Making Measurements
Measuring Service Disruption Time
NOTE | 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. |
2If 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.
3If you choose a DS1 or DS3 framed unstructured payload, choose
SERVICE DISRUPT on the TRANSMIT and RECEIVE TEST FUNCTION
displays.
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