Configuring Phase-Locked Source Output of External Clocks

When a clock signal passes through 10 or more NEs, frequency offset and drift may occur. As a result, the clock signal transmitted to the downstream NE is degraded. To prevent this from happening, a 2M phase-locked source must be used to optimize the clock signal.

Procedure

  1. In the NE Explorer, select an NE and then choose Configuration > Clock > Physical Clock > Phase-Locked Source Output by External Clock from the Function Tree.
  2. Click Query to query the existing parameter settings.
  3. Set the external clock attributes of the 2M phase-locked source. Set the parameters manually, such as External Clock Output Mode and External Clock Output Timeslot.

    NOTE:

    In the case of forced shutdown of the output of the external clock, the 2 Mbit/s and 2 MHz of the two external clocks are shut down and there is no output signal from the two clocks. This command has a higher shutdown priority than all automatic shutdown functions provided by software. By default, the forced shutdown of the external clock output is disabled.

  4. Click Apply.

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