RadioFrame Networks Inc DH2 User Manual
RadioFrame System
Operations and Maintenance
RFN_3.1 Beta
119
Some indications list several possible failures along with corresponding
corrective actions. If a failure is isolated to the FRU level, the suspected
component should be replaced with a new one. This restores the system to
normal operation as quickly as possible. For more information, refer to section
7.6 Repair and Technical Support.
corrective actions. If a failure is isolated to the FRU level, the suspected
component should be replaced with a new one. This restores the system to
normal operation as quickly as possible. For more information, refer to section
7.6 Repair and Technical Support.
7.3.1 iSC-3
This section lists troubleshooting procedures for both the iSC-3 (site controller)
and the Environmental Alarm System (EAS). For further information, refer to the
Gen 3 Site Controller System Manual, Motorola, 68P80801E30-O.
and the Environmental Alarm System (EAS). For further information, refer to the
Gen 3 Site Controller System Manual, Motorola, 68P80801E30-O.
Site Controller Troubleshooting
Indication
Possible failure
Corrective action
status gps MMI command
response: Satellite tracking
mode on all channels is less
than 8
response: Satellite tracking
mode on all channels is less
than 8
Antenna, cables, surge
arrestors, RFI
arrestors, RFI
Check antenna, cables, and
surge arrestors before
placing the site controller.
surge arrestors before
placing the site controller.
If antenna installation is OK,
suspect intermodulation
desensitizing.
suspect intermodulation
desensitizing.
status gps MMI command
response: S/N numbers of
mode 8 satellites are less than
25
response: S/N numbers of
mode 8 satellites are less than
25
Antenna, cables, surge
arrestors, RFI
arrestors, RFI
Check antenna, cables, and
surge arrestors before
placing the site controller.
surge arrestors before
placing the site controller.
If antenna installation is OK,
suspect intermodulation
desensitizing.
suspect intermodulation
desensitizing.
ping gps MMI command
indicates no satellites tracked.
indicates no satellites tracked.
Open or damaged GPS and
surge satellites tracked.
surge satellites tracked.
Verify GPS antenna, lead-in,
and surge arrestor.
and surge arrestor.
Slow handovers.
Open or damaged GPS and
surge satellites tracked.
surge satellites tracked.
Verify GPS antenna, lead-in,
and surge arrestor.
and surge arrestor.
Check for open 5 MHz cable
and missing termination of 5
MHz cable.
and missing termination of 5
MHz cable.
Power LED is not lit
No power to site controller
Check power source
Cabling
Check power cabling to site
controller. If necessary,
replace cabling.
controller. If necessary,
replace cabling.
Site controller failure
Replace the site controller.
Site controller can’t
communicate over Ethernet
communicate over Ethernet
Ethernet cabling or
terminations
terminations
Check cabling. Verify that
each end of the cable has a
50-ohm termination.
each end of the cable has a
50-ohm termination.
Site controller failure
Replace the site controller.
LOS/OOF LED is lit
(Loss of Signal/Loss of Frame)
(Loss of Signal/Loss of Frame)
T1/E1 cabling
Check cabling to site
controller. If necessary,
replace the cabling.
controller. If necessary,
replace the cabling.
Site controller failure
Replace the site controller.
Yellow Alarm LED is lit
Site controller is receiving an
alarm from the far end.
alarm from the far end.
Check for proper operation
of external site equipment.
of external site equipment.