Alcatel-Lucent 1643 AMS User's Operation Manual page 343

Timing provisioning
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.
Lock out request
The Lock out state can be changed with the Lock Out Request parameter. This can be
set to Yes or No.
The Lock Out Request is for maintenance purposes. A Timing Source, which has a
priority value assigned to it, can be temporarily locked out. When the Timing Source is
already disabled, a Lock Out Request is rejected. A Lockout Request is set to No
automatically when the Timing Source is disabled.
When Priority = Disabled the Lock Out Request field is greyed out.
Important! When a timing source is locked out, the network element is in the
Abnormal State.
Output state
The user can view the Output State of the signal generated by the station clock
output(s). Possible values are Normal, Disabled, and Unacceptable.
• Normal: indicates that the output is not disabled and has a quality level equal to or
above the Acceptance QL
• Disabled: indicates that the station clock output is disabled
• Unacceptable: indicates a quality level below the Acceptance QL, or a signal status
is failed.
Priority
The priority can be set for each timing source. For a network element with N timing
sources provisioned, the priority can have values from 1 to N.
The Priority parameter can also have the value Disabled. A disabled timing source will
not be taken into account in the Timing Source Selection for the system timing.
Important! Make sure not to provision identical Priority values to multiple timing
sources.
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365-312-807R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
Parameters for provisioning station clock output
7-41