
one of the
following
reasons:
This alarm occurs when the current VSWR ratio is
higher than the set VSWR ratio. If it is lower than the
set VSWR ratio, it is cleared immediately.
This alarm is raised when the DL input power level
is below -90 dBm.
DL HPA Fail
Alarm
This alarm is raised if the DL high power amplifier HPA is on and
an overcurrent or low current state is detected. Under this
condition, the HPA is automatically switched off.
UL HPA Fail
Alarm
This alarm is raised if the UL high power amplifier HPA is on and
an overcurrent or low current state is detected. Under this
condition, the HPA is automatically switched off.
PLL Lock
Detector Alarm
This alarm occurs when the PLL is unlocked. In addition, all high-
power amplifiers will be switched off.
Isolation Alarm
This alarm occurs when the isolation between donor and coverage
antenna is not at least 20 dB above the repeater gain.
Temperature
Alarm
This alarm occurs when the repeater is used outside of its specified
temperature range. (>80° Celsius device temperature)
Donor Antenna
Disconnection
Alarm
Without UL traffic the donor antenna is checked every 3 minutes
to see if it is connected. The alarm is based on the donor antenna
calibration described in chapter 5.7.5 VSWR Check and Donor
Calibration.
Note: For possible countermeasures, please refer to chapter 6 Status LEDs, PSR