Alcatel-Lucent 1850 TSS-320, Turn-Up And Commissioning Manual, Page: 38 / 140

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Local testing and operating sequence Tests and Measurements
3-12
PN 8DG08136CAAA
Issue 1 March 2008
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Check that the “free-running” indication is present in the timing reference block
dedicated to the internal oscillator G.783. If the “Hold-Over” indication is displayed,
first switch the equipment off and then back on again. Afterwards repeat all the
procedures.
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4
Select “Synchronization” -> “Set T0 Equal T4”
•
Check that the frequency counter reads a measured value of 2048 kHz ±4.6 ppm. To
perform this measure, the “Squelch T0/T4” must be deactivated (green color), by
selecting Synchronization -> T4 Configuration; in “Squelch T0/T4” field, set T0 =
G.813
SONET ports test
Purpose
•
Let through data to check if the ports are properly connected to the ODF.
•
Check PTx.
•
Check that ALS is working properly.
Test instruments
Note:
See Table 3-1, “Instruments” (p. 3-2) .
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Craft Terminal (E)
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Pattern Generator/Error Detector (A)
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Power meter (B)
•
x dB fixed attenuator
Accessories
Note:
See Table 3-2, “Accessories” (p. 3-2) .
•
Single-mode or multi-mode single-fiber splices (I) or (Q), according to the interface
type
•
Craft Terminal cable (L)
Test Bench
Set up the matrix loop via software.