From the Navigation menu, select Timing → System Timing → Configuration.

Result:

The System Timing Configuration screen appears.

Important!

The System Timing Source parameter must be provisioned to Line for OC-3/STM-1 Line timing.

Enter the required System Timing Source and Differential Timestamp Frequency parameters, then click Submit.

From the Navigation menu, select Timing → System Timing → Summary and verify that the system timing parameters were provisioned correctly.

Result:

The System Timing Summary screen appears.

End of steps