Parameters for provisioning system timing
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Introduction
The system timing functional block in the network element is responsible for:
• Selecting the timing sources to synchronize the system.
• Selecting the timing mode for the system
• Translating the quality level into the S1-byte of the outgoing signal.
The different parameters that can be set in the system timing functionality are indicated
in the figure below.
Functional diagram
A functional diagram of the System Timing functionality
Active system timing source
The Active System Timing Source indicates the timing source currently used to
synchronize the system, together with the Switch Status of the source and the latest
issued Switch Request.
Lock out
The user can disable a specific timing source that enters the timing source selection
without changing the priority settings. If a timing source is locked out, it will not take
part in the timing source selection.
Whether a timing source is locked out is indicated by the Lockout parameter. The
possible values for the Lockout parameter are: Yes and No.
Timing provisioning
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7-32
Alcatel-Lucent - Proprietary
See notice on first page
365-312-807R7.2
Issue 4, May 2007
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