Performing A Sonet Tributary Scan - HP OMNIBER 718 37718A User Manual

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Making Measurements

Performing a SONET Tributary Scan

Performing a SONET Tributary Scan
Tributary Scan tests each tributary for error free operation and no
occurrence of Pattern Loss. A failure is indicated by highlighting the
tributary in which the failure occurred. The
mapping setup determines the tributary structure.
MAIN SETTINGS
,
The HP 37718A will configure the Transmitter to the Receiver and the
PATTERN is forced to the payload it will fill.
The SONET Tributary Scan display can be logged to the chosen logging
device. See "Logging on Demand " page 110.
1 Set up the transmit and receive SONET interfaces and payload as
required. See "Setting SONET Transmit Interface " page 4 and
"Setting SONET Receive Interface " page 17.
2 Choose the required BIT ERROR THRESHOLD.
This determines the error rate above which a failure is declared.
3 Choose the required TEST TIMING.
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.
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SONET
TRANSMIT