Alcatel-Lucent 1665 Installation Manual page 277

Operational tests
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Timing verification test procedure
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1
Determine the frame format (SF or ESF) and line code (AMI or B8ZS) of the DS1 timing
signals being generated by the timing source.
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2
Select Configuration > Timing/Sync.
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3
In the Timing Mode: pull-down, verify External Timing is displayed. If not choose
External and click OK, Yes, Yes and select Configuration > Timing/Sync.
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4
Click on the Timing Input Ports tab at the top of the window.
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5
Enter the DS1 Input and Output Format: (SF or ESF) for REF-1 and REF-2.
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6
Enter the DS1 Input Line Code: (AMI or B8ZS) for REF-1 and REF-2.
Note:
to "Revertive". Otherwise, the system will go into holdover during some of the
following test. The Clock Mode Switching option is located on the System Timing
tab.
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7
Enter the SSM Support (Enabled or Disabled).
Note:
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8
Click OK.
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9
Select View > Timing/Sync.
Result:
•
•
•
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Alcatel-Lucent 1665 DMX R9.0
365-372-304R9.0 Issue 2
July 2010
During the installation test, ensure the Clock Mode Switching is provisioned
SSM is only supported on VLF mains and ESF framed inputs.
Correct line coding and frame format
Provisioned and active timing mode are both external
Both references are in service (IS)
External timing verification
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