XRT75VL00D datasheet(79/92 Pages) EXAR

Part #	XRT75VL00D

Description	E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

PDF	92 Pages

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Manufacturer	EXAR [Exar Corporation]

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XRT75VL00D

REV. 1.0.3

E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

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 55.

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.

9.5.10

Continuous Cancel

Figure 56 presents an illustration of the "Continuous Cancel Pattern" Pointer Adjustment Scenario per

Telcordia GR-253-CORE.

FIGURE 55. ILLUSTRATION OF CONTINUOUS-ADD POINTER ADJUSTMENT SCENARIO

FIGURE 56. ILLUSTRATION OF CONTINUOUS-CANCEL POINTER ADJUSTMENT SCENARIO

Continuous Pointer Adjustments

Added Pointer Adjustment

Continuous Pointer Adjustments

Cancelled

Pointer Adjustment

XRT75VL00D Datasheet(PDF) 79 Page - Exar Corporation