6. Status LEDs, PSR Alarms, and Troubleshooting
MF0123A1F
_FCC
_uc
Manual for PSR 700/800 MHz
Page 55
6.
Status LEDs, PSR Alarms, and Troubleshooting
For local supervision, three multi-color LEDs (Power, OSC, and Alarm) are part of the
front panel to display unit status information.
During booting and SW update, all three LEDs blink green, indicating that initialization
and isolation measurement are in process. When the boot process is finished, and the
repeater works properly, all three LEDs are green to indicate normal operation.
The table below shows possible PSR alarm conditions indicated by the LEDs as well as
possible countermeasures.
Status
LED
Indication
PSR
alarm
condition
Trouble & Status
condition
Possible countermeasure
Power
LED
Red
DC/DC
failure
Try to reboot the unit; if this is of no effect, the unit
has to be sent back to the supplier.
OSC
LED
Red
Blinking
Isolation
Alarm
Insufficient
isolation between
antennas
Increase isolation between
donor and coverage antenna
above gain + 20dB.
Green
Blinking
VSWR
Alarm
UL/DL VSWR
Alarm, Antenna
failure
Check for proper connection
between
antennas
and
antenna ports. Check for
obstacles close to antennas.
Check for short-circuit of
antenna cables.
OSC &
Alarm
LED
Red
Blinking
PLL Lock
Detector
Alarm
PLL is unlocked
Reset unit via
Reset
button in
Web GUI*. If the alarm is still
present, contact your supplier.
Alarm
LED
Red
HPA Fail
Alarm
UL/DL High
Power Amplifier
failure
Reset unit via
Reset
button in
Web GUI*. If the alarm is still
present, contact your supplier.
Red
Blinking
Shutdown
Alarm
UL/DL Shutdown
or
Temperature
Alarm
Make sure that RF input power
and ambient temperature are
within specified limits and try a
manual restart.
Green
Blinking
Manual
Amp Off
Amplifier turned
off by factory
setting or by user.
Turn amplifier on via Web GUI.
*
Do not use the HW Reset button in the unit for this purpose, as it will set back all data to factory
defaults. Only use the HW button (as described in chapter 7.2) if the IP address or password was
inadvertently changed or forgotten.
table 6-1 Status LED indication and troubleshooting