參數(shù)資料
型號: XRT75L04DIV
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
中文描述: ATM/SONET/SDH SUPPORT CIRCUIT, PQFP176
封裝: 24 X 24 MM, 1.40 MM HEIGHT, TQFP-176
文件頁數(shù): 80/98頁
文件大?。?/td> 536K
代理商: XRT75L04DIV
XRT75L04D
FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
á
REV. 1.0.1
76
9.5.5
Figure 51 presents an illustration of the "87-3 Continuous Pattern" Pointer Adjustment Scenario per Telcordia
GR-253-CORE.
87-3 Pattern
Telcordia GR-253-CORE defines an "87-3 Continuous" Pointer Adjustment pattern, as a repeating sequence of
90 pointer adjustment events. Within this 90 pointer adjustment event, 87 pointer adjustments are actually
executed. The remaining 3 pointer adjustments are never executed. The spacing between individual pointer
adjustment events (within this scenario) can range from 7.5ms to 10seconds.
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 Continuous" pattern of Pointer Adjustments, must not exceed
1.0UI-pp.
9.5.6
87-3 Add
Figure 52 presents an illustration of the "87-3 Add Pattern" Pointer Adjustment Scenario per Telcordia GR-253-
CORE.
F
IGURE
51. A
N
I
LLUSTRATION
OF
THE
87-3 C
ONTINUOUS
P
OINTER
A
DJUSTMENT
P
ATTERN
Initialization
Measurement Period
Repeating 87-3 Pattern (see below)
Pointer Adjustment Events
87-3 Pattern
87 Pointer Adjustment Events
No Pointer
Adjustments
T
NOTE: T ranges from 34ms to 10s (Req)
T ranges from 7.5ms to 34ms (Obj)
相關(guān)PDF資料
PDF描述
XRT75L04 FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
XRT75L04IV FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
XRT75L06D SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75L06DIB SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75L06 SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
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