User manual

22 SpotCell Viewer 2
B.2 SpotCell internal events
Events generated as a result of internal built-in-tests are:
Event Description Troubleshooting
CU Voltage Out-of-range:
Out of Service
OR
CU Voltage Out-of-range:
Cleared
The CU power supply voltage is outside
the rated operating range. Coverage is
not provided during this period.
When the out-of-range condition is no
longer present, the event notification is
cleared. Coverage is provided after the
event is cleared.
Check the power supply connection
to the CU.
If the problem persists, remove power
from the CU and call product
support.
DU Current Out-of-range:
Out of Service
OR
DU Current Out-of-range:
Cleared
The DU current consumption is outside
the rated operating range. Coverage is
not provided during this period.
When the out-of-range condition is no
longer present, the event notification is
cleared. Coverage is provided after the
event is cleared.
Check the power supply connection
to the CU and the RF cable
connection to the DU.
If the problem persists, remove power
from the CU and call product
support.
DU Voltage Out-of-range:
Out of Service
OR
DU Voltage Out-of-range:
Cleared
The DU power supply voltage is outside
the rated operating range. Coverage is
not provided during this period.
When the condition is no longer present,
the event notification is cleared.
Coverage is provided after the event is
cleared.
Check the power supply connection
to the CU and the RF cable
connection to the DU.
If the problem persists, remove power
from the CU and call product
support.
Poor Isolation:
Move CU
OR
Poor Isolation:
Cleared
The isolation between the DU and the CU
is low. Coverage is degraded during this
period.
When the condition is no longer present,
the event notification is cleared. Full
coverage is provided after the event is
cleared.
Move the CU away from the DU and
observe the Isolation bars on the CU
LCD display. A minimum of four bars
are required for adequate isolation.
If the problem persists, relocate the
DU further away from the CU.
Synthesizer Out-of-lock:
Out of Service
OR
Synthesizer Out-of-lock:
Cleared
The synthesizer is being retuned.
Coverage is not provided during this
period.
When the condition is no longer present,
the event notification is cleared.
Coverage is provided after the event is
cleared.
A period of ten minutes is required to
retune and reassess the operation of
a synthesizer.
If the problem persists, call product
support.
Insufficient Isolation Available isolation is inadequate for the
system to become operational.
Increase the separation/isolation
between the CU and the DU.