HP OMNIBER 718 HP 37718A - Manual (Page 88)

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Making Measurements
Measuring Service Disruption Time
N OT E At DS1 and DS3 Service Disruption results are only available for
Unstructured payloads.
Error Burst Definition
Error bursts start and finish with an error. Bursts of less than 10 us are
ignored.
Bursts are assumed to have completed when >2000ms elapses without
any errors being received.
The longest burst detected is 2 seconds.
Accuracy
300 us for DS1, 2Mb/s and 34Mb/s signals.
60 us for DS3 signals.
HOW TO: 1 If interfacing at SONET set up the SONET transmit and receive
interfaces and payloads required. See "Setting SONET Transmit
Interface " page 4 and "Setting SONET Receive Interface " page 17.
2 If interfacing at DSn set up the DSn transmit and receive interfaces
and payloads as required. See "Setting DSn Transmit Interface "
page 2 and "Setting DSn Receive Interface " page 15.
3 If you choose a DS1 or DS3 framed unstructured payload, choose
on the and
displays.
SERVICE DISRUPT TRANSMIT RECEIVE TEST FUNCTION