Alcatel-Lucent 1850 TSS-320 Turn-Up And Commissioning Manual page 78

Tests and Measurements
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10
Check on the craft terminal that the signal T0 is derived from the "Int. Oscillator G.813"
timing reference block" (full line is visible) and that hold-over is written.
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11
The hold-over state is possible only if the other reference clock has been present for at
least 30 minutes.
1. The following is the CT procedure to set the clock derived from a STM-n port:
a. Click twice on rack/subrack
b. Select the STM-n board. Then in the "TP Search Criteria" section, select "OPS" or
c. In "Input Quality Configuration" field, select one of the listed options, then select
2. The following is the CT procedure to set the timing reference from a 2-MHz external
clock:
a. Click twice on Rack/Subrack
b. Select the PSF320 board. Then, in the "TP Search Criteria" section, select
c. Select "T3" (A or B, according to the PSF320 board selected) and click on "OK."
d. The selected "T3" timing reference is presented in the "Timing Source
e. In "Input Quality Configuration" field, select one of the listed options, then select
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"PPI" in the "Class" field and click on "Search." The "OPS" or "PPI" ports are
presented. Select one and click on "OK."
the "Priority" and click on "OK."
The selected port appears in the "Synchronization" view.
"Ignore" in the "Class" field, and click on "search." The input (T3) and output (T4)
timing references are presented.
Configuration" window.
the "Priority" and click on "OK."
S
F T E P S
Local testing and operating sequence
PN 8DG08136CAAA
Issue 1 March 2008