XRT75R06D Datasheet, PDF (89/105 Pages) Exar Corporation – SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

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SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75R06D
REV. 1.0.0
FIGURE 64. ILLUSTRATION OF CONTINUOUS-ADD POINTER ADJUSTMENT SCENARIO
Added Pointer Adjustment
Continuous Pointer Adjustments
Continuous Pointer Adjustments
T
t
Telcordia GR-253-CORE defines an "Continuous Add" Pointer Adjustment, as the "Continuous" Pointer
Adjustment pattern, with an additional pointer adjustment inserted, as shown above in Figure 64.
Telcordia GR-253-CORE mandates that the Intrinsic Jitter, within the DS3 signal that is de-mapped from a
SONET signal, which is experiencing the "Continuous Add" pattern of Pointer Adjustments, must not exceed
1.3UI-pp.
8.5.10 Continuous Cancel
Figure 65 presents an illustration of the "Continuous Cancel Pattern" Pointer Adjustment Scenario per
Telcordia GR-253-CORE.
FIGURE 65. ILLUSTRATION OF CONTINUOUS-CANCEL POINTER ADJUSTMENT SCENARIO
Continuous Pointer Adjustments
T
Cancelled
Pointer Adjustment
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