Clock Transparent Transmission

In this user interface, you can configure transparent transmission of clock on boards so that the STM-1 optical port can trace the SDH clock on the third-party network and the board can restore the clock from E1 services on the VC12 path.

Navigation Path

In the NE Explorer, click a board and choose Configuration > Clock Transparent Transmission > Clock Transparent Transmission from the Function Tree.

Parameters

Field

Value

Description

Retiming Mode

System Clock, ACR Clock

Indicates the clock retiming mode.
  • System Clock: The board traces the system clock on the NE.
  • ACR Clock: The board traces the upstream STM-N line clock on a board of the NE.
CAUTION:
Modifying this parameter can interrupt the services. Hence, exercise caution when performing this operation.

Port

For example: 15-CD1-2(PORT-2)

Indicates the port for extracting the third-party network clock that traverses an asynchronous SDH network. The ports on the board use the third-party network clock to transmit and receive SDH frames.

NOTE:

This parameter can be set only when Retiming Mode is set to ACR Clock.

CAUTION:
Modifying this parameter can interrupt the services. Hence, exercise caution when performing this operation.

Clock Source

For example: Clock Source No.3

Indicates the restored clock source. The restored clock can be used as the system clock source.

NOTE:

Assign the highest clock priority to the restored clock if you want to use it as the system clock source.

Port

For example: 1(PORT-1)

Indicates the port where clock can be restored.

Timeslot

For example: VC12-10

Indicates the timeslot of the VC12 path where the clock can be restored.


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