參數(shù)資料
型號: XRT75R03DIVTR-F
廠商: Exar Corporation
文件頁數(shù): 25/135頁
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 3CH 128LQFP
標(biāo)準(zhǔn)包裝: 750
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 3/3
規(guī)程: DS3,E3,STS-1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 128-LQFP
供應(yīng)商設(shè)備封裝: 128-LQFP(14x20)
包裝: 帶卷 (TR)
XRT75R03D
116
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCRONIZER
REV. 1.0.4
Telcordia GR-253-CORE defines an "87-3 Cancel" Pointer Adjustment, as the "87-3 Continuous" Pointer
Adjustment pattern, with an additional pointer adjustment cancelled (or not executed), as shown above in
Figure 54.
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 "87-3 Cancel" pattern of Pointer Adjustments, must not exceed
1.3UI-pp.
10.5.8
Continuous Pattern
Figure 55 presents an illustration of the "Continuous" Pointer Adjustment Scenario per Telcordia GR-253-
CORE.
FIGURE 54. ILLUSTRATION OF 87-3 CANCEL POINTER ADJUSTMENT SCENARIO
FIGURE 55. ILLUSTRATION OF CONTINUOUS PERIODIC POINTER ADJUSTMENT SCENARIO
86 or 87 Pointer Adjustments
No Pointer
Adjustments
T
Cancelled
Pointer Adjustment
Initialization
Measurement Period
Repeating Continuous Pattern (see below)
Pointer Adjustment Events
T
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