
DX-80 I
NSTALLATION AND
M
AINTENANCE
M
ANUAL
P7290 IMM
4-6
Symptom(s)
Diagnostic Aid
Cause(s)
Action
Another
extension
While on intercom call is the static heard only when
connected to one particular extension? … Examine
that extension.
Station
cabling/MDF
wiring
If static exists on all calls, check station
cabling/wiring and all MDF connections ...correct
any problems.
Extension
apparatus
If noise persists, change-out swappable
components (handset, handset cord). If noise
continues try a known good extension connected to
this station cable.
Static and / or noise can
be heard during a
conversation.
Process of
elimination.
Industry
standard
technician
testing tools
(lineman's test
set, etc.)
Telco problem If static/noise is heard on CO lines only, determine
if other extensions also hear the noise/static.
If so, are several CO lines affected or only a few.
Disconnect CO line at interface point and connect
Lineman's test set to the same point of connection
ahead
of the system. If noise/static persists...
contact the local servicing telephone company and
request repair.
If noise/static can be isolated to the DX-80
equipment, verify which CO line ports are affected
(which CO ports seem to have noise/static).
...replace interface modules as required.
Symptom(s)
Diagnostic Aid
Cause(s)
Action
Programming lost or
changed.
Digital Executive
Telephone
display.
Intended
programming
change.
Check with system administrator for incidental
changes made.
PC-DBA
programming
changes Send All
operation.
When using PC-DBA to make customer database
changes the user must take special precaution
not to overwrite existing data with residual PC-
DBA working directory values. When using PC-
DBA to update any database, it is highly
recommended to perform the function Receive All
prior to making any specific database changes to
assure that the working directory database
matches the database in use at the customer
site.
Bad Memory
battery
If power fluctuations occur and the Memory Battery
Backup battery is low or bad, the customer
database is susceptible to being defaulted
(factory settings loaded) whenever a power
interruption occurs. If this occurs change the
standard (photo-cell type) lithium battery.
Содержание DX-80
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