Diagnostics
4-3
GDC 048R154-000
Figure 4-1
Fault Isolation Procedure
Pass
or
Fail
Perform Network Local
Test with
QRSS Self Test
Pass
Fail
Pass
or
Fail
Perform Network Remote
Test, or Network Remote
Test with Self Test, with
remote configured for Line
Loopback
Local Equipment or
Equipment-to-DSU
Connection Problem
Pass
or
Fail
Communication Line or
Line-to-DSU Connection
Problem
Pass
or
Fail
Perform Network Local
Test with QRSS Self Test
at remote DSU
Remote DSU or Equipment
Problem
Pass
or
Fail
Perform Network Local
Test at remote DSU
Remote DSU Problem
Pass
or
Fail
No System Problem
Remote Equipment or
Equipment-to-DSU
Connection Problem
Perform Network Remote
Test, or Network Remote Test
with Self Test, with remote
configured for Payload
Loopback
Fail
Fail
Fail
Fail
Fail
Pass
Pass
Pass
Pass
Pass
Perform Network Local Test
Local DSU Problem
Start
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