
7.118 Clock Source Threshold
Description
The
Clock Source Threshold
parameter indicates the lower quality threshold of 2M external
clock source. When the clock quality level of the external clock source that is selected from the
2M phase-locked source priority table is inferior to the threshold, the 2M phase-locked source
becomes invalid, and the action specified for 2M phase-locked source failure is invoked to
control the external clock source output.
Impact on the System
The system running is not affected.
Values
Value Range
Default Value
No Threshold Value, G.813
SETS Signal, G.812 Lock Clock
Signal, G.812 Transit Clock
Signal, G.811 Clock Signal
No Threshold Value
The following table lists the description of each value.
Value
Description
No Threshold Value
Threshold disabled
G.813 SETS Signal
Indicates that the lower threshold is not inferior to the
G.813 SETS signal.
G.812 Lock Clock Signal
Indicates that the lower threshold is not inferior to the
G.812 lock clock signal.
G.812 Transit Clock Signal
Indicates that the lower threshold is not inferior to the
G.812 transit clock signal.
G.811 Clock Signal
Indicates that the lower threshold is not inferior to the
G.811 clock signal.
Configuration Guidelines
In actual application, the output quality threshold of external clock source should be determined
according to the quality information about the NE clock and the opposite NE.
Relationship with Other Parameters
None.
7 List of Parameters
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
7-96
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Copyright © Huawei Technologies Co., Ltd.
Issue 02 (2011-06-30)