HP OMNIBER 718 37718A User Manual page 88

N OTE
HOW TO:
Making Measurements
Measuring Service Disruption Time
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.
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
SERVICE DISRUPT
displays.
78
on the and
TRANSMIT
TEST FUNCTION
RECEIVE