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SONET_Usr.bk Page 110 Wednesday, December 13, 2000 11:11 AM
Making Measurements
Performing a Tributary Scan
TIP:
The SDH/SONET Tributary Scan display can be logged to the chosen logging
device. See "Logging on Demand " page 146.
1 Set up the transmit and receive SDH/SONET interfaces and payload as required.
HOW TO:
2 Choose the required BIT ERROR THRESHOLD.
3 Choose the required TEST TIMING.
4 The Tributary Scan results can be viewed on the
110
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See "Setting Transmit Interface" on page 20 (for SDH) and page 60 (for SONET)
and also "Setting Receive Interface" on page 30 (for SDH) and page 70 (for
SONET).
This determines the error rate above which a failure is declared.
The value you choose is the test time for each individual tributary and not the total
test time.
For example, 28 VT-1.5 tributaries in an STS-1 SPE - the time taken to complete
the Tributary Scan will be 28 X TEST TIMING choice.
display.
SONET TRIBSCAN
The Scan can be started on the
display or the
SONET TRIB SCAN
If the Scan is started on the
TRANSMIT
display, the OmniBER 720 changes to the
SONET TRIB SCAN
display.
,
RESULTS
,
TEST FUNCTION
TRANSMIT
display by choosing START.
RESULTS
,
TEST FUNCTION
,
,
RESULTS
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