XRT75L06D Datasheet, PDF (87/103 Pages) Exar Corporation – SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

XRT75L06D
xr
SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.4
FIGURE 63. 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 63.
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.
7.5.10 Continuous Cancel
Figure 64 presents an illustration of the "Continuous Cancel Pattern" Pointer Adjustment Scenario per
Telcordia GR-253-CORE.
FIGURE 64. ILLUSTRATION OF CONTINUOUS-CANCEL POINTER ADJUSTMENT SCENARIO
Continuous Pointer Adjustments
T
Cancelled
Pointer Adjustment
83