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PERCEPTIONeke,
Tl/OS-1
SEPTEMBER 1991
11) Reconnect
the connection
to the CSU.
3.80
Cabling
3.81
Table 4 is provided to give cabling pin bits off
the PERCEPTIONekex
backplane.
4 TROUBLESHOOTING
4.00 General
The Troubleshooting
section
contains
flowcharts
for diagnosing
possible faults when installing aTl/
DS-1 interface,
and performing
maintenance
tasks.
To eliminate
system faults, they must first be clas-
sified, then cleared by replacing
the defective
ap-
paratus.
Operational
tests can then be performed
to verify correct
apparatus
operation.
The flow-
charts must be followed
in the sequence
they are
arranged.
Start and end of flowchart
sequence.
Important
notes affecting
_____
the fault clearing
procedure.
Question
to be answered
YES or NO.
Progression
TO or FROM
another flowchart.
Page
numbers
indicate the
location of the flowchart
within this bulletin. Letters
and numbers
denote the
exact entrance
or exit point
in the flowchart.
0
Statement
of a required
action.
FIGURE 13-FLOWCHART SYMBOLS
-lO-
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